From nobody Fri Jul 1 00:01:19 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9F45D12D130 for ; Fri, 1 Jul 2016 00:01:17 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.321 X-Spam-Level: X-Spam-Status: No, score=-4.321 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=uclouvain.be Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qOU-rmQUcZaD for ; Fri, 1 Jul 2016 00:01:15 -0700 (PDT) Received: from smtp2.sgsi.ucl.ac.be (smtp.sgsi.ucl.ac.be [130.104.5.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 0A84912D193 for ; Fri, 1 Jul 2016 00:01:14 -0700 (PDT) Received: from mbpobo.dhcp.info.ucl.ac.be (mbpobo.dhcp.info.ucl.ac.be [130.104.228.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: obonaventure@smtp2.sgsi.ucl.ac.be) by smtp2.sgsi.ucl.ac.be (Postfix) with ESMTPSA id 06DD667DBE7; Fri, 1 Jul 2016 09:01:02 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 smtp2.sgsi.ucl.ac.be 06DD667DBE7 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=uclouvain.be; s=selucl; t=1467356462; bh=PRPUEnTZlCBzwqZnmsw3lrnmf9oEZbmL5ojiy+dxQ+4=; h=Reply-To:Subject:References:To:From:Date:In-Reply-To; b=mqadeOEPHooiHfDDid2ekiFrT62uHBt/2T+FlU8SeQMg1hyZowWiMvUOAAqqWfIcx OQzfzWdNR+aaaex4npOsOU0VyZ1a45hGBc9ehdOrtG6Yo1H+efa5l6WdbWqo6GGLHm QFoWVh205oTDFtsE2gzpcJhzclf/faPIGSqOJCR8= X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.99 at smtp-2 References: <4552F0907735844E9204A62BBDD325E787CE22C1@NKGEML515-MBX.china.huawei.com> To: Mingui Zhang , "philip.eardley@bt.com" , "sarikaya@ieee.org" , "multipathtcp@ietf.org" From: Olivier Bonaventure Message-ID: <68c2382a-74c9-1999-e8d4-e5aceccbf4db@uclouvain.be> Date: Fri, 1 Jul 2016 09:01:01 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 MIME-Version: 1.0 In-Reply-To: <4552F0907735844E9204A62BBDD325E787CE22C1@NKGEML515-MBX.china.huawei.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Sgsi-Spamcheck: SASL authenticated, X-SGSI-Information: X-SGSI-MailScanner-ID: 06DD667DBE7.A958A X-SGSI-MailScanner: Found to be clean X-SGSI-From: olivier.bonaventure@uclouvain.be X-SGSI-Spam-Status: No Archived-At: Subject: Re: [multipathtcp] draft-boucadair-mptcp-plain-mode-07 X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list Reply-To: Olivier.Bonaventure@uclouvain.be List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Jul 2016 07:01:17 -0000 Hello, > > In the paired MPTCP proxies mechanism, there is user's TCP session and there is also multipath TCP session. It is a TCP over TCP idea, correct? No, there are three TCP connections in this scenario : - one (regular) TCP connection between client and CPE - one Multipath TCP connection between the CPE and the Concentrator - one (regular) TCP connection between the Concentrator and the remote server > As for TCP over TCP, the following page explains why an internal meltdown effect would take place due to the interaction between two leveled retransmission mechanisms. > http://sites.inka.de/bigred/devel/tcp-tcp.html This is a well known issue. > Do we have solid solutions for this issue nowadays? The solution is to terminate the TCP connections transparently. This is what most TCP optimisers used in mobile networks do already. Olivier From nobody Fri Jul 1 00:14:53 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1988812D193 for ; Fri, 1 Jul 2016 00:14:52 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.326 X-Spam-Level: X-Spam-Status: No, score=-3.326 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RP_MATCHES_RCVD=-1.426, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id dQkSuiZkCW52 for ; Fri, 1 Jul 2016 00:14:49 -0700 (PDT) Received: from mail.sfc.wide.ad.jp (shonan.sfc.wide.ad.jp [203.178.142.130]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A5AE012D106 for ; Fri, 1 Jul 2016 00:14:49 -0700 (PDT) Received: from mail-qk0-f174.google.com (mail-qk0-f174.google.com [209.85.220.174]) by mail.sfc.wide.ad.jp (Postfix) with ESMTPSA id 7E7362784D4 for ; Fri, 1 Jul 2016 16:14:47 +0900 (JST) Received: by mail-qk0-f174.google.com with SMTP id t127so187629351qkf.1 for ; Fri, 01 Jul 2016 00:14:47 -0700 (PDT) X-Gm-Message-State: ALyK8tIhOb2RsSFSXG+sNpW8UYERD8ECwWwStfLSR4l2QYIGmRwHLpyzW1PoEexOVYNE0/4FzsQ3k1+k12Wf3g== X-Received: by 10.37.14.11 with SMTP id 11mr8644349ybo.43.1467357286056; Fri, 01 Jul 2016 00:14:46 -0700 (PDT) MIME-Version: 1.0 Received: by 10.13.196.3 with HTTP; Fri, 1 Jul 2016 00:14:45 -0700 (PDT) From: Yoshifumi Nishida Date: Fri, 1 Jul 2016 00:14:45 -0700 X-Gmail-Original-Message-ID: Message-ID: To: multipathtcp Content-Type: multipart/alternative; boundary=001a113fd74ecb4d6805368dbd67 Archived-At: Subject: [multipathtcp] brief summary for bumping version number discussion X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Jul 2016 07:14:52 -0000 --001a113fd74ecb4d6805368dbd67 Content-Type: text/plain; charset=UTF-8 Hi folks, During the interim meeting, we found we still need some more discussions for bumping the version number. So, I am trying to summarize the point of the discussion for further discussions. As far as I can think, there are several reasons we would like to bump the version number. 1) As we are moving from experimental to standard, we want to change the version number so that we can distinguish both versions clearly. 2) In order to support the features in the bis draft (especially initial handshake scheme), we need to change the version number. Otherwise we will have to have two initial handshake mechanisms in a single version, which will be complex and tricky. On the other hand, I guess the followings are the reasons for not bumping version number. A) As we're still in the middle of deployment process for mptcp, bumping version number may create confusions in the deployments. B) The new features in the bis draft are not critical. The use cases for them don't look major cases. We might want to see some statistics to confirm they are major cases. Please point out if I miss something in the above. If you want to add something to them, please do so that we can clarify our discussion points more. BTW, while we might want to see some data for B), I am wondering if we could see some data about how much mptcp implementations are in the wild to think about A) Is there any way to see this sort of data? Thanks, -- Yoshi --001a113fd74ecb4d6805368dbd67 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi folks,

During the interim meeting, w= e found we still need some more discussions for bumping the version number.=
So, I am trying to summarize the point of the discussion for furth= er discussions.

As far as I can think, there a= re several reasons we would like to bump the version number.
=
=C2=A0 1) As we are moving from experimental to standard, we= want to change the version number so that we can distinguish both versions= clearly.

=C2=A0 2) In order to support the featur= es in the bis draft (especially initial handshake scheme), we need to chang= e the version number.=C2=A0
=C2=A0 =C2=A0 =C2=A0 =C2=A0Otherwise = we will have to have two initial handshake mechanisms in a single version, = which will be complex and tricky.=C2=A0

On the oth= er hand, I guess the followings are the reasons for not bumping version num= ber.

=C2=A0 A) As we're still in the middle of= deployment process for mptcp, bumping version number may create confusions= in the deployments.
=C2=A0=C2=A0
=C2=A0 B) The new fea= tures in the bis draft are not critical. The use cases for them don't l= ook major cases. We might want to see some statistics to confirm they are m= ajor cases.
=C2=A0 =C2=A0 =C2=A0
Please point out = if I miss something in the above. If you want to add something to them, ple= ase do so that we can clarify our discussion points more.
<= br>

BTW, while we might want to see some data for = B), I am wondering if we could see some data about how much mptcp implement= ations are in the wild to think about A)
Is there any way to see = this sort of data?=C2=A0

Thanks,
--
Yoshi
--001a113fd74ecb4d6805368dbd67-- From nobody Fri Jul 1 10:28:12 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1075812D75C for ; Fri, 1 Jul 2016 10:28:11 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.326 X-Spam-Level: X-Spam-Status: No, score=-3.326 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RP_MATCHES_RCVD=-1.426] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EsQT2E5bx9sm for ; Fri, 1 Jul 2016 10:28:09 -0700 (PDT) Received: from nitro.isi.edu (nitro.isi.edu [128.9.208.207]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D10C012D66D for ; Fri, 1 Jul 2016 10:28:09 -0700 (PDT) Received: from [128.9.184.82] ([128.9.184.82]) (authenticated bits=0) by nitro.isi.edu (8.13.8/8.13.8) with ESMTP id u61HRHne014772 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT); Fri, 1 Jul 2016 10:27:17 -0700 (PDT) To: Olivier.Bonaventure@uclouvain.be, Mingui Zhang , "philip.eardley@bt.com" , "sarikaya@ieee.org" , "multipathtcp@ietf.org" References: <4552F0907735844E9204A62BBDD325E787CE22C1@NKGEML515-MBX.china.huawei.com> <68c2382a-74c9-1999-e8d4-e5aceccbf4db@uclouvain.be> From: Joe Touch Message-ID: <5776A7F3.1000906@isi.edu> Date: Fri, 1 Jul 2016 10:27:15 -0700 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.7.2 MIME-Version: 1.0 In-Reply-To: <68c2382a-74c9-1999-e8d4-e5aceccbf4db@uclouvain.be> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-MailScanner-ID: u61HRHne014772 X-ISI-4-69-MailScanner: Found to be clean X-MailScanner-From: touch@isi.edu Archived-At: Subject: Re: [multipathtcp] draft-boucadair-mptcp-plain-mode-07 X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Jul 2016 17:28:11 -0000 On 7/1/2016 12:01 AM, Olivier Bonaventure wrote: > Hello, >> >> In the paired MPTCP proxies mechanism, there is user's TCP session >> and there is also multipath TCP session. It is a TCP over TCP idea, >> correct? > > No, there are three TCP connections in this scenario : > > - one (regular) TCP connection between client and CPE > - one Multipath TCP connection between the CPE and the Concentrator > - one (regular) TCP connection between the Concentrator and the remote > server > >> As for TCP over TCP, the following page explains why an internal >> meltdown effect would take place due to the interaction between two >> leveled retransmission mechanisms. >> http://sites.inka.de/bigred/devel/tcp-tcp.html > > This is a well known issue. > >> Do we have solid solutions for this issue nowadays? > > The solution is to terminate the TCP connections transparently. This > is what most TCP optimisers used in mobile networks do already. Is there a current standard or BCP endorsing this practice? AFAICT, it's in direct opposition of RFC1122. I hope we don't want to create a new RFC that flies in the face of what few standards we have unless we're prepared to revise those standards first. "deployed in the wild" is not a sufficient justification, IMO. Joe From nobody Sat Jul 2 00:33:33 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BFC2C12B00E for ; Sat, 2 Jul 2016 00:33:30 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.518 X-Spam-Level: X-Spam-Status: No, score=-5.518 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, RP_MATCHES_RCVD=-1.426, SPF_PASS=-0.001, T_DKIM_INVALID=0.01] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=fail (2048-bit key) reason="fail (message has been altered)" header.d=apple.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id kITjECUyrM-p for ; Sat, 2 Jul 2016 00:33:28 -0700 (PDT) Received: from mail-in6.apple.com (mail-out6.apple.com [17.151.62.28]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 0168A12B038 for ; 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Sat, 2 Jul 2016 00:33:27 -0700 (PDT) X-AuditID: 11973e15-f798f6d000001e48-e1-57776e471a35 Received: from nwk-mmpp-sz09.apple.com (nwk-mmpp-sz09.apple.com [17.128.115.80]) (using TLS with cipher DHE-RSA-AES128-SHA (128/128 bits)) (Client did not present a certificate) by relay5.apple.com (Apple SCV relay) with SMTP id A7.26.28504.74E67775; Sat, 2 Jul 2016 00:33:27 -0700 (PDT) Received: from [17.149.238.46] (unknown [17.149.238.46]) by nwk-mmpp-sz09.apple.com (Oracle Communications Messaging Server 7.0.5.35.0 64bit (built Mar 31 2015)) with ESMTPSA id <0O9O00I8EFNR1A40@nwk-mmpp-sz09.apple.com> for multipathtcp@ietf.org; Sat, 02 Jul 2016 00:33:27 -0700 (PDT) Sender: cpaasch@apple.com Content-type: text/plain; charset=us-ascii MIME-version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Christoph Paasch In-reply-to: Date: Sat, 02 Jul 2016 00:33:27 -0700 Content-transfer-encoding: quoted-printable Message-id: <7D01552D-AF37-4B69-8A2F-37CDA350AA44@apple.com> References: To: Yoshifumi Nishida X-Mailer: Apple Mail (2.3124) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrDLMWRmVeSWpSXmKPExsUi2FAYoeueVx5ucHKavsXn1dfZHBg9liz5 yRTAGMVlk5Kak1mWWqRvl8CVcXxKeMEkoYqXx30bGJfxdTFyckgImEjcmbGYHcIWk7hwbz1b FyMXh5DAXkaJNf82scIUHWvcxgyRWMYkcfj0cXYIZymTxJ+GTrAqYQFJie47d5hBbGYBLYn1 O48zgdi8AnoSk482sEHU+Et8vbEQzGYDqnl7ux2sl1MgWKJv5mYwm0VAVeLqrClANRxAc4wl psw0ghipLfHk3QVWiJE2Es03O1hAbCGBAIl9rbvBPhABWvXh+0cmiKNlJZ6cXMQCcqeEwBw2 ieMb/jBPYBSZheS8WUjOm4VkxwJG5lWMQrmJmTm6mXlmeokFBTmpesn5uZsYQcE93U50B+OZ VVaHGAU4GJV4eB0+loULsSaWFVfmHmKU5mBREuedvRgoJJCeWJKanZpakFoUX1Sak1p8iJGJ g1OqgfFIssTnUCWjGX8U07riw9O3v2b9/dNKNju38Am/9GTNz9FPWna/+PVk9rmFKr+SP+0U 1/JcpyEjrsqx+PTkf0a/dry2sTr6vrCtOzYko7V8wtkJa0qdO7Z53PolG92Wyrrc1rrpVRVf Y+TdlEmyhn/y+sTY5+p06u9fs6A87uaxj9asi0xP5iixFGckGmoxFxUnAgBherPXTwIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrOLMWRmVeSWpSXmKPExsUi2FAcoOueVx5ucKBFx+Lz6utsDoweS5b8 ZApgjOKySUnNySxLLdK3S+DKOD4lvGCSUMXL474NjMv4uhg5OSQETCSONW5jhrDFJC7cW8/W xcjFISSwjEni8Onj7BDOUiaJPw2drCBVwgKSEt137oB1MAtoSazfeZwJxOYV0JOYfLSBDaLG X+LrjYVgNhtQzdvb7WC9nALBEn0zN4PZLAKqEldnTQGq4QCaYywxZaYRxEhtiSfvLrBCjLSR aL7ZwQJiCwkESOxr3c0OYosArfrw/SMTxNGyEk9OLmKZwCg4C8lFs5BcNAvJ2AWMzKsYBYpS cxIrTfUSCwpyUvWS83M3MYKDsTBiB+P/ZVaHGAU4GJV4eGd8LgsXYk0sK67MPcQowcGsJMLb llMeLsSbklhZlVqUH19UmpNafIgxGeiXicxSosn5wEjJK4k3NDExMDE2NjM2NjcxJ01YSZyX YxHQVoH0xJLU7NTUgtQimC1MHJxSDYz5FoEs6w8YBjF/nmdW/HSX363X2Q3bvczlK1lt7+Tt aTAq0HxrGH+PT+P34iPLVpef3738q674FN/16VIzVjm/0H0vO0/MaxN/w7bzjeyXdsTsanTx vtbyLM1l2gNd5jkzTtfd+r77vxiTC2tFx9vZv1ym56z2Ou5288bPi8p7uUSNjScLbfirxFKc kWioxVxUnAgA4xEmTYoCAAA= Archived-At: Cc: MultiPath TCP - IETF WG Subject: Re: [multipathtcp] brief summary for bumping version number discussion X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 02 Jul 2016 07:33:31 -0000 Hello, > On Jul 1, 2016, at 12:14 AM, Yoshifumi Nishida = wrote: > During the interim meeting, we found we still need some more = discussions for bumping the version number. > So, I am trying to summarize the point of the discussion for further = discussions. >=20 > As far as I can think, there are several reasons we would like to bump = the version number. >=20 > 1) As we are moving from experimental to standard, we want to change = the version number so that we can distinguish both versions clearly. >=20 > 2) In order to support the features in the bis draft (especially = initial handshake scheme), we need to change the version number.=20 > Otherwise we will have to have two initial handshake mechanisms = in a single version, which will be complex and tricky.=20 Besides the handshake, ADD_ADDR2 also adds complexity. If we don't = change the version-number, hosts will have to do probing to see whether = the peer supports ADD_ADDR2 or not. And when a host receives an = ADD_ADDR, he won't be sure whether it is because the peer is RFC6824bis = compliant and is just probing (and the ADD_ADDR2 has been lost) or = whether the peer only supports RFC6824. >=20 > On the other hand, I guess the followings are the reasons for not = bumping version number. >=20 > A) As we're still in the middle of deployment process for mptcp, = bumping version number may create confusions in the deployments. > =20 > B) The new features in the bis draft are not critical. The use cases = for them don't look major cases. We might want to see some statistics to = confirm they are major cases. I will present statistics in Berlin. Christoph > =20 > Please point out if I miss something in the above. If you want to add = something to them, please do so that we can clarify our discussion = points more. >=20 >=20 > BTW, while we might want to see some data for B), I am wondering if we = could see some data about how much mptcp implementations are in the wild = to think about A) > Is there any way to see this sort of data?=20 >=20 > Thanks, > -- > Yoshi > _______________________________________________ > multipathtcp mailing list > multipathtcp@ietf.org > https://www.ietf.org/mailman/listinfo/multipathtcp From nobody Mon Jul 4 06:23:51 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4466B12D0C4 for ; Mon, 4 Jul 2016 06:23:50 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.619 X-Spam-Level: X-Spam-Status: No, score=-2.619 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id yKUr38JfxGwk for ; Mon, 4 Jul 2016 06:23:48 -0700 (PDT) Received: from relais-inet.francetelecom.com (relais-ias92.francetelecom.com [193.251.215.92]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id EA51512B055 for ; Mon, 4 Jul 2016 06:23:47 -0700 (PDT) Received: from omfedm07.si.francetelecom.fr (unknown [xx.xx.xx.3]) by omfedm09.si.francetelecom.fr (ESMTP service) with ESMTP id 2E6BC2DC335 for ; Mon, 4 Jul 2016 15:23:46 +0200 (CEST) Received: from Exchangemail-eme2.itn.ftgroup (unknown [10.114.31.58]) by omfedm07.si.francetelecom.fr (ESMTP service) with ESMTP id 120FB4C122 for ; Mon, 4 Jul 2016 15:23:46 +0200 (CEST) Received: from OPEXCLILMA3.corporate.adroot.infra.ftgroup ([fe80::60a9:abc3:86e6:2541]) by OPEXCLILM33.corporate.adroot.infra.ftgroup ([fe80::3881:fc15:b4b2:9017%19]) with mapi id 14.03.0294.000; Mon, 4 Jul 2016 15:23:46 +0200 From: To: "multipathtcp@ietf.org" Thread-Topic: I-D Action: draft-boucadair-mptcp-plain-mode-08.txt Thread-Index: AQHR1fNEVn9pU4ZiGkemP1g5o58SUaAIP9+g Date: Mon, 4 Jul 2016 13:23:45 +0000 Message-ID: <787AE7BB302AE849A7480A190F8B933008DBCD11@OPEXCLILMA3.corporate.adroot.infra.ftgroup> References: <20160704125444.2602.7191.idtracker@ietfa.amsl.com> In-Reply-To: <20160704125444.2602.7191.idtracker@ietfa.amsl.com> Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.168.234.5] Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-PMX-Version: 6.2.1.2478543, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2016.6.17.114517 Archived-At: Subject: [multipathtcp] TR: I-D Action: draft-boucadair-mptcp-plain-mode-08.txt X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Jul 2016 13:23:50 -0000 Dear all,=20 A new version that integrates the comments received from the list is availa= ble online: * clarify that the solution applies for both CPEs and hosts directly connec= ted to operator networks. * clarify how fragmentation is managed for UDP. * clarify that one MPTCP connection is bound to one UDP flow * precise the behavior when a plain mode option includes multicast and broa= dcast addresses * call out that CGN optimization are inherited (e.g., optimize logging file= s, address pooling, port randomization, port set assuagement, etc.). * add a new section to explicit the target deployment and middlebox interfe= rence * add some text about checksum adjustment Reviews are more than welcome. Cheers, Med > -----Message d'origine----- > De=A0: I-D-Announce [mailto:i-d-announce-bounces@ietf.org] De la part de > internet-drafts@ietf.org > Envoy=E9=A0: lundi 4 juillet 2016 14:55 > =C0=A0: i-d-announce@ietf.org > Objet=A0: I-D Action: draft-boucadair-mptcp-plain-mode-08.txt >=20 >=20 > A New Internet-Draft is available from the on-line Internet-Drafts > directories. >=20 >=20 > Title : An MPTCP Option for Network-Assisted MPTCP > Deployments: Plain Transport Mode > Authors : Mohamed Boucadair > Christian Jacquenet > Denis Behaghel > Stefano Secci > Wim Henderickx > Robert Skog > Olivier Bonaventure > Suresh Vinapamula > SungHoon Seo > Wouter Cloetens > Ullrich Meyer > Luis M. Contreras > Filename : draft-boucadair-mptcp-plain-mode-08.txt > Pages : 34 > Date : 2016-07-04 >=20 > Abstract: > Because of the lack of Multipath TCP (MPTCP) support at the server > side, some service providers now consider a network-assisted model > that relies upon the activation of a dedicated function called MPTCP > concentrator. This document focuses on a deployment scheme where the > identity of the MPTCP concentrator(s) is explicitly configured on > connected hosts. >=20 > This document specifies an MPTCP option that is used to avoid the > encapsulation of packets and out-of-band signaling between the CPE > and the MPTCP concentrator. Also, this document specifies how UDP > traffic, in particular, can be distributed among available paths by > leveraging MPTCP capabilities. >=20 >=20 >=20 > The IETF datatracker status page for this draft is: > https://datatracker.ietf.org/doc/draft-boucadair-mptcp-plain-mode/ >=20 > There's also a htmlized version available at: > https://tools.ietf.org/html/draft-boucadair-mptcp-plain-mode-08 >=20 > A diff from the previous version is available at: > https://www.ietf.org/rfcdiff?url2=3Ddraft-boucadair-mptcp-plain-mode-08 >=20 >=20 > Please note that it may take a couple of minutes from the time of > submission > until the htmlized version and diff are available at tools.ietf.org. >=20 > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ >=20 > _______________________________________________ > I-D-Announce mailing list > I-D-Announce@ietf.org > https://www.ietf.org/mailman/listinfo/i-d-announce > Internet-Draft directories: http://www.ietf.org/shadow.html > or ftp://ftp.ietf.org/ietf/1shadow-sites.txt From nobody Tue Jul 5 08:48:04 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EDD5612D0AA for ; Tue, 5 Jul 2016 08:48:02 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.727 X-Spam-Level: X-Spam-Status: No, score=-5.727 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-1.426, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); domainkeys=pass (1024-bit key) header.from=Jordan.Melzer@telus.com header.d=telus.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4lRlRV6J4AJ8 for ; Tue, 5 Jul 2016 08:48:00 -0700 (PDT) Received: from donder.nssi.telus.com (donder.nssi.telus.com [208.38.59.82]) by ietfa.amsl.com (Postfix) with ESMTP id 6D5D712B004 for ; Tue, 5 Jul 2016 08:48:00 -0700 (PDT) DomainKey-Signature: s=donder.nssi; d=telus.com; c=nofws; q=dns; h=X-IronPort-Anti-Spam-Filtered: X-IronPort-Anti-Spam-Result:X-IronPort-AV:Received: Received:From:To:CC:Date:Subject:Thread-Topic: Thread-Index:Message-ID:References:In-Reply-To: Accept-Language:Content-Language:X-MS-Has-Attach: X-MS-TNEF-Correlator:acceptlanguage:Content-Type: Content-Transfer-Encoding:MIME-Version; b=HsX+JgMp9wqMuYBP8j1abov9tMwkaSHjZDSDzbSgZ8l5/eRvrNs92Jmk 9Rm5Rl8h6wImlkY8O7muKymFG/Hq4xg6JTWJOmNFODAUJdq1FamzfJMbe eHWXZwl+doysKfxOjRhacytKj6N2j+UZRVydtqwqZ2iHlWHKB9kuAnhyR 0=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2ClBABW1XtX/5Jjso5cDoMDLUkNfKEtmBmBdyKFLEoCgTQ4FAEBAQEBAQFlJ4RMAQEFAQE4GRsLDAQCAQgNBAQBAQEeCQcnCxQJCAEBBA4FCBOIFQEECbskAQEBAQEBAQEBAQEBAQEBAQEBAQEBHIYnhE2EKhiDKoIvBY54ihuGCYp2hyqFSJAKHjaDNVpPiHkBAQE X-IronPort-AV: E=Sophos;i="5.26,580,1459814400"; d="scan'208";a="534899993" Received: from unknown (HELO WP40081.corp.ads) ([142.178.99.146]) by donder-o.nssi.telus.com with ESMTP/TLS/AES128-SHA; 05 Jul 2016 15:47:57 +0000 Received: from WP40046.corp.ads ([::1]) by WP40081.corp.ads ([::1]) with mapi; Tue, 5 Jul 2016 09:47:57 -0600 From: Jordan Melzer To: Joe Touch Date: Tue, 5 Jul 2016 09:47:55 -0600 Thread-Topic: [multipathtcp] draft-boucadair-mptcp-plain-mode-07 Thread-Index: AdHTvfdIGR2fbGVHRB6rTxFRFD3TsQCPkb4w Message-ID: <80C0017654A043479F53C41112BE8476897A4F31B1@WP40046.corp.ads> References: <4552F0907735844E9204A62BBDD325E787CE22C1@NKGEML515-MBX.china.huawei.com> <68c2382a-74c9-1999-e8d4-e5aceccbf4db@uclouvain.be> <5776A7F3.1000906@isi.edu> In-Reply-To: <5776A7F3.1000906@isi.edu> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: Cc: "multipathtcp@ietf.org Mailing List \(multipathtcp@ietf.org\)" Subject: Re: [multipathtcp] draft-boucadair-mptcp-plain-mode-07 X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Jul 2016 15:48:03 -0000 Hi Joe, The main RFC reference for performance enhancing proxies is here: https://tools.ietf.org/html/rfc3135 It gives consideration to the end-to-end principle and describes deployment= s (current as of 2001). Do you have an informational RFC (or other BCP) reference for routing-based= approaches to multipathing individual-user traffic? Re TCP over TCP approaches, if they could work, would you like them better = than a proxy approach? Eg, (untested) MP-DCTCP lower layer? Jordan -----Original Message----- From: multipathtcp [mailto:multipathtcp-bounces@ietf.org] On Behalf Of Joe = Touch Sent: July 1, 2016 01:27 PM To: Olivier.Bonaventure@uclouvain.be; Mingui Zhang; philip.eardley@bt.com; = sarikaya@ieee.org; multipathtcp@ietf.org Subject: Re: [multipathtcp] draft-boucadair-mptcp-plain-mode-07 On 7/1/2016 12:01 AM, Olivier Bonaventure wrote: > Hello, >> >> In the paired MPTCP proxies mechanism, there is user's TCP session=20 >> and there is also multipath TCP session. It is a TCP over TCP idea,=20 >> correct? > > No, there are three TCP connections in this scenario : > > - one (regular) TCP connection between client and CPE > - one Multipath TCP connection between the CPE and the Concentrator > - one (regular) TCP connection between the Concentrator and the remote=20 > server > >> As for TCP over TCP, the following page explains why an internal=20 >> meltdown effect would take place due to the interaction between two=20 >> leveled retransmission mechanisms. >> http://sites.inka.de/bigred/devel/tcp-tcp.html > > This is a well known issue. > >> Do we have solid solutions for this issue nowadays? > > The solution is to terminate the TCP connections transparently. This=20 > is what most TCP optimisers used in mobile networks do already. Is there a current standard or BCP endorsing this practice? AFAICT, it's in direct opposition of RFC1122. I hope we don't want to creat= e a new RFC that flies in the face of what few standards we have unless we'= re prepared to revise those standards first. "deployed in the wild" is not a sufficient justification, IMO. Joe _______________________________________________ multipathtcp mailing list multipathtcp@ietf.org https://www.ietf.org/mailman/listinfo/multipathtcp From nobody Tue Jul 5 10:20:41 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2508112D0C3 for ; Tue, 5 Jul 2016 10:20:40 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.326 X-Spam-Level: X-Spam-Status: No, score=-3.326 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RP_MATCHES_RCVD=-1.426] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id urw-7KXpGE5V for ; Tue, 5 Jul 2016 10:20:38 -0700 (PDT) Received: from nitro.isi.edu (nitro.isi.edu [128.9.208.207]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 95D0312B060 for ; Tue, 5 Jul 2016 10:20:38 -0700 (PDT) Received: from [128.9.184.115] ([128.9.184.115]) (authenticated bits=0) by nitro.isi.edu (8.13.8/8.13.8) with ESMTP id u65HKCUO020964 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT); Tue, 5 Jul 2016 10:20:12 -0700 (PDT) To: Jordan Melzer References: <4552F0907735844E9204A62BBDD325E787CE22C1@NKGEML515-MBX.china.huawei.com> <68c2382a-74c9-1999-e8d4-e5aceccbf4db@uclouvain.be> <5776A7F3.1000906@isi.edu> <80C0017654A043479F53C41112BE8476897A4F31B1@WP40046.corp.ads> From: Joe Touch Message-ID: <577BEC4A.6030409@isi.edu> Date: Tue, 5 Jul 2016 10:20:10 -0700 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.7.2 MIME-Version: 1.0 In-Reply-To: <80C0017654A043479F53C41112BE8476897A4F31B1@WP40046.corp.ads> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-MailScanner-ID: u65HKCUO020964 X-ISI-4-69-MailScanner: Found to be clean X-MailScanner-From: touch@isi.edu Archived-At: Cc: "multipathtcp@ietf.org Mailing List \(multipathtcp@ietf.org\)" Subject: Re: [multipathtcp] draft-boucadair-mptcp-plain-mode-07 X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Jul 2016 17:20:40 -0000 On 7/5/2016 8:47 AM, Jordan Melzer wrote: > Hi Joe, > > The main RFC reference for performance enhancing proxies is here: > https://tools.ietf.org/html/rfc3135 That's informational, not standards track. I don't think it is appropriate to endorse the behaviors described in that RFC in a standards-track protocol. > It gives consideration to the end-to-end principle and describes deployments (current as of 2001). > > Do you have an informational RFC (or other BCP) reference for routing-based approaches to multipathing individual-user traffic? Informational RFCs are not BCPs. I don't have such a reference or know whether one exists, but then again, that's your challenge. > Re TCP over TCP approaches, if they could work, would you like them better than a proxy approach? Eg, (untested) MP-DCTCP lower layer? I judge IETF approaches by the following criteria: - whether there is a problem that needs to be solved (or a new capability that needs to exist) - whether the solution solves the problem (or provides the new capability) - the impact of the solution on the rest of the Internet You haven't convinced me of any of the above yet. Joe From nobody Tue Jul 5 23:15:13 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 517E812B05C for ; Tue, 5 Jul 2016 23:15:12 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.326 X-Spam-Level: X-Spam-Status: No, score=-3.326 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RP_MATCHES_RCVD=-1.426, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3o2IZOGbGmMk for ; Tue, 5 Jul 2016 23:15:10 -0700 (PDT) Received: from mail.sfc.wide.ad.jp (shonan.sfc.wide.ad.jp [IPv6:2001:200:0:8803::53]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 2E8E212B03D for ; Tue, 5 Jul 2016 23:15:09 -0700 (PDT) Received: from mail-yw0-f170.google.com (mail-yw0-f170.google.com [209.85.161.170]) by mail.sfc.wide.ad.jp (Postfix) with ESMTPSA id 410ED278308 for ; Wed, 6 Jul 2016 15:15:08 +0900 (JST) Received: by mail-yw0-f170.google.com with SMTP id v77so80164621ywg.0 for ; Tue, 05 Jul 2016 23:15:08 -0700 (PDT) X-Gm-Message-State: ALyK8tIuEqDU0N/iak4m+GWAURyty7M7W2mE8CJOAs6VtvTr9hnv4nFKVXxV1MtYCSzEvSpciWCmmLDSrJwDAg== X-Received: by 10.129.111.197 with SMTP id k188mr13726313ywc.185.1467785706835; Tue, 05 Jul 2016 23:15:06 -0700 (PDT) MIME-Version: 1.0 Received: by 10.13.196.3 with HTTP; Tue, 5 Jul 2016 23:15:06 -0700 (PDT) From: Yoshifumi Nishida Date: Tue, 5 Jul 2016 23:15:06 -0700 X-Gmail-Original-Message-ID: Message-ID: To: multipathtcp Content-Type: multipart/alternative; boundary=001a11493230a99ac50536f17da0 Archived-At: Subject: [multipathtcp] draft minute for interim meeting at 6/20 X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Jul 2016 06:15:12 -0000 --001a11493230a99ac50536f17da0 Content-Type: text/plain; charset=UTF-8 Hi, Sorry for the delay. I have uploaded the minute for the last interim meeting on: https://www.ietf.org/proceedings/interim-2016-mptcp-01/minutes/minutes-interim-2016-mptcp-01 Please let chairs know if there's any missing stuff or you have some comments or questions or suggestions. Also, we put a link for audio archive in our wiki page: https://tools.ietf.org/wg/mptcp/trac/wiki/Interim_June_2016 Please use when you want to check audio archive. Thanks, -- Yoshi & Phil --001a11493230a99ac50536f17da0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi,
Sorry for the delay.
I have uploaded the= minute for the last interim meeting on:

Please let chairs = know if there's any missing stuff or you have some comments or question= s or suggestions.

Also, we put a link for audio ar= chive in our wiki page:
Please use when you want to check audio a= rchive.

Thanks,
--
Yoshi &= Phil
--001a11493230a99ac50536f17da0-- From nobody Wed Jul 6 00:34:58 2016 Return-Path: X-Original-To: multipathtcp@ietf.org Delivered-To: multipathtcp@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 032E112D6A7; Wed, 6 Jul 2016 00:34:57 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: X-Test-IDTracker: no X-IETF-IDTracker: 6.25.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20160706073457.7825.14761.idtracker@ietfa.amsl.com> Date: Wed, 06 Jul 2016 00:34:57 -0700 Archived-At: Cc: multipathtcp@ietf.org Subject: [multipathtcp] I-D Action: draft-ietf-mptcp-rfc6824bis-06.txt X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Jul 2016 07:34:57 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Multipath TCP of the IETF. Title : TCP Extensions for Multipath Operation with Multiple Addresses Authors : Alan Ford Costin Raiciu Mark Handley Olivier Bonaventure Christoph Paasch Filename : draft-ietf-mptcp-rfc6824bis-06.txt Pages : 72 Date : 2016-07-06 Abstract: TCP/IP communication is currently restricted to a single path per connection, yet multiple paths often exist between peers. The simultaneous use of these multiple paths for a TCP/IP session would improve resource usage within the network and, thus, improve user experience through higher throughput and improved resilience to network failure. Multipath TCP provides the ability to simultaneously use multiple paths between peers. This document presents a set of extensions to traditional TCP to support multipath operation. The protocol offers the same type of service to applications as TCP (i.e., reliable bytestream), and it provides the components necessary to establish and use multiple TCP flows across potentially disjoint paths. This document specifies v1 of Multipath TCP, obsoleting v0 as specified in RFC6824 [RFC6824] through clarifications and modifications primarily driven by deployment experience. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-mptcp-rfc6824bis/ There's also a htmlized version available at: https://tools.ietf.org/html/draft-ietf-mptcp-rfc6824bis-06 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-mptcp-rfc6824bis-06 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Wed Jul 6 00:38:02 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BA00212D5FC for ; Wed, 6 Jul 2016 00:37:59 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.699 X-Spam-Level: X-Spam-Status: No, score=-2.699 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id yXdSZ6Ug2jJK for ; Wed, 6 Jul 2016 00:37:57 -0700 (PDT) Received: from mail-yw0-x22c.google.com (mail-yw0-x22c.google.com [IPv6:2607:f8b0:4002:c05::22c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A952912B05F for ; Wed, 6 Jul 2016 00:37:57 -0700 (PDT) Received: by mail-yw0-x22c.google.com with SMTP id i12so80512342ywa.1 for ; Wed, 06 Jul 2016 00:37:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=kWTMLxw/2nyMKjGLU+GVaBO4fwhA9FLZN2HuRyZ9HT0=; b=0xJfJkP/gJPHmpFvhdDT+aJnMIOuXaDAF5KCz261pBqTu9U3oZpwtvqlnvjHXvSD4W K9DzWR4BV8Y040ilpVZFSx5WjFZcrg5yT94bNRHhNpmRyibz2tDkb3lw4MUQTRLX92i/ j2EemV3+Mu0uoOvRZ8MKur5sO9KVLeJcDC9HIREwgweau/UN1rXqa5z/6I1dNqBXE74I YNXSBy+eUogx14a9GfeiD7c+Y+SZbinenMtX0q/MK+1Sa9PcEqydsWnIj/L3tGxn8T+S +62DXQDML37wKp+ZKoB03isgAnXUhEe8bkaCn/keilavXpyDXjJ869qJ3WHWxo1NOXsz LCkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=kWTMLxw/2nyMKjGLU+GVaBO4fwhA9FLZN2HuRyZ9HT0=; b=fo+FiaYeM0QB4n9E/UzBXkLbmIl8PbKeH3H81QhXqrqLVwQRX/xHjf+fKqipwhNYKV biRC/8tES2yN8tdkw91QcRg1diNXL/2GJfGqffrlViYBaKnG6ENUKXH4YkaSdfGgHmsR EXxry8UUi7///gvenbUCsfhHWtiBNxYh8VWbo7f1FcbQcMxaIY0Ti0OOo4GfDDp24DCR vxFD82HPbAKGNr0qXeJ6goVcvqjFgYgbDJ55j1mAIZApTzIXJK1oH8i1K3gO+ValPIee kmPK5uKmMrg5+LRBsrWrx8TBuKK+tt1w2sMLnNaRPthFArX0nQGoalSBz4ylhIgQFpYG mRNA== X-Gm-Message-State: ALyK8tI9lIoHxWHxP+Ce2jpf8C3EAuj3hGWdrmiditO5gUBRKZzrIZdeIUuCAHHjiEDNcSrL1dCQTtuB93B0Dg== X-Received: by 10.37.52.129 with SMTP id b123mr13328938yba.42.1467790676711; Wed, 06 Jul 2016 00:37:56 -0700 (PDT) MIME-Version: 1.0 Received: by 10.129.152.146 with HTTP; Wed, 6 Jul 2016 00:37:56 -0700 (PDT) In-Reply-To: <20160706073457.7825.14761.idtracker@ietfa.amsl.com> References: <20160706073457.7825.14761.idtracker@ietfa.amsl.com> From: Alan Ford Date: Wed, 6 Jul 2016 08:37:56 +0100 Message-ID: To: "multipathtcp@ietf.org" Content-Type: multipart/alternative; boundary=001a1147c3aee3debe0536f2a56a Archived-At: Subject: Re: [multipathtcp] I-D Action: draft-ietf-mptcp-rfc6824bis-06.txt X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Jul 2016 07:38:00 -0000 --001a1147c3aee3debe0536f2a56a Content-Type: text/plain; charset=UTF-8 Hi all, There are no significant changes in this version, just revving the draft and absorbing some experimental option text re IANA considerations which we had missed from the previous revision (thanks, Med). Any significant changes re proxies etc are for discussion in Berlin. Best regards, Alan On 6 July 2016 at 08:34, wrote: > > A New Internet-Draft is available from the on-line Internet-Drafts > directories. > This draft is a work item of the Multipath TCP of the IETF. > > Title : TCP Extensions for Multipath Operation with > Multiple Addresses > Authors : Alan Ford > Costin Raiciu > Mark Handley > Olivier Bonaventure > Christoph Paasch > Filename : draft-ietf-mptcp-rfc6824bis-06.txt > Pages : 72 > Date : 2016-07-06 > > Abstract: > TCP/IP communication is currently restricted to a single path per > connection, yet multiple paths often exist between peers. The > simultaneous use of these multiple paths for a TCP/IP session would > improve resource usage within the network and, thus, improve user > experience through higher throughput and improved resilience to > network failure. > > Multipath TCP provides the ability to simultaneously use multiple > paths between peers. This document presents a set of extensions to > traditional TCP to support multipath operation. The protocol offers > the same type of service to applications as TCP (i.e., reliable > bytestream), and it provides the components necessary to establish > and use multiple TCP flows across potentially disjoint paths. > > This document specifies v1 of Multipath TCP, obsoleting v0 as > specified in RFC6824 [RFC6824] through clarifications and > modifications primarily driven by deployment experience. > > > The IETF datatracker status page for this draft is: > https://datatracker.ietf.org/doc/draft-ietf-mptcp-rfc6824bis/ > > There's also a htmlized version available at: > https://tools.ietf.org/html/draft-ietf-mptcp-rfc6824bis-06 > > A diff from the previous version is available at: > https://www.ietf.org/rfcdiff?url2=draft-ietf-mptcp-rfc6824bis-06 > > > Please note that it may take a couple of minutes from the time of > submission > until the htmlized version and diff are available at tools.ietf.org. > > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ > > _______________________________________________ > multipathtcp mailing list > multipathtcp@ietf.org > https://www.ietf.org/mailman/listinfo/multipathtcp > --001a1147c3aee3debe0536f2a56a Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi all,

There are no significant change= s in this version, just revving the draft and absorbing some experimental o= ption text re IANA considerations which we had missed from the previous rev= ision (thanks, Med).

Any significant changes re pr= oxies etc are for discussion in Berlin.

Best regar= ds,
Alan

On 6 July 2016 at 08:34, <internet-drafts@ietf.org> wrote:

A New Internet-Draft is available from the on-line Internet-Drafts director= ies.
This draft is a work item of the Multipath TCP of the IETF.

=C2=A0 =C2=A0 =C2=A0 =C2=A0 Title=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0:= TCP Extensions for Multipath Operation with Multiple Addresses
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Authors=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0: Alan= Ford
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 Costin Raiciu
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 Mark Handley
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 Olivier Bonaventure
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 Christoph Paasch
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Filename=C2=A0 =C2=A0 =C2=A0 =C2=A0 : draft-iet= f-mptcp-rfc6824bis-06.txt
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Pages=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0:= 72
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Date=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 := 2016-07-06

Abstract:
=C2=A0 =C2=A0TCP/IP communication is currently restricted to a single path = per
=C2=A0 =C2=A0connection, yet multiple paths often exist between peers.=C2= =A0 The
=C2=A0 =C2=A0simultaneous use of these multiple paths for a TCP/IP session = would
=C2=A0 =C2=A0improve resource usage within the network and, thus, improve u= ser
=C2=A0 =C2=A0experience through higher throughput and improved resilience t= o
=C2=A0 =C2=A0network failure.

=C2=A0 =C2=A0Multipath TCP provides the ability to simultaneously use multi= ple
=C2=A0 =C2=A0paths between peers.=C2=A0 This document presents a set of ext= ensions to
=C2=A0 =C2=A0traditional TCP to support multipath operation.=C2=A0 The prot= ocol offers
=C2=A0 =C2=A0the same type of service to applications as TCP (i.e., reliabl= e
=C2=A0 =C2=A0bytestream), and it provides the components necessary to estab= lish
=C2=A0 =C2=A0and use multiple TCP flows across potentially disjoint paths.<= br>
=C2=A0 =C2=A0This document specifies v1 of Multipath TCP, obsoleting v0 as<= br> =C2=A0 =C2=A0specified in RFC6824 [RFC6824] through clarifications and
=C2=A0 =C2=A0modifications primarily driven by deployment experience.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-= ietf-mptcp-rfc6824bis/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-mp= tcp-rfc6824bis-06

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2= =3Ddraft-ietf-mptcp-rfc6824bis-06


Please note that it may take a couple of minutes from the time of submissio= n
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

_______________________________________________
multipathtcp mailing list
multipathtcp@ietf.org
https://www.ietf.org/mailman/listinfo/multipathtcp=

--001a1147c3aee3debe0536f2a56a-- From nobody Fri Jul 8 00:32:04 2016 Return-Path: X-Original-To: multipathtcp@ietf.org Delivered-To: multipathtcp@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 8261412D0EC; Fri, 8 Jul 2016 00:32:02 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: X-Test-IDTracker: no X-IETF-IDTracker: 6.25.1 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20160708073202.32160.35022.idtracker@ietfa.amsl.com> Date: Fri, 08 Jul 2016 00:32:02 -0700 Archived-At: Cc: multipathtcp@ietf.org Subject: [multipathtcp] I-D Action: draft-ietf-mptcp-experience-05.txt X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Jul 2016 07:32:02 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Multipath TCP of the IETF. Title : Use Cases and Operational Experience with Multipath TCP Authors : Olivier Bonaventure Christoph Paasch Gregory Detal Filename : draft-ietf-mptcp-experience-05.txt Pages : 35 Date : 2016-07-08 Abstract: This document discusses both use cases and operational experience with Multipath TCP in real world networks. It lists several prominent use cases for which Multipath TCP has been considered and is being used. It also gives insight to some heuristics and decisions that have helped to realize these use cases. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-mptcp-experience/ There's also a htmlized version available at: https://tools.ietf.org/html/draft-ietf-mptcp-experience-05 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-mptcp-experience-05 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Fri Jul 8 08:36:54 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7D6C112D11E for ; Fri, 8 Jul 2016 08:36:52 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.32 X-Spam-Level: X-Spam-Status: No, score=-4.32 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=uclouvain.be Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id uIVlIvyKCh7C for ; Fri, 8 Jul 2016 08:36:48 -0700 (PDT) Received: from smtp2.sgsi.ucl.ac.be (smtp.sgsi.ucl.ac.be [130.104.5.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 139D112D612 for ; Fri, 8 Jul 2016 08:36:47 -0700 (PDT) Received: from [130.104.228.63] (unknown [130.104.228.63]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: duchenef@smtp2.sgsi.ucl.ac.be) by smtp2.sgsi.ucl.ac.be (Postfix) with ESMTPSA id C69F667DB34 for ; Fri, 8 Jul 2016 17:36:38 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 smtp2.sgsi.ucl.ac.be C69F667DB34 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=uclouvain.be; s=selucl; t=1467992199; bh=ic4bctdGJAEesFQaqoz+94Or5qGCjAojMItmFkdvahY=; h=Subject:References:To:From:Date:In-Reply-To; b=GP29zQReIa3D56oCvOZlSZ1GtmQyIGqduS6Zoyb0aNiSz8zOH15JRJhDRHLpbMI4g JwMwJMAJv/bnU+jWIs7M4J/CEtmniZAq1KyATXesFs/DIZo1vWdUAvPLBQukRh8Z2t mTvkZoqt0qlYngDXBh9/3r0TvfIakN0qEGPfvLHA= X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.99 at smtp-2 References: <20160708153425.32046.92545.idtracker@ietfa.amsl.com> To: multipathtcp@ietf.org From: =?UTF-8?Q?Fabien_Duch=c3=aane?= X-Forwarded-Message-Id: <20160708153425.32046.92545.idtracker@ietfa.amsl.com> Message-ID: <577FC9B1.9040507@uclouvain.be> Date: Fri, 8 Jul 2016 17:41:37 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.7.0 MIME-Version: 1.0 In-Reply-To: <20160708153425.32046.92545.idtracker@ietfa.amsl.com> Content-Type: multipart/alternative; boundary="------------000402000103000200090504" X-Sgsi-Spamcheck: SASL authenticated, X-SGSI-Information: X-SGSI-MailScanner-ID: C69F667DB34.A157C X-SGSI-MailScanner: Found to be clean X-SGSI-From: fabien.duchene@uclouvain.be X-SGSI-Spam-Status: No Archived-At: Subject: [multipathtcp] Fwd: New Version Notification for draft-duchene-mptcp-add-addr-00.txt X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Jul 2016 15:36:52 -0000 This is a multi-part message in MIME format. --------------000402000103000200090504 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Hello, This is our draft about the address advertisement that also cover the load balancing solution that we discussed during the last interim meeting. Cheers, Fabien -------- Forwarded Message -------- Subject: New Version Notification for draft-duchene-mptcp-add-addr-00.txt Date: Fri, 8 Jul 2016 08:34:25 -0700 From: internet-drafts@ietf.org To: Fabien Duchene , Olivier Bonaventure , Olivier Bonaventure A new version of I-D, draft-duchene-mptcp-add-addr-00.txt has been successfully submitted by Fabien Duchene and posted to the IETF repository. Name: draft-duchene-mptcp-add-addr Revision: 00 Title: Multipath TCP Address Advertisement Document date: 2016-07-08 Group: Individual Submission Pages: 13 URL: https://www.ietf.org/internet-drafts/draft-duchene-mptcp-add-addr-00.txt Status: https://datatracker.ietf.org/doc/draft-duchene-mptcp-add-addr/ Htmlized: https://tools.ietf.org/html/draft-duchene-mptcp-add-addr-00 Abstract: Multipath TCP [RFC6824] defines the ADD_ADDR option that allows a host to announce its addresses to the remote host. In this document we propose some improvements to this mechanism. Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. The IETF Secretariat --------------000402000103000200090504 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit Hello,

This is our draft about the address advertisement that also cover the load balancing solution that we discussed during the last interim meeting.

Cheers,

Fabien

-------- Forwarded Message --------
Subject: New Version Notification for draft-duchene-mptcp-add-addr-00.txt
Date: Fri, 8 Jul 2016 08:34:25 -0700
From: internet-drafts@ietf.org
To: Fabien Duchene <fabien.duchene@uclouvain.be>, Olivier Bonaventure <olivier.bonaventure@uclouvain.be>, Olivier Bonaventure <Olivier.Bonaventure@uclouvain.be> 


A new version of I-D, draft-duchene-mptcp-add-addr-00.txt
has been successfully submitted by Fabien Duchene and posted to the
IETF repository.

Name:		draft-duchene-mptcp-add-addr
Revision:	00
Title:		Multipath TCP Address Advertisement
Document date:	2016-07-08
Group:		Individual Submission
Pages:		13
URL:            https://www.ietf.org/internet-drafts/draft-duchene-mptcp-add-addr-00.txt
Status:         https://datatracker.ietf.org/doc/draft-duchene-mptcp-add-addr/
Htmlized:       https://tools.ietf.org/html/draft-duchene-mptcp-add-addr-00


Abstract:
   Multipath TCP [RFC6824] defines the ADD_ADDR option that allows a
   host to announce its addresses to the remote host.  In this document
   we propose some improvements to this mechanism.

                                                                                  


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

The IETF Secretariat


--------------000402000103000200090504-- From nobody Fri Jul 8 08:56:56 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6034712D5CE for ; Fri, 8 Jul 2016 08:56:54 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.321 X-Spam-Level: X-Spam-Status: No, score=-4.321 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=uclouvain.be Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id aFzeNJ5ZOWot for ; Fri, 8 Jul 2016 08:56:52 -0700 (PDT) Received: from smtp3.sgsi.ucl.ac.be (smtp.sgsi.ucl.ac.be [130.104.5.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 649D812D1B9 for ; Fri, 8 Jul 2016 08:56:52 -0700 (PDT) Received: from mbpobo.local (unknown [130.104.228.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: obonaventure@smtp3.sgsi.ucl.ac.be) by smtp3.sgsi.ucl.ac.be (Postfix) with ESMTPSA id 6770567DC7E; Fri, 8 Jul 2016 17:56:45 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 smtp3.sgsi.ucl.ac.be 6770567DC7E DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=uclouvain.be; s=selucl; t=1467993405; bh=ANrLfPYdp1pSFsLtpqOYUWtqvaAc6euEtYNHtsoLBHM=; h=Reply-To:To:From:Subject:Date; b=wRPE7CU3wwByvunWOgJL0M+mRTI2+sIizS+pzbo2IroFwvDrY298kk4QdGg68KeWP 18jPjtebHkOCPpRwQWKrjjQSJAo9ks8n6vR39PW6bNRnvpwD+Eo3acLQedbR6t3XhU aujz0oMGJWyjys4sm1K1aZ5UGvUKxc/dmXXxSbhg= X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.99 at smtp-3 To: multipathtcp , "" From: Olivier Bonaventure Message-ID: <13734f09-4c78-06eb-7201-8f125097a5e8@uclouvain.be> Date: Fri, 8 Jul 2016 17:56:45 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Sgsi-Spamcheck: SASL authenticated, X-SGSI-Information: X-SGSI-MailScanner-ID: 6770567DC7E.A3644 X-SGSI-MailScanner: Found to be clean X-SGSI-From: olivier.bonaventure@uclouvain.be X-SGSI-Spam-Status: No Archived-At: Subject: [multipathtcp] Socket API for MPTCP X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list Reply-To: Olivier.Bonaventure@uclouvain.be List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Jul 2016 15:56:54 -0000 Hello, During the last years, we have received on a regular basis questions from users of Multipath TCP on how they could control the utilisation of the subflows. In the Linux implementation, the default solution was to tune the path manager, but this is kernel code and few users actually managed to change this path manager. Benjamin Hesmans has spent some time to think about simple extensions to the socket API to allow applications to control the underlying Multipath TCP stack. He has implemented his ideas and has running code. A first draft describing his API has been submitted to the IETF : Title: A socket API to control Multipath TCP URL: https://www.ietf.org/internet-drafts/draft-hesmans-mptcp-socket-00.txt Abstract: This document proposes an enhanced socket API to allow applications to control the operation of a Multipath TCP stack. A related paper will also appear at the ANR workshop : https://irtf.org/anrw/2016/anrw16-final16.pdf We have requested a slot to present in Berlin. We expect that agreeing on a common socket API exposed by Multipath TCP implementations would help its end-to-end deployment. Olivier and Benjamin From nobody Sun Jul 10 00:43:50 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 341A812B054 for ; Sun, 10 Jul 2016 00:43:49 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.321 X-Spam-Level: X-Spam-Status: No, score=-4.321 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=uclouvain.be Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id hSWUU6FNoENg for ; Sun, 10 Jul 2016 00:43:46 -0700 (PDT) Received: from smtp1.sgsi.ucl.ac.be (smtp.sgsi.ucl.ac.be [130.104.5.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id AE69512B040 for ; Sun, 10 Jul 2016 00:43:46 -0700 (PDT) Received: from mbpobo.local (host-78-129-6-94.dynamic.voo.be [78.129.6.94]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: obonaventure@smtp1.sgsi.ucl.ac.be) by smtp1.sgsi.ucl.ac.be (Postfix) with ESMTPSA id 0BD7E67DA9E for ; Sun, 10 Jul 2016 09:43:35 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 smtp1.sgsi.ucl.ac.be 0BD7E67DA9E DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=uclouvain.be; s=selucl; t=1468136615; bh=IingHhOK0isIrY5e269UVfdnvvZP1mjfaz7+Irheyik=; h=Subject:Reply-To:References:To:From:Date:In-Reply-To; b=EOKCs36Tz15pSSkgXrsPwCdnvxPcoXGiOuElBYHEwXFy5BXiSLdFzJFt/vQxCCyPa c/Q71bZryilQLRCA8nJ2HFgu1x5ubscfHnTgpsCNDKTn4xeP0ND7gDGKc+Nb2Mtoxv r871HP53nTG8Era6EScxvreeSfK5kCwq5t8s0ytQ= X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.99 at smtp-1 References: <20160708142658.32099.23808.idtracker@ietfa.amsl.com> To: multipathtcp From: Olivier Bonaventure X-Forwarded-Message-Id: <20160708142658.32099.23808.idtracker@ietfa.amsl.com> Message-ID: <7ff14c05-6a33-c05d-d8c5-7b60277e5ddb@uclouvain.be> Date: Sun, 10 Jul 2016 09:43:34 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 MIME-Version: 1.0 In-Reply-To: <20160708142658.32099.23808.idtracker@ietfa.amsl.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Sgsi-Spamcheck: SASL authenticated, X-SGSI-Information: X-SGSI-MailScanner-ID: 0BD7E67DA9E.A8F2A X-SGSI-MailScanner: Found to be clean X-SGSI-From: olivier.bonaventure@uclouvain.be X-SGSI-Spam-Status: No Archived-At: Subject: [multipathtcp] Fwd: New Version Notification for draft-hesmans-mptcp-socket-00.txt X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list Reply-To: Olivier.Bonaventure@uclouvain.be List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 10 Jul 2016 07:43:49 -0000 FYI, A new version of I-D, draft-hesmans-mptcp-socket-00.txt has been successfully submitted by Benjamin Hesmans and posted to the IETF repository. Name: draft-hesmans-mptcp-socket Revision: 00 Title: A socket API to control Multipath TCP Document date: 2016-07-06 Group: Individual Submission Pages: 13 URL: https://www.ietf.org/internet-drafts/draft-hesmans-mptcp-socket-00.txt Status: https://datatracker.ietf.org/doc/draft-hesmans-mptcp-socket/ Htmlized: https://tools.ietf.org/html/draft-hesmans-mptcp-socket-00 Abstract: This document proposes an enhanced socket API to allow applications to control the operation of a Multipath TCP stack. From nobody Sun Jul 10 04:40:57 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 76AD812D130 for ; Sun, 10 Jul 2016 04:40:56 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.9 X-Spam-Level: X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id IaFaGHPNT5zN for ; Sun, 10 Jul 2016 04:40:54 -0700 (PDT) Received: from korolev.univ-paris7.fr (korolev.univ-paris7.fr [IPv6:2001:660:3301:8000::1:2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 6313D12D0F4 for ; Sun, 10 Jul 2016 04:40:54 -0700 (PDT) Received: from mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [81.194.30.253]) by korolev.univ-paris7.fr (8.14.4/8.14.4/relay1/56228) with ESMTP id u6ABeqsu026619; Sun, 10 Jul 2016 13:40:52 +0200 Received: from mailhub.math.univ-paris-diderot.fr (localhost [127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTP id 1F2A061F9D; Sun, 10 Jul 2016 13:40:52 +0200 (CEST) X-Virus-Scanned: amavisd-new at math.univ-paris-diderot.fr Received: from mailhub.math.univ-paris-diderot.fr ([127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id y_GSSczdWUFq; Sun, 10 Jul 2016 13:40:50 +0200 (CEST) Received: from trurl.pps.univ-paris-diderot.fr (col75-1-78-194-40-74.fbxo.proxad.net [78.194.40.74]) (Authenticated sender: jch) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTPSA id 254EF61FA2; Sun, 10 Jul 2016 13:40:49 +0200 (CEST) Date: Sun, 10 Jul 2016 13:40:49 +0200 Message-ID: <8760sdhgam.wl-jch@pps.univ-paris-diderot.fr> From: Juliusz Chroboczek To: Olivier.Bonaventure@uclouvain.be In-Reply-To: <13734f09-4c78-06eb-7201-8f125097a5e8@uclouvain.be> References: <13734f09-4c78-06eb-7201-8f125097a5e8@uclouvain.be> User-Agent: Wanderlust/2.15.9 MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (korolev.univ-paris7.fr [194.254.61.138]); Sun, 10 Jul 2016 13:40:52 +0200 (CEST) X-Miltered: at korolev with ID 57823444.000 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-j-chkmail-Enveloppe: 57823444.000 from mailhub.math.univ-paris-diderot.fr/mailhub.math.univ-paris-diderot.fr/null/mailhub.math.univ-paris-diderot.fr/ X-j-chkmail-Score: MSGID : 57823444.000 on korolev.univ-paris7.fr : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-j-chkmail-Status: Ham Archived-At: Cc: multipathtcp , "" Subject: Re: [multipathtcp] Socket API for MPTCP X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 10 Jul 2016 11:40:56 -0000 > https://www.ietf.org/internet-drafts/draft-hesmans-mptcp-socket-00.txt Hi Olivier, I've only had a quick look at the draft, and haven't read the paper, so I could get this wrong. I don't see a way to receive asynchronous notifications of subflow creation and destruction. If my application is using a select-based event loop, there is apparently no way to request that the select should be interrupted when a new flow is created. Is that correct? -- Juliusz From nobody Sun Jul 10 05:18:44 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 59B9912D162 for ; Sun, 10 Jul 2016 05:18:43 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.321 X-Spam-Level: X-Spam-Status: No, score=-4.321 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=uclouvain.be Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8JYT5A8ACgro for ; Sun, 10 Jul 2016 05:18:42 -0700 (PDT) Received: from smtp1.sgsi.ucl.ac.be (smtp.sgsi.ucl.ac.be [130.104.5.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id EAA3412D15E for ; Sun, 10 Jul 2016 05:18:41 -0700 (PDT) Received: from mbpobo.local (host-78-129-6-94.dynamic.voo.be [78.129.6.94]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: obonaventure@smtp1.sgsi.ucl.ac.be) by smtp1.sgsi.ucl.ac.be (Postfix) with ESMTPSA id 9B00D67DA66; Sun, 10 Jul 2016 14:18:33 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 smtp1.sgsi.ucl.ac.be 9B00D67DA66 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=uclouvain.be; s=selucl; t=1468153113; bh=GMGZqcvbbdVV+1irDmz4zrYfJGq7d7n+geia4+U9thY=; h=Reply-To:Subject:References:To:Cc:From:Date:In-Reply-To; b=itk0bSXoEJQFHh9ZHZwewOc7SRSfLo3k88sR7jRPn0CmEhoMgbeatdYyEI+EUm66f g4xvdnLe2c0MEhOearAzk8wjeSL+AMVy3cC57YtC5ILIV0ljmQCaX1BYjSPh4jXn2A tFBv2U7bwLZ1EkH4+3H9c49o2K9GLsAV2MrLuadE= X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.99 at smtp-1 References: <13734f09-4c78-06eb-7201-8f125097a5e8@uclouvain.be> <8760sdhgam.wl-jch@pps.univ-paris-diderot.fr> To: Juliusz Chroboczek From: Olivier Bonaventure Message-ID: <80651913-f4fd-f439-0661-518115339a42@uclouvain.be> Date: Sun, 10 Jul 2016 14:18:33 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 MIME-Version: 1.0 In-Reply-To: <8760sdhgam.wl-jch@pps.univ-paris-diderot.fr> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Sgsi-Spamcheck: SASL authenticated, X-SGSI-Information: X-SGSI-MailScanner-ID: 9B00D67DA66.A27A6 X-SGSI-MailScanner: Found to be clean X-SGSI-From: olivier.bonaventure@uclouvain.be X-SGSI-Spam-Status: No Archived-At: Cc: multipathtcp , "" Subject: Re: [multipathtcp] Socket API for MPTCP X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list Reply-To: Olivier.Bonaventure@uclouvain.be List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 10 Jul 2016 12:18:43 -0000 Juliusz, > > I've only had a quick look at the draft, and haven't read the paper, so > I could get this wrong. > > I don't see a way to receive asynchronous notifications of subflow > creation and destruction. If my application is using a select-based event > loop, there is apparently no way to request that the select should be > interrupted when a new flow is created. > > Is that correct? The first draft does not yet describe how to support notifications. Benjamin is finalising the implementation of these notifications, currently on top of recvmsg and sendmsg. We will then look at select. These notifications will be documented in the next version of the draft. Olivier From nobody Sun Jul 10 05:21:14 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CE2BC12B037 for ; Sun, 10 Jul 2016 05:21:12 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.9 X-Spam-Level: X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id FnFazqQ3x-bg for ; Sun, 10 Jul 2016 05:21:11 -0700 (PDT) Received: from korolev.univ-paris7.fr (korolev.univ-paris7.fr [IPv6:2001:660:3301:8000::1:2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 799B212B006 for ; Sun, 10 Jul 2016 05:21:11 -0700 (PDT) Received: from potemkin.univ-paris7.fr (potemkin.univ-paris7.fr [IPv6:2001:660:3301:8000::1:1]) by korolev.univ-paris7.fr (8.14.4/8.14.4/relay1/56228) with ESMTP id u6ACL924014282 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Sun, 10 Jul 2016 14:21:09 +0200 Received: from mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [81.194.30.253]) by potemkin.univ-paris7.fr (8.14.4/8.14.4/relay2/56228) with ESMTP id u6ACL8Rp001163; Sun, 10 Jul 2016 14:21:09 +0200 Received: from mailhub.math.univ-paris-diderot.fr (localhost [127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTP id B200261F9D; Sun, 10 Jul 2016 14:21:08 +0200 (CEST) X-Virus-Scanned: amavisd-new at math.univ-paris-diderot.fr Received: from mailhub.math.univ-paris-diderot.fr ([127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id LIgpQgeVgoNA; Sun, 10 Jul 2016 14:21:07 +0200 (CEST) Received: from trurl.pps.univ-paris-diderot.fr (col75-1-78-194-40-74.fbxo.proxad.net [78.194.40.74]) (Authenticated sender: jch) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTPSA id 88D8161FA1; Sun, 10 Jul 2016 14:21:06 +0200 (CEST) Date: Sun, 10 Jul 2016 14:21:06 +0200 Message-ID: <874m7xhefh.wl-jch@pps.univ-paris-diderot.fr> From: Juliusz Chroboczek To: Olivier.Bonaventure@uclouvain.be In-Reply-To: <80651913-f4fd-f439-0661-518115339a42@uclouvain.be> References: <13734f09-4c78-06eb-7201-8f125097a5e8@uclouvain.be> <8760sdhgam.wl-jch@pps.univ-paris-diderot.fr> <80651913-f4fd-f439-0661-518115339a42@uclouvain.be> User-Agent: Wanderlust/2.15.9 MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (korolev.univ-paris7.fr [IPv6:2001:660:3301:8000::1:2]); Sun, 10 Jul 2016 14:21:09 +0200 (CEST) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (potemkin.univ-paris7.fr [194.254.61.141]); Sun, 10 Jul 2016 14:21:09 +0200 (CEST) X-Miltered: at korolev with ID 57823DB5.00A by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-Miltered: at potemkin with ID 57823DB4.008 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-j-chkmail-Enveloppe: 57823DB5.00A from potemkin.univ-paris7.fr/potemkin.univ-paris7.fr/null/potemkin.univ-paris7.fr/ X-j-chkmail-Enveloppe: 57823DB4.008 from mailhub.math.univ-paris-diderot.fr/mailhub.math.univ-paris-diderot.fr/null/mailhub.math.univ-paris-diderot.fr/ X-j-chkmail-Score: MSGID : 57823DB5.00A on korolev.univ-paris7.fr : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-j-chkmail-Score: MSGID : 57823DB4.008 on potemkin.univ-paris7.fr : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-j-chkmail-Status: Ham X-j-chkmail-Status: Ham Archived-At: Cc: multipathtcp , "" Subject: Re: [multipathtcp] Socket API for MPTCP X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 10 Jul 2016 12:21:13 -0000 > The first draft does not yet describe how to support > notifications. Benjamin is finalising the implementation of these > notifications, currently on top of recvmsg and sendmsg. We will then > look at select. These notifications will be documented in the next > version of the draft. Excellent, thanks. -- Juliusz From nobody Mon Jul 11 02:57:41 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 67752127071 for ; Mon, 11 Jul 2016 02:57:40 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.487 X-Spam-Level: X-Spam-Status: No, score=-5.487 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-1.287] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9yLRZtftv-m2 for ; Mon, 11 Jul 2016 02:57:38 -0700 (PDT) Received: from bells2.cs.ucl.ac.uk (bells2.cs.ucl.ac.uk [128.16.5.33]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 7EEEA12B040 for ; Mon, 11 Jul 2016 02:57:25 -0700 (PDT) Received: from wlan.dagstuhl.de ([192.76.146.51] helo=[192.168.12.140]) by bells2.cs.ucl.ac.uk with esmtpsa (TLSv1:AES256-SHA:256) (C.Raiciu authenticated) (Exim 4.54) id 1bMXxn-0005Up-RG for multipathtcp@ietf.org; Mon, 11 Jul 2016 10:57:19 +0100 From: Costin Raiciu Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Message-Id: Date: Mon, 11 Jul 2016 11:57:25 +0200 To: multipathtcp Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-Mailer: Apple Mail (2.2104) Archived-At: Subject: [multipathtcp] Load balancer design for MPTCP - Internet draft X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Jul 2016 09:57:40 -0000 Dear all, We=E2=80=99ve submitted a draft that details two possible load balancer = designs for MPTCP. https://datatracker.ietf.org/doc/draft-olteanu-mptcp-loadbalance/ Best. Costin= From nobody Mon Jul 11 04:35:35 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EA04712D0DC for ; Mon, 11 Jul 2016 04:35:33 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.321 X-Spam-Level: X-Spam-Status: No, score=-4.321 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=uclouvain.be Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id GDgdMaSODrtx for ; Mon, 11 Jul 2016 04:35:31 -0700 (PDT) Received: from smtp1.sgsi.ucl.ac.be (smtp.sgsi.ucl.ac.be [130.104.5.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C4B4012D0AD for ; Mon, 11 Jul 2016 04:35:31 -0700 (PDT) Received: from mbpobo.local (wlan.dagstuhl.de [192.76.146.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: obonaventure@smtp1.sgsi.ucl.ac.be) by smtp1.sgsi.ucl.ac.be (Postfix) with ESMTPSA id 09D4E67DA2C for ; Mon, 11 Jul 2016 13:35:23 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 smtp1.sgsi.ucl.ac.be 09D4E67DA2C DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=uclouvain.be; s=selucl; t=1468236923; bh=c/yzXSAfMInOOnhHxRDPimgFuloy+WMENGYhN02HH+s=; h=Subject:References:To:From:Reply-To:Date:In-Reply-To; b=KlV1jChI13Hw+MMX56vW4pHNKq0LCrJPHPCKvCIdq0DPSfDkP/YlYr1TquaXiXdYy eZ55QYmX6wMRXnik4PfGKbkaN3K7v7j/eYCeV8bRWeMgkMwk9kQ5W1qkkfm8NS6wcz NG0st6jEP63oi0EgmebIAeUYenHz7DOk/r0UfWbY= X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.99 at smtp-1 References: <20160708153405.32042.62736.idtracker@ietfa.amsl.com> To: multipathtcp From: Olivier Bonaventure X-Forwarded-Message-Id: <20160708153405.32042.62736.idtracker@ietfa.amsl.com> Message-ID: Date: Mon, 11 Jul 2016 13:35:22 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 MIME-Version: 1.0 In-Reply-To: <20160708153405.32042.62736.idtracker@ietfa.amsl.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Sgsi-Spamcheck: SASL authenticated, X-SGSI-Information: X-SGSI-MailScanner-ID: 09D4E67DA2C.AAD19 X-SGSI-MailScanner: Found to be clean X-SGSI-From: olivier.bonaventure@uclouvain.be X-SGSI-Spam-Status: No Archived-At: Subject: [multipathtcp] Fwd: New Version Notification for draft-peirens-mptcp-transparent-00.txt X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list Reply-To: Olivier.Bonaventure@uclouvain.be List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Jul 2016 11:35:34 -0000 FYI, This draft documents the transparent Multipath TCP mode that is well adapted for hybrid access networks that combine fixed networks (e.g. xDSL) and wireless (e.g. LTE). Name: draft-peirens-mptcp-transparent Revision: 00 Title: Link bonding with transparent Multipath TCP Document date: 2016-07-05 Group: Individual Submission Pages: 21 URL: https://www.ietf.org/internet-drafts/draft-peirens-mptcp-transparent-00.txt Abstract: This document describes the utilisation of the transparent Multipath TCP mode to enable network operators to provide link bonding services in hybrid access networks. Olivier From nobody Mon Jul 11 04:45:01 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 53BF012D108 for ; Mon, 11 Jul 2016 04:44:59 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.321 X-Spam-Level: X-Spam-Status: No, score=-4.321 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=uclouvain.be Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id M57bWyK2lG8y for ; Mon, 11 Jul 2016 04:44:57 -0700 (PDT) Received: from smtp4.sgsi.ucl.ac.be (smtp.sgsi.ucl.ac.be [130.104.5.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C0A7A12B056 for ; Mon, 11 Jul 2016 04:44:57 -0700 (PDT) Received: from mbpobo.local (wlan.dagstuhl.de [192.76.146.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: obonaventure@smtp4.sgsi.ucl.ac.be) by smtp4.sgsi.ucl.ac.be (Postfix) with ESMTPSA id DCFF667DAE8 for ; Mon, 11 Jul 2016 13:44:50 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 smtp4.sgsi.ucl.ac.be DCFF667DAE8 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=uclouvain.be; s=selucl; t=1468237491; bh=Eua5r2RL8yI8/OjPAm5qzhpExLpoxo5MBAlJoJasask=; h=Subject:Reply-To:References:To:From:Date:In-Reply-To; b=sRleefU07Sv2rH/+gzWCmxOpzVEoQgMrN/b+QnjsdQLC5r1ztZ29UWh28TdadyDiF i0GSv87LnUHJhWOXJ7ZsOqiBu1199ytveDxsXvlZDYDYEQE8u3n7oDS82vgR8/NQyZ heg17oYhVn35l9m/pWfzLK62kdSAsi7sAPEXDTQc= X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.99 at smtp-4 References: <20160708153425.32046.92545.idtracker@ietfa.amsl.com> To: multipathtcp From: Olivier Bonaventure X-Forwarded-Message-Id: <20160708153425.32046.92545.idtracker@ietfa.amsl.com> Message-ID: <31308e25-f968-443c-2839-c5ddda22f2fa@uclouvain.be> Date: Mon, 11 Jul 2016 13:44:50 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 MIME-Version: 1.0 In-Reply-To: <20160708153425.32046.92545.idtracker@ietfa.amsl.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Sgsi-Spamcheck: SASL authenticated, X-SGSI-Information: X-SGSI-MailScanner-ID: DCFF667DAE8.A8083 X-SGSI-MailScanner: Found to be clean X-SGSI-From: olivier.bonaventure@uclouvain.be X-SGSI-Spam-Status: No Archived-At: Subject: [multipathtcp] Fwd: New Version Notification for draft-duchene-mptcp-add-addr-00.txt X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list Reply-To: Olivier.Bonaventure@uclouvain.be List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Jul 2016 11:44:59 -0000 FYI, This draft describes several issues related to the advertisement of addresses in Multipath TCP and explains the bit proposed during the load balancing discussion at the interim meeting A new version of I-D, draft-duchene-mptcp-add-addr-00.txt has been successfully submitted by Fabien Duchene and posted to the IETF repository. Name: draft-duchene-mptcp-add-addr Revision: 00 Title: Multipath TCP Address Advertisement Document date: 2016-07-08 Group: Individual Submission Pages: 13 URL: https://www.ietf.org/internet-drafts/draft-duchene-mptcp-add-addr-00.txt Abstract: Multipath TCP [RFC6824] defines the ADD_ADDR option that allows a host to announce its addresses to the remote host. In this document we propose some improvements to this mechanism. From nobody Mon Jul 11 11:02:47 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 17B8812D623 for ; Mon, 11 Jul 2016 11:02:45 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.187 X-Spam-Level: X-Spam-Status: No, score=-3.187 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0OKRM0dyoSjM for ; Mon, 11 Jul 2016 11:02:43 -0700 (PDT) Received: from mail.sfc.wide.ad.jp (shonan.sfc.wide.ad.jp [203.178.142.130]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 2B8BD12D5E7 for ; Mon, 11 Jul 2016 11:02:42 -0700 (PDT) Received: from mail-vk0-f41.google.com (mail-vk0-f41.google.com [209.85.213.41]) by mail.sfc.wide.ad.jp (Postfix) with ESMTPSA id D69CD27830B for ; Tue, 12 Jul 2016 03:02:40 +0900 (JST) Received: by mail-vk0-f41.google.com with SMTP id o63so66839368vkg.1 for ; Mon, 11 Jul 2016 11:02:40 -0700 (PDT) X-Gm-Message-State: ALyK8tLecX4XvJTb8XBbcBkId0dJ6o/3S9d9pcnidRDvIcIHYYJIEGujh3jkHsKgKuywLRGVuHoWh89M3zMVBg== X-Received: by 10.31.228.133 with SMTP id b127mr9834010vkh.90.1468260159393; Mon, 11 Jul 2016 11:02:39 -0700 (PDT) MIME-Version: 1.0 Received: by 10.176.69.136 with HTTP; Mon, 11 Jul 2016 11:02:39 -0700 (PDT) From: Yoshifumi Nishida Date: Mon, 11 Jul 2016 11:02:39 -0700 X-Gmail-Original-Message-ID: Message-ID: To: multipathtcp Content-Type: multipart/alternative; boundary=94eb2c094fb83d474505375ff57b Archived-At: Subject: [multipathtcp] draft agenda for Berlin meeting X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Jul 2016 18:02:45 -0000 --94eb2c094fb83d474505375ff57b Content-Type: text/plain; charset=UTF-8 Hi folks, Phil and I have put a preliminary agenda for the Berling meeting on the following URL. https://tools.ietf.org/wg/mptcp/agenda If you have questions or suggestions, please let us know. In the Berlin meeting, we are planning to have a discussion on bumping version number as we would like to finalize 6824bis draft. So, if you are interested, please prepare your opinion for the meeting or send comments to the ML. FYI, I have put a brief summary for the current discussion points. https://mailarchive.ietf.org/arch/msg/multipathtcp/KQDF5rXQWP1sCGqATTDcw2GecGc Thanks, -- Yoshi & Phil --94eb2c094fb83d474505375ff57b Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi folks,

Phil and I have pu= t a preliminary agenda for the Berling meeting on the following URL.
<= div>
https://to= ols.ietf.org/wg/mptcp/agenda

If you have questio= ns or suggestions, please let us know.

In the Berl= in meeting, we are planning to have a discussion on bumping version number = as we would like to finalize 6824bis draft.
So, if you are intere= sted, please prepare your opinion for the meeting or send comments to the M= L.

FYI, I have put a brief summary for the current= discussion points.

Thanks,
--
Yoshi & Phil



--94eb2c094fb83d474505375ff57b-- From nobody Mon Jul 11 11:41:34 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5BC6612D658 for ; Mon, 11 Jul 2016 11:41:33 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.589 X-Spam-Level: X-Spam-Status: No, score=-5.589 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=apple.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Nqv8zBwN2OG3 for ; Mon, 11 Jul 2016 11:41:32 -0700 (PDT) Received: from mail-in4.apple.com (mail-out4.apple.com [17.151.62.26]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 9C50C12D61A for ; 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Mon, 11 Jul 2016 11:41:31 -0700 (PDT) X-AuditID: 11973e12-f79b16d000001d09-bb-5783e85bbac6 Received: from nwk-mmpp-sz13.apple.com (nwk-mmpp-sz13.apple.com [17.128.115.216]) (using TLS with cipher DHE-RSA-AES128-SHA (128/128 bits)) (Client did not present a certificate) by relay6.apple.com (Apple SCV relay) with SMTP id 21.44.31551.A58E3875; Mon, 11 Jul 2016 11:41:31 -0700 (PDT) Received: from rui-imac.apple.com (rui-imac.apple.com [17.226.22.1]) by nwk-mmpp-sz13.apple.com (Oracle Communications Messaging Server 7.0.5.35.0 64bit (built Mar 31 2015)) with ESMTPSA id <0OA500DPDYL6K220@nwk-mmpp-sz13.apple.com> for multipathtcp@ietf.org; Mon, 11 Jul 2016 11:41:30 -0700 (PDT) Sender: rpaulo@apple.com Content-type: text/plain; charset=utf-8 MIME-version: 1.0 (Mac OS X Mail 10.0 \(3201\)) From: Rui Paulo In-reply-to: <80651913-f4fd-f439-0661-518115339a42@uclouvain.be> Date: Mon, 11 Jul 2016 11:41:30 -0700 Content-transfer-encoding: quoted-printable Message-id: References: <13734f09-4c78-06eb-7201-8f125097a5e8@uclouvain.be> <8760sdhgam.wl-jch@pps.univ-paris-diderot.fr> <80651913-f4fd-f439-0661-518115339a42@uclouvain.be> To: Olivier.Bonaventure@uclouvain.be X-Mailer: Apple Mail (2.3201) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrHLMWRmVeSWpSXmKPExsUi2FAYpRv9ojncYGWblMXn1dfZHBg9liz5 yRTAGMVlk5Kak1mWWqRvl8CVMWP7f/aCs8wV1/4uYm1g/MDUxcjJISFgIrHiXwMrhC0mceHe erYuRi4OIYG9jBLPPz1khyn6M+UnE0RiOZPEtnPLWCCcjUwSB7segLULC0hI7D8J0sHBwSyg LjFlSi5ImFdAX6L/0z2oEgOJazP2gm1mE1CSeNZ3AmwBp4CDxP+HbxhBbBYBVYnzs++CLWMW WMwo8ahjJVgDs4C2xJN3F1ghhtpITHu7GKxBSGApo8SUpRwgtoiAisTkvufMEFfLSjx59JkV ZJCEQCObxIaeaawTGEVmIdw3C8l9s5CsWMDIvIpRKDcxM0c3M89EL7GgICdVLzk/dxMjKMCn 2wntYDy1yuoQowAHoxIP74PTzeFCrIllxZW5hxilOViUxHlPH24MFxJITyxJzU5NLUgtii8q zUktPsTIxMEp1cCYvnty1E7eW4dlP9uzJ5s91bJcczfb4+93Bx8XqeNBtr9TM804j5ku599l yZmeW8x7deU6yQt2qdbOqzdMqz7DPcnz61bWy1sOlIrltDOZcVT4ygVY8AtVzOJvWNxUpBxo vUZsToFB1+qFMbfPzHvytYvD6tby1KfOCb1NjIHhcxhbPdvvrVZiKc5INNRiLipOBACvoiRG UQIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrILMWRmVeSWpSXmKPExsUi2FB8Qzf6RXO4wdEjrBafV19nc2D0WLLk J1MAYxSXTUpqTmZZapG+XQJXxozt/9kLzjJXXPu7iLWB8QNTFyMnh4SAicSfKT+hbDGJC/fW s3UxcnEICSxnkth2bhkLhLORSeJg1wNWkCphAQmJ/ScfsncxcnAwC6hLTJmSCxLmFdCX6P90 D6rEQOLajL1gQ9kElCSe9Z1gB7E5BRwk/j98wwhiswioSpyffZcJZD6zwGJGiUcdK8EamAW0 JZ68u8AKMdRGYtrbxWANQgJLGSWmLOUAsUUEVCQm9z1nhrhaVuLJo8+sExgFZyGcNAvJSbOQ TF3AyLyKUaAoNSex0kwvsaAgJ1UvOT93EyM4IAujdjA2LLc6xCjAwajEw/vgdHO4EGtiWXFl 7iFGCQ5mJRHeyU+BQrwpiZVVqUX58UWlOanFhxilOViUxHlV8xvDhQTSE0tSs1NTC1KLYLJM HJxSDYxmPQkBLceCD8cHRB91Cnqkcrhgy6XEh3H6fhOPeiSWe7Avq1n58ann8bh5n9ewti06 fuPQpQXC5zYZ3Nrn2J70ZGa5+M0bf6e8P6ssP3XXRftLqjujd8iflw9nldX3V2t+w3AjYoEP P8e1TbsONKh8kt8/T14nXO3Tv8PaunYqzLtuutaf745WYinOSDTUYi4qTgQAl4LRwUQCAAA= Archived-At: Cc: multipathtcp , "" Subject: Re: [multipathtcp] Socket API for MPTCP X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Jul 2016 18:41:33 -0000 On Jul 10, 2016, at 05:18, Olivier Bonaventure = wrote: >=20 > We will then look at select. These notifications will be documented in = the next version of the draft. Does it make sense to talk about kqueue-style notifications in the = draft? Some operating systems have notification mechanisms that can be = extended to support MPTCP events in a way that=E2=80=99s cleaner than = select(). -- Rui Paulo From nobody Wed Jul 13 17:38:40 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5B3A012DA5B for ; Wed, 13 Jul 2016 17:38:38 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.699 X-Spam-Level: X-Spam-Status: No, score=-2.699 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NpiQEyjsx39I for ; Wed, 13 Jul 2016 17:38:37 -0700 (PDT) Received: from mail-vk0-x22b.google.com (mail-vk0-x22b.google.com [IPv6:2607:f8b0:400c:c05::22b]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id F142C12DA55 for ; Wed, 13 Jul 2016 17:38:36 -0700 (PDT) Received: by mail-vk0-x22b.google.com with SMTP id w127so30575344vkh.2 for ; Wed, 13 Jul 2016 17:38:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=64Qi6Ua/j0L25d2IXWeWJXZojtdL0HB7zE8v0KEy0Jc=; b=wr20eHelaJ5MZJN3clOqNScOhJlwCv1LyeXiSm+Z6ysJuCqvT3v1zMwHJ23H6pMJxF elMvmEDg0PrTip0r8/tQH9dyzYmvsZuIZaaDWld8/PNc7nNRvXvfJzFU0bBU6pynV/Cs HJuPUUCP91xfhEKxulEjwKzf2Je14CrtQT9R4Xa9Imutqp+wrDqL7H1aeqVpRWM6yVe5 B9OLV8SBVRRfMp3c0H3GFTTnmwDSRkVULfnmX4C+K4TVqDkPoN334BY1VP1y7OuvhNGd yZov0YTL8RkFuQkcrCiUgXLDX3QwrJnLl3c4Swn65Tht4yEF3nYSUopuSuGdHK27Ezp3 8v2w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=64Qi6Ua/j0L25d2IXWeWJXZojtdL0HB7zE8v0KEy0Jc=; b=T6VdCbpuTqylt9wxMCfoGF4L+vMAa7L9tOxEAOoyyvAPN3ZIOzHtsO+DAjwVMtre5+ brVB9vO+BXUvaOHfyHYp9Lcxjw5iHHkF+JiaqIAEh4B1ZOaJR3Aq4LVPTdbNEqT0zaca ID3TeotCOd2byinGP9pwWKC6Lt8Boy/kw26Fj3BsPFetvnkEcEwZ/yfQfaL+r9lGwkSD NDofrjgrjWUC1Pb3wtyO23fL5Lc0l0VxDnj2QKvjg+xTVv1GzaicDqau2Bw/Jh7HaT+9 Wd7LzfuYPJkdtUfx1J/i1OYhv389p9m/fA9vaGd6rYnaPJp+baWcY0PgoysiGtoldGqA LJoA== X-Gm-Message-State: ALyK8tKxa0UiT5nybH46BYv4efL/6k80Gs9eBuug7qwRYxQBDCZVR3mqiaqtHPW7gIdUftiGYdZa+AjSKktqzQ== X-Received: by 10.159.36.15 with SMTP id 15mr4511842uaq.79.1468456716174; Wed, 13 Jul 2016 17:38:36 -0700 (PDT) MIME-Version: 1.0 Received: by 10.103.34.193 with HTTP; Wed, 13 Jul 2016 17:38:16 -0700 (PDT) In-Reply-To: References: <13734f09-4c78-06eb-7201-8f125097a5e8@uclouvain.be> <8760sdhgam.wl-jch@pps.univ-paris-diderot.fr> <80651913-f4fd-f439-0661-518115339a42@uclouvain.be> From: Alan Silva Date: Wed, 13 Jul 2016 21:38:16 -0300 Message-ID: To: Rui Paulo Content-Type: multipart/alternative; boundary=001a113cd586ef8f7105378db81d Archived-At: Cc: multipathtcp , "" Subject: Re: [multipathtcp] Socket API for MPTCP X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Jul 2016 00:38:38 -0000 --001a113cd586ef8f7105378db81d Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi, On Mon, Jul 11, 2016 at 3:41 PM, Rui Paulo wrote: > On Jul 10, 2016, at 05:18, Olivier Bonaventure < > Olivier.Bonaventure@uclouvain.be> wrote: > > > > We will then look at select. These notifications will be documented in > the next version of the draft. > > Does it make sense to talk about kqueue-style notifications in the draft? > Some operating systems have notification mechanisms that can be extended = to > support MPTCP events in a way that=E2=80=99s cleaner than select(). > I agree, but I think the choice for look at select-style notification for now is because it is based on the linux version of mptcp. I think in the future with mptcp for BSDs more stable, this draft will be updated. --001a113cd586ef8f7105378db81d Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi,=C2=A0

On Mon, Jul 11, 2016 at 3:41 PM, = Rui Paulo <rpaulo@apple.com> wrote:
On Jul 10, 2016, at 05:18, Olivier Bonaventure &= lt;Olivier.Bonaventure@= uclouvain.be> wrote:
>
> We will then look at select. These notifications will be documented in= the next version of the draft.

Does it make sense to talk about kqueue-style notifications in the d= raft?=C2=A0 Some operating systems have notification mechanisms that can be= extended to support MPTCP events in a way that=E2=80=99s cleaner than sele= ct().

I agree, but I think the choice f= or look at select-style notification for now is because it is based on the = linux version of mptcp. I think in the future with mptcp for BSDs more stab= le, this draft will be updated.=C2=A0
--001a113cd586ef8f7105378db81d-- From nobody Thu Jul 14 05:00:57 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B40F512D78C for ; Thu, 14 Jul 2016 05:00:55 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.321 X-Spam-Level: X-Spam-Status: No, score=-4.321 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=uclouvain.be Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ahBMesOflz5Z for ; Thu, 14 Jul 2016 05:00:53 -0700 (PDT) Received: from smtp1.sgsi.ucl.ac.be (smtp.sgsi.ucl.ac.be [130.104.5.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 9E82612D77B for ; Thu, 14 Jul 2016 05:00:53 -0700 (PDT) Received: from mbpobo.local (unknown [130.104.228.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: obonaventure@smtp1.sgsi.ucl.ac.be) by smtp1.sgsi.ucl.ac.be (Postfix) with ESMTPSA id D854867DE70; Thu, 14 Jul 2016 14:00:45 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 smtp1.sgsi.ucl.ac.be D854867DE70 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=uclouvain.be; s=selucl; t=1468497646; bh=iD7qaedWTrEdXlwDEyZ9IOj3WcOXtTSoUslMf1I0NdY=; h=Reply-To:Subject:References:To:Cc:From:Date:In-Reply-To; b=Q3Ct+3AX5NZpuSrV1/+PwSGDHASEE8osvyQN4x06+Vaud5nNlZqycmkW3ogOuIEPU wlFB4go6yHWvwGXwGwTOOvLa5/hYFCu201Fv91tAxucXC1xoMCASMFllpFrq5jhWco CZM2ISxsGtHEEYgvVX8YKk3j72XAJNHdujoDvb9c= X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.99 at smtp-1 References: <13734f09-4c78-06eb-7201-8f125097a5e8@uclouvain.be> <8760sdhgam.wl-jch@pps.univ-paris-diderot.fr> <80651913-f4fd-f439-0661-518115339a42@uclouvain.be> To: Rui Paulo From: Olivier Bonaventure Message-ID: <28901857-84b2-14f5-b4d7-59db6ea5d731@uclouvain.be> Date: Thu, 14 Jul 2016 14:00:46 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-Sgsi-Spamcheck: SASL authenticated, X-SGSI-Information: X-SGSI-MailScanner-ID: D854867DE70.A4934 X-SGSI-MailScanner: Found to be clean X-SGSI-From: olivier.bonaventure@uclouvain.be X-SGSI-Spam-Status: No Archived-At: Cc: multipathtcp , "" Subject: Re: [multipathtcp] Socket API for MPTCP X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list Reply-To: Olivier.Bonaventure@uclouvain.be List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Jul 2016 12:00:56 -0000 Rui, > On Jul 10, 2016, at 05:18, Olivier Bonaventure wrote: >> >> We will then look at select. These notifications will be documented in the next version of the draft. > > Does it make sense to talk about kqueue-style notifications in the draft? Some operating systems have notification mechanisms that can be extended to support MPTCP events in a way that’s cleaner than select(). > My suggestion in Berlin will be to ask to include an API item in the charter and suggest the socket draft as a starting point. I hope that other implementors will participate to the draft so that we can have an API that it common to all MPTCP implementations. select is one option for the notifications, recvmsg/sendmsg, kqueues, etc. Ideally, we should document the available API and ask feedback from developpers to improve them. Olivier From nobody Thu Jul 14 10:04:56 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E39F212D09A for ; Thu, 14 Jul 2016 10:04:54 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.921 X-Spam-Level: X-Spam-Status: No, score=-1.921 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id I0pviGRW4G5X for ; Thu, 14 Jul 2016 10:04:52 -0700 (PDT) Received: from mx18.belgacom.be (mx18.belgacom.be [195.13.15.238]) by ietfa.amsl.com (Postfix) with ESMTP id 7A8AC12D7A4 for ; Thu, 14 Jul 2016 10:04:50 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.28,363,1464645600"; d="scan'208";a="3524179" Received: from a05193.bgc.net ([10.121.129.141]) by mx18.belgacom.be with ESMTP; 14 Jul 2016 19:04:49 +0200 X-TM-IMSS-Message-ID: <6bf194b7000f1f7e@proximus.com> Received: from A04023.BGC.NET ([10.120.135.24]) by proximus.com ([10.121.129.141]) with ESMTP (TREND IMSS SMTP Service 7.5) id 6bf194b7000f1f7e ; Thu, 14 Jul 2016 19:04:48 +0200 Received: from A04086.BGC.NET ([169.254.2.167]) by A04023.BGC.NET ([10.120.135.24]) with mapi id 14.03.0266.001; Thu, 14 Jul 2016 19:04:48 +0200 From: "PEIRENS Bart (TSI/MST)" To: "mohamed.boucadair@orange.com" , "multipathtcp@ietf.org" Thread-Topic: Re: [multipathtcp] TR: I-D Action: draft-boucadair-mptcp-plain-mode-08.txt Thread-Index: AdHc425rg3vMOxmqTYixnk9DQIRiUA== Date: Thu, 14 Jul 2016 17:04:47 +0000 Message-ID: Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.12.97] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-TM-AS-MML: disable Archived-At: Subject: Re: [multipathtcp] TR: I-D Action: draft-boucadair-mptcp-plain-mode-08.txt X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Jul 2016 17:04:55 -0000 Dear Med, Thanks for the update of this draft My understanding is that the plain-mode draft is: It's inspired to have a deployment model that allows an 'off-path' con= centrator/mptcp-proxy in the backbone network without requiring additional = traffic steering techniques or tunnelling done in the network towards it. (E.g. it's 'network assisted mptcp deployment, within an operator c= ontrolled environment, but avoiding impact/configuration changes on other e= xisting network elements in the operator network) It allows either implicit or explicit deployment modes (using e.g. I-D= .boucadair-mptcp-dhc for discovery of the concentrator nodes) Furthermore it allows different modes in which the original CPE WAN or = Host LAN (IPv6) address is either preserved or mapped to the local pool on = the proxy node. Some questions arise while reviewing the draft: * Is the option preservation or the original source address on the concentr= ator not in direct contradiction with the goals of the draft, as the networ= k in such mode will have to implement traffic steering policies for Interne= t originated or return packets back to the concentrator, even more problema= tic if only selected flows/protocols originating from the CPE should benefi= t from the network assisted mptcp? An 'on-path' model of the mptcp proxy in= the forwarding path in the network could resolve this, but then rewriting = the addresses and embedding original ones in the PM option would no longer = be a requirement as well for deployment. * The draft does not seem to address the requirement for validation of the = embedded address in the PM option by the concentrator, especially with the = D bit set. The updated -08 version addresses the concern with multicast/bro= adcast/host loopback addresses however. Such validation for packets with th= e D-bit set should be done to implement BCP 38 on the concentrator. The net= work elements of an operator at the network boundary can no longer do this = now the address is embedded (we consider the CPE function outside of the ne= twork boundary and untrusted). When the PM option with D bit set to preserv= e original LAN address (e.g. IPv6 default case) the concentrator in additio= n needs to have knowledge of the delegated addresses behind the CPE and kee= p state of this? This would likely require some extra out of band synchroni= sation and complexity in the overall solution. * Even without source address preservation at the concentrator node, the la= ck of validation of an embedded address in a PM option with D bit set by th= e CPE is problematic. As mentioned in section 7.3 such a deployment that in= volves global (ipv4) address mapping/sharing will typically require a loggi= ng function for the operator for traceback of abuse or lawful purposes. Suc= h logging can only be relied on if the embedded source address received by = the CPE has been validated by some means to be effectively being assigned t= o it. * The effects of a rogue 'on-path' concentrator are described and illegitim= ate access to a concentrator node is described in section 7.1. My understan= ding of the workings of plain-mode is however that if any (e.g. including i= llegitimate off-path) concentrator can direct traffic to the CPE WAN addres= s it allows source address spoofing for incoming connections towards the cu= stomer LAN or CPE itself. I believe restricting the sources that a CPE does= accept packets with PM option set would be a requirement to resolve this a= nd as such ruling out the option of an implicit configuration model current= ly left open in the draft? I believe if the above points are left unaddressed the benefits of the 'off= -path' deployment model do not outweighs the new issues it creates for an o= perator and doubt if addressing them will not bring the solution to at leas= t the same or even higher complexity than an on-path model for an operator. In response we submitted a new ID (draft-peirens-mptcp-transparent-00) wher= e a more 'transparent' mode deployment is documented, preserving original c= ustomer addressing without embedding those within a new option field, as an= alternate deployment model. It would however require placing the concentra= tor 'on-path', or using network assisted steering of the traffic towards th= e concentrator/proxy. Today an operator has already has multiple options av= ailable today to archive this, not necessary requiring encapsulation, and a= more generic framework is being addresses as well in sfc wg. We would welc= ome discussion on this topic and benefits of either deployment model and wi= ll present the draft in the Wednesday slot next week. While in favour of a MPTCP proxy model for accelerated deployment and resou= rce pooling between access networks, I'm currently not convinced that embed= ding a specific traffic steering using a new MPTCP option is the best appro= ach forward. Regards Bart > Dear all, > > A new version that integrates the comments received from the list is avai= lable online: > * clarify that the solution applies for both CPEs and hosts directly conn= ected to operator networks. > * clarify how fragmentation is managed for UDP. > * clarify that one MPTCP connection is bound to one UDP flow > * precise the behavior when a plain mode option includes multicast and br= oadcast addresses > * call out that CGN optimization are inherited (e.g., optimize logging fi= les, address pooling, port randomization, port set assuagement, etc.). > * add a new section to explicit the target deployment and middlebox inter= ference > * add some text about checksum adjustment > > Reviews are more than welcome. > > Cheers, > Med ________________________________ ***** Disclaimer ***** http://www.proximus.be/maildisclaimer From nobody Thu Jul 14 11:37:31 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 92E8E12D0A5 for ; Thu, 14 Jul 2016 11:37:29 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.187 X-Spam-Level: X-Spam-Status: No, score=-3.187 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zrVQ802_YfXZ for ; Thu, 14 Jul 2016 11:37:26 -0700 (PDT) Received: from mail.sfc.wide.ad.jp (shonan.sfc.wide.ad.jp [IPv6:2001:200:0:8803::53]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id AC5C812D18D for ; Thu, 14 Jul 2016 11:37:26 -0700 (PDT) Received: from mail-vk0-f43.google.com (mail-vk0-f43.google.com [209.85.213.43]) by mail.sfc.wide.ad.jp (Postfix) with ESMTPSA id B002D2782F4 for ; Fri, 15 Jul 2016 03:37:24 +0900 (JST) Received: by mail-vk0-f43.google.com with SMTP id x130so123857852vkc.0 for ; Thu, 14 Jul 2016 11:37:24 -0700 (PDT) X-Gm-Message-State: ALyK8tKzsUQJbtiFivB5tT1GWq+DjuLV4LMLQzAVMGyGh0OkFCLKEX0J+sR8VgneTH9qY96rAv0YJi8sWyRNNg== X-Received: by 10.159.36.15 with SMTP id 15mr6666380uaq.79.1468521443269; Thu, 14 Jul 2016 11:37:23 -0700 (PDT) MIME-Version: 1.0 Received: by 10.176.4.164 with HTTP; Thu, 14 Jul 2016 11:37:22 -0700 (PDT) In-Reply-To: <7D01552D-AF37-4B69-8A2F-37CDA350AA44@apple.com> References: <7D01552D-AF37-4B69-8A2F-37CDA350AA44@apple.com> From: Yoshifumi Nishida Date: Thu, 14 Jul 2016 11:37:22 -0700 X-Gmail-Original-Message-ID: Message-ID: To: Christoph Paasch Content-Type: multipart/alternative; boundary=001a113cd586f8a70f05379cca58 Archived-At: Cc: MultiPath TCP - IETF WG Subject: Re: [multipathtcp] brief summary for bumping version number discussion X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Jul 2016 18:37:29 -0000 --001a113cd586f8a70f05379cca58 Content-Type: text/plain; charset=UTF-8 Hi Christoph, On Sat, Jul 2, 2016 at 12:33 AM, Christoph Paasch wrote: > Hello, > > > On Jul 1, 2016, at 12:14 AM, Yoshifumi Nishida > wrote: > > During the interim meeting, we found we still need some more discussions > for bumping the version number. > > So, I am trying to summarize the point of the discussion for further > discussions. > > > > As far as I can think, there are several reasons we would like to bump > the version number. > > > > 1) As we are moving from experimental to standard, we want to change > the version number so that we can distinguish both versions clearly. > > > > 2) In order to support the features in the bis draft (especially > initial handshake scheme), we need to change the version number. > > Otherwise we will have to have two initial handshake mechanisms > in a single version, which will be complex and tricky. > > Besides the handshake, ADD_ADDR2 also adds complexity. If we don't change > the version-number, hosts will have to do probing to see whether the peer > supports ADD_ADDR2 or not. And when a host receives an ADD_ADDR, he won't > be sure whether it is because the peer is RFC6824bis compliant and is just > probing (and the ADD_ADDR2 has been lost) or whether the peer only supports > RFC6824. > Yes, it's a way to do it, but it's not very simple as you mentioned. Other ways I can think is to use a flag in their initial exchange to check whether this is bis version or not. But, either way, I think we will need more discussions. If people prefer to not bump the number, it would be great if they can describe how to handle features described in the bis draft as well. > > > > On the other hand, I guess the followings are the reasons for not > bumping version number. > > > > A) As we're still in the middle of deployment process for mptcp, > bumping version number may create confusions in the deployments. > > > > B) The new features in the bis draft are not critical. The use cases > for them don't look major cases. We might want to see some statistics to > confirm they are major cases. > > I will present statistics in Berlin. > Thank you! -- Yoshi --001a113cd586f8a70f05379cca58 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Christoph,

On Sat, Jul 2, 2016 at 12:33 AM, Christoph Paasch <cpaas= ch@apple.com> wrote:
Hello,=

> On Jul 1, 2016, at 12:14 AM, Yoshifumi Nishida <nishida@sfc.wide.ad.jp> wrote:
> During the interim meeting, we found we still need some more discussio= ns for bumping the version number.
> So, I am trying to summarize the point of the discussion for further d= iscussions.
>
> As far as I can think, there are several reasons we would like to bump= the version number.
>
>=C2=A0 =C2=A01) As we are moving from experimental to standard, we want= to change the version number so that we can distinguish both versions clea= rly.
>
>=C2=A0 =C2=A02) In order to support the features in the bis draft (espe= cially initial handshake scheme), we need to change the version number.
>=C2=A0 =C2=A0 =C2=A0 =C2=A0 Otherwise we will have to have two initial = handshake mechanisms in a single version, which will be complex and tricky.=

Besides the handshake, ADD_ADDR2 also adds complexity. If we don'= ;t change the version-number, hosts will have to do probing to see whether = the peer supports ADD_ADDR2 or not. And when a host receives an ADD_ADDR, h= e won't be sure whether it is because the peer is RFC6824bis compliant = and is just probing (and the ADD_ADDR2 has been lost) or whether the peer o= nly supports RFC6824.

Yes, it's a w= ay to do it, but it's not very simple as you mentioned.=C2=A0
Other ways I can think is to use a flag in their initial exchange to check= whether this is bis version or not.
But, either way, I think we = will need more discussions.

If people prefer to no= t bump the number, it would be great if they can describe how to handle fea= tures described in the bis draft as well.


>
> On the other hand, I guess the followings are the reasons for not bump= ing version number.
>
>=C2=A0 =C2=A0A) As we're still in the middle of deployment process = for mptcp, bumping version number may create confusions in the deployments.=
>
>=C2=A0 =C2=A0B) The new features in the bis draft are not critical. The= use cases for them don't look major cases. We might want to see some s= tatistics to confirm they are major cases.

I will present statistics in Berlin.

=
Thank you!
--
Yoshi=C2=A0
<= /div> --001a113cd586f8a70f05379cca58-- From nobody Fri Jul 15 00:09:23 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DBD3612B042 for ; Fri, 15 Jul 2016 00:09:21 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.619 X-Spam-Level: X-Spam-Status: No, score=-2.619 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Wyf1t9S_ACBS for ; Fri, 15 Jul 2016 00:09:17 -0700 (PDT) Received: from relais-inet.francetelecom.com (relais-ias91.francetelecom.com [193.251.215.91]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C8F4512D094 for ; Fri, 15 Jul 2016 00:09:16 -0700 (PDT) Received: from omfedm05.si.francetelecom.fr (unknown [xx.xx.xx.1]) by omfedm14.si.francetelecom.fr (ESMTP service) with ESMTP id 0DB5322C7E0; Fri, 15 Jul 2016 09:09:15 +0200 (CEST) Received: from Exchangemail-eme2.itn.ftgroup (unknown [10.114.31.66]) by omfedm05.si.francetelecom.fr (ESMTP service) with ESMTP id D854E35C0CF; Fri, 15 Jul 2016 09:09:14 +0200 (CEST) Received: from OPEXCLILMA3.corporate.adroot.infra.ftgroup ([fe80::60a9:abc3:86e6:2541]) by OPEXCLILMA1.corporate.adroot.infra.ftgroup ([fe80::95e2:eb4b:3053:fabf%19]) with mapi id 14.03.0301.000; Fri, 15 Jul 2016 09:09:14 +0200 From: To: "PEIRENS Bart (TSI/MST)" , "multipathtcp@ietf.org" Thread-Topic: [multipathtcp] TR: I-D Action: draft-boucadair-mptcp-plain-mode-08.txt Thread-Index: AdHc425rg3vMOxmqTYixnk9DQIRiUABeoFtw Date: Fri, 15 Jul 2016 07:09:13 +0000 Message-ID: <787AE7BB302AE849A7480A190F8B933008DE6FDC@OPEXCLILMA3.corporate.adroot.infra.ftgroup> References: In-Reply-To: Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.168.234.5] Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-PMX-Version: 6.2.1.2478543, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2016.7.15.50318 Archived-At: Subject: Re: [multipathtcp] TR: I-D Action: draft-boucadair-mptcp-plain-mode-08.txt X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Jul 2016 07:09:22 -0000 Dear Bart,=20 Thank you for the review.=20 Please see inline. Cheers, Med > -----Message d'origine----- > De=A0: PEIRENS Bart (TSI/MST) [mailto:bart.peirens@proximus.com] > Envoy=E9=A0: jeudi 14 juillet 2016 19:05 > =C0=A0: BOUCADAIR Mohamed IMT/OLN; multipathtcp@ietf.org > Objet=A0: Re: [multipathtcp] TR: I-D Action: draft-boucadair-mptcp-plain- > mode-08.txt >=20 > Dear Med, >=20 > Thanks for the update of this draft >=20 > My understanding is that the plain-mode draft is: > It's inspired to have a deployment model that allows an 'off-path' > concentrator/mptcp-proxy in the backbone network without requiring > additional traffic steering techniques or tunnelling done in the network > towards it. > (E.g. it's 'network assisted mptcp deployment, within an operator > controlled environment, but avoiding impact/configuration changes on othe= r > existing network elements in the operator network) [Med] Yes, that's one of the objectives. No constraint on the location of t= he concentrators + minimal traffic steering policies at the network side. T= his model inherits BCPs from existing deployments such as Session Border Co= ntrollers, in particular. > It allows either implicit or explicit deployment modes (using e.g. I= - > D.boucadair-mptcp-dhc for discovery of the concentrator nodes) >=20 > Furthermore it allows different modes in which the original CPE WAN o= r > Host LAN (IPv6) address is either preserved or mapped to the local pool o= n > the proxy node. [Med] Yes. Each operator is free to enforce its local policies, e.g.,:=20 * IPv4 address sharing N:1 * IPv4 address rewriting 1:1 * IPv6 address preservation * NPTv6 And: * TCP-only * TCP and UDP * Etc. >=20 > Some questions arise while reviewing the draft: >=20 > * Is the option preservation or the original source address on the > concentrator not in direct contradiction with the goals of the draft, as > the network in such mode will have to implement traffic steering policies > for Internet originated or return packets back to the concentrator, even > more problematic if only selected flows/protocols originating from the CP= E > should benefit from the network assisted mptcp? [Med] As mentioned in the draft: "In order to intercept incoming traffic, specific IPv6 routes are injected so that traffic is redirected towards the concentrator" That's part of the "minimal" configuration I mentioned above. An 'on-path' model of the > mptcp proxy in the forwarding path in the network could resolve this, but > then rewriting the addresses and embedding original ones in the PM option > would no longer be a requirement as well for deployment. [Med] I'm not sure how an on-path model can preserve the IPv6 address of th= e terminal located behind the CPE if no tunnels are put in place. >=20 > * The draft does not seem to address the requirement for validation of th= e > embedded address in the PM option by the concentrator, especially with th= e > D bit set. The updated -08 version addresses the concern with > multicast/broadcast/host loopback addresses however. Such validation for > packets with the D-bit set should be done to implement BCP 38 on the > concentrator. [Med] Good point. The attack vector would be a misbehaving CPE that injects= an IP address that is not used locally. =20 We have a catch up sentence that covers this case: "Nevertheless, attacks from within the network between a host and a concentrator instance are yet another actual threat." The text can be elaborated further to describe the point you mentioned.=20 The network elements of an operator at the network boundary > can no longer do this now the address is embedded (we consider the CPE > function outside of the network boundary and untrusted). [Med] Anti-spoofing filters are still needed to make sure that each CPE is = using a valid (source) IP address. When the PM > option with D bit set to preserve original LAN address (e.g. IPv6 default > case) the concentrator in addition needs to have knowledge of the > delegated addresses behind the CPE and keep state of this? [Med] The concentrator may enforce some validation checks without such know= ledge, e.g.: * Check that the source IPv6 address in the PM option and an address of the= CPE used to place the session belong to a same prefix, e.g. /56 or /64. This would > likely require some extra out of band synchronisation and complexity in > the overall solution. [Med] See my previous comment. Local validation checks may be sufficient. >=20 > * Even without source address preservation at the concentrator node, the > lack of validation of an embedded address in a PM option with D bit set b= y > the CPE is problematic. As mentioned in section 7.3 such a deployment tha= t > involves global (ipv4) address mapping/sharing will typically require a > logging function for the operator for traceback of abuse or lawful > purposes. Such logging can only be relied on if the embedded source > address received by the CPE has been validated by some means to be > effectively being assigned to it. [Med] I don't understand the point. A source IP address used by a CPE is as= sumed to be always validated by the access network. I don't see a problem t= here. >=20 > * The effects of a rogue 'on-path' concentrator are described and > illegitimate access to a concentrator node is described in section 7.1. M= y > understanding of the workings of plain-mode is however that if any (e.g. > including illegitimate off-path) concentrator can direct traffic to the > CPE WAN address it allows source address spoofing for incoming connection= s > towards the customer LAN or CPE itself. [Med] The CPE must follow BCPs for these matters: only trust a list of conc= entrators that are provisioned. Think about SBCs/PCSFs/etc.=20 I believe restricting the sources > that a CPE does accept packets with PM option set would be a requirement > to resolve this and as such ruling out the option of an implicit > configuration model currently left open in the draft? [Med] MPTCP with PM is only enabled with concentrators that are provisioned= to the CPE. The document says: "secure means to discover a concentrator sh= ould be enabled." >=20 > I believe if the above points are left unaddressed the benefits of the > 'off-path' deployment model do not outweighs the new issues it creates fo= r > an operator and doubt if addressing them will not bring the solution to a= t > least the same or even higher complexity than an on-path model for an > operator. >=20 > In response we submitted a new ID (draft-peirens-mptcp-transparent-00) > where a more 'transparent' mode deployment is documented, preserving > original customer addressing without embedding those within a new option > field, as an alternate deployment model. It would however require placing > the concentrator 'on-path', or using network assisted steering of the > traffic towards the concentrator/proxy. Today an operator has already has > multiple options available today to archive this, not necessary requiring > encapsulation, and a more generic framework is being addresses as well in > sfc wg. [Med] FWIW, SFC requires two encapsulation schemes: the transport encapsula= tion and the service encapsulation. We would welcome discussion on this topic and benefits of either > deployment model and will present the draft in the Wednesday slot next > week. [Med] My personal view is that both implicit and explicit modes may have pr= oponents. I won't personally object to a specification that targets the imp= licit mode in addition to an explicit mode specification. FWIW, below are l= isted some of the reasons why I'm for an explicit mode: o It does not impose any specific constraint on the location of the concentrator. For example, the concentrator can be located in any access network, located upstream in the core network, or located in a data canter facility. o Tasks required for activating the explicit mode are minimal. In particular, this mode does not require any specific routing and/or forwarding policies for handling outbound packets other than ensuring that a concentrator is reachable from a CPE, and vice versa (which is straightforward IP routing policy operation). o The engineering effort to change the location of a concentrator for some reason (e.g., to better accommodate dimensioning constraints, to move the concentrator to a data canter, to enable additional concentrator instances closer to the customer premises, etc.) is minimal o An operator can easily enforce strategies for differentiating the treatment of MPTCP connections that are directly initiated by an MPTCP-enabled host connected to a concentrator if the explicit mode is enabled. Typically, an operator may decide to offload MPTCP connections originated by an MPTCP-enabled terminal from being forwarded through a specific concentrator, or decide to relay them via a specific concentrator. Such policies can be instructed to the concentrator. Implementing such differentiating behavior if the implicit mode is in use may be complex to achieve. o Multiple concentrators can be supported to service the same CPE, e.g., a concentrator can be enabled for internal services (to optimize the delivery of some operator-specific services) while another concentrator may be solicited for external services (e.g., access to the Internet). The explicit mode allows the deployment of such scenario owing to the provisioning of a concentrator selection policy table that relies upon the destination IP prefixes to select the concentrator to involve for an ongoing MPTCP connection, for instance. o Because the concentrator's reachability information is explicitly configured on the CPE, means to guarantee successful inbound connections can be enabled in the CPE to dynamically discover the external IP address that has been assigned for communicating with remote servers, instruct the concentrator to maintain active bindings so that incoming packets can be successfully redirected towards the appropriate CPE, etc. o Troubleshooting and root cause analysis may be facilitated in the explicit mode since faulty key nodes that may have caused a service degradation are known. Because of the loose adherence to the traffic forwarding and routing polices, troubleshooting a service degradation that is specific to multi-access serviced customers should first investigate the behavior of the involved concentrator.=20 Etc. >=20 > While in favour of a MPTCP proxy model for accelerated deployment and > resource pooling between access networks, I'm currently not convinced tha= t > embedding a specific traffic steering using a new MPTCP option is the bes= t > approach forward. >=20 > Regards > Bart >=20 > > Dear all, > > > > A new version that integrates the comments received from the list is > available online: > > * clarify that the solution applies for both CPEs and hosts directly > connected to operator networks. > > * clarify how fragmentation is managed for UDP. > > * clarify that one MPTCP connection is bound to one UDP flow > > * precise the behavior when a plain mode option includes multicast and > broadcast addresses > > * call out that CGN optimization are inherited (e.g., optimize logging > files, address pooling, port randomization, port set assuagement, etc.). > > * add a new section to explicit the target deployment and middlebox > interference > > * add some text about checksum adjustment > > > > Reviews are more than welcome. > > > > Cheers, > > Med >=20 >=20 > ________________________________ >=20 > ***** Disclaimer ***** > http://www.proximus.be/maildisclaimer From nobody Fri Jul 15 03:39:55 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5B91B12D504 for ; Fri, 15 Jul 2016 03:39:52 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.888 X-Spam-Level: X-Spam-Status: No, score=-3.888 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001] 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Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id F027712D1AE for ; Sun, 17 Jul 2016 01:48:27 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.187 X-Spam-Level: X-Spam-Status: No, score=-3.187 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id KluMg8CXPpS6 for ; Sun, 17 Jul 2016 01:48:25 -0700 (PDT) Received: from mail.sfc.wide.ad.jp (shonan.sfc.wide.ad.jp [IPv6:2001:200:0:8803::53]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3DCF912B02B for ; Sun, 17 Jul 2016 01:48:24 -0700 (PDT) Received: from mail-vk0-f43.google.com (mail-vk0-f43.google.com [209.85.213.43]) by mail.sfc.wide.ad.jp (Postfix) with ESMTPSA id B3F3727828C for ; Sun, 17 Jul 2016 17:48:22 +0900 (JST) Received: by mail-vk0-f43.google.com with SMTP id w127so147143507vkh.2 for ; Sun, 17 Jul 2016 01:48:22 -0700 (PDT) X-Gm-Message-State: ALyK8tL5rviLGTn3fyPHAUi6HkPVGKiwC0ocaxPlyToZFvvbmdmNSRdlO3mknTbAy9BOzworoFj6YQCGJJzi3w== X-Received: by 10.159.36.15 with SMTP id 15mr12500490uaq.79.1468745301253; Sun, 17 Jul 2016 01:48:21 -0700 (PDT) MIME-Version: 1.0 Received: by 10.176.4.164 with HTTP; Sun, 17 Jul 2016 01:48:20 -0700 (PDT) In-Reply-To: <31308e25-f968-443c-2839-c5ddda22f2fa@uclouvain.be> References: <20160708153425.32046.92545.idtracker@ietfa.amsl.com> <31308e25-f968-443c-2839-c5ddda22f2fa@uclouvain.be> From: Yoshifumi Nishida Date: Sun, 17 Jul 2016 01:48:20 -0700 X-Gmail-Original-Message-ID: Message-ID: To: Olivier Bonaventure Content-Type: multipart/alternative; boundary=001a113cd586f267f50537d0e91a Archived-At: Cc: multipathtcp Subject: Re: [multipathtcp] Fwd: New Version Notification for draft-duchene-mptcp-add-addr-00.txt X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 17 Jul 2016 08:48:28 -0000 --001a113cd586f267f50537d0e91a Content-Type: text/plain; charset=UTF-8 Hi Oliver, Fabien, I've read the draft and I am having the following comments on the draft. 1: Reliability DSS option doesn't have to be set on all data packets. So, I think there'll be a good chance to use ADD_ADDR in data packets in most cases. Also, I am not very sure if we really need to echo back the option for reliability. Can't we just send ADD_ADDR several times when we are not sure? 2:Backup I think MP_PRIO can be sent from other flow by using address id. Isn't it possible to send ADD_ADDR and MP_PRIO almost the same time? 3: Priority I might want to know the use case of this. I would like to know how having multiple priority can be useful. 4: Path Diversity I think path diversity can be varied by routing. Even if two addresses use the same interface, they might be forwarded to different routes. We might not be sure if they share common resources. 5: Load Balancing A question would be if we want to allocate a flag in MP_CAPABLE for a single use case. I am wondering if we can utilize MP_PRIO to indicate that this is a "no_join" path, which will be easier for allocating resource. Thanks, -- Yoshi On Mon, Jul 11, 2016 at 4:44 AM, Olivier Bonaventure < Olivier.Bonaventure@uclouvain.be> wrote: > FYI, > > This draft describes several issues related to the advertisement of > addresses in Multipath TCP and explains the bit proposed during the load > balancing discussion at the interim meeting > > A new version of I-D, draft-duchene-mptcp-add-addr-00.txt > has been successfully submitted by Fabien Duchene and posted to the > IETF repository. > > Name: draft-duchene-mptcp-add-addr > Revision: 00 > Title: Multipath TCP Address Advertisement > Document date: 2016-07-08 > Group: Individual Submission > Pages: 13 > URL: > https://www.ietf.org/internet-drafts/draft-duchene-mptcp-add-addr-00.txt > > > > Abstract: > Multipath TCP [RFC6824] defines the ADD_ADDR option that allows a > host to announce its addresses to the remote host. In this document > we propose some improvements to this mechanism. > > > _______________________________________________ > multipathtcp mailing list > multipathtcp@ietf.org > https://www.ietf.org/mailman/listinfo/multipathtcp > --001a113cd586f267f50537d0e91a Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Oliver, Fabien,=C2=A0

I've read the draft and I= am having the following comments on the draft.

1:= Reliability
=C2=A0 =C2=A0 DSS option doesn't have to be set = on all data packets. So, I think there'll be a good chance to use ADD_A= DDR in data packets in most cases. Also, I am not very sure if we really ne= ed to echo back the option for reliability. Can't we just send ADD_ADDR= several times when we are not sure?

2:Backup
=C2=A0 =C2=A0I think MP_PRIO can be sent from other flow by using add= ress id. Isn't it possible to send ADD_ADDR and MP_PRIO almost the same= time?

3: Priority
=C2=A0 =C2=A0I might = want to know the use case of this. I would like to know how having multiple= priority can be useful.

4: Path Diversity
=C2=A0 =C2=A0I think path diversity can be varied by routing. Even if tw= o addresses use the same interface, they might be forwarded to different ro= utes. We might not be sure if they share common resources.=C2=A0
=
5: Load Balancing
=C2=A0 =C2=A0A question would be= if we want to allocate a flag in MP_CAPABLE for a single use case.
=C2=A0 =C2=A0I am wondering if we can utilize MP_PRIO to indicate that t= his is a "no_join" path, which will be easier for allocating reso= urce.=C2=A0

Thanks,
--
Yoshi


On Mon, Jul 11, 2016 at 4:44 AM, Olivier Bonaventure <Olivier.Bonaventure@uclouvain.be> wrote:
FYI,

This draft describes several issues related to the advertisement of address= es in Multipath TCP and explains the bit proposed during the load balancing= discussion at the interim meeting

A new version of I-D, draft-duchene-mptcp-add-addr-00.txt
has been successfully submitted by Fabien Duchene and posted to the
IETF repository.

Name:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0draft-duchene-mptcp-add-addr<= br> Revision:=C2=A0 =C2=A0 =C2=A0 =C2=A000
Title:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Multipath TCP Address Advertisemen= t
Document date:=C2=A0 2016-07-08
Group:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Individual Submission
Pages:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 13
URL: https://www.ietf.org/in= ternet-drafts/draft-duchene-mptcp-add-addr-00.txt



 Abstract:
=C2=A0 =C2=A0Multipath TCP [RFC6824] defines the ADD_ADDR option that allow= s a
=C2=A0 =C2=A0host to announce its addresses to the remote host.=C2=A0 In th= is document
=C2=A0 =C2=A0we propose some improvements to this mechanism.


 _______________________________________________
multipathtcp mailing list
multipathtcp@iet= f.org
https://www.ietf.org/mailman/listinfo/multipathtcp=

--001a113cd586f267f50537d0e91a-- From nobody Tue Jul 19 14:10:44 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5BF3612D8B9; Tue, 19 Jul 2016 14:10:43 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.487 X-Spam-Level: X-Spam-Status: No, score=-5.487 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-1.287] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Ta0q7OD4eC8M; Tue, 19 Jul 2016 14:10:41 -0700 (PDT) Received: from mail-out4.uio.no (mail-out4.uio.no [IPv6:2001:700:100:10::15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 9021712D88B; Tue, 19 Jul 2016 14:10:41 -0700 (PDT) Received: from mail-mx2.uio.no ([129.240.10.30]) by mail-out4.uio.no with esmtp (Exim 4.80.1) (envelope-from ) id 1bPcHn-00027e-Tf; Tue, 19 Jul 2016 23:10:39 +0200 Received: from [46.189.28.92] (helo=[10.24.255.5]) by mail-mx2.uio.no with esmtpsa (TLSv1:DHE-RSA-AES256-SHA:256) user michawe (Exim 4.80) (envelope-from ) id 1bPcHn-0004cT-9A; Tue, 19 Jul 2016 23:10:39 +0200 Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Michael Welzl In-Reply-To: Date: Tue, 19 Jul 2016 23:10:41 +0200 Content-Transfer-Encoding: quoted-printable Message-Id: <9E2B315F-C916-4292-A1C0-BA8C90976E86@ifi.uio.no> References: <8230F063-8EF2-4B05-BF90-AB1E8832968E@ifi.uio.no> To: multipathtcp@ietf.org, "taps@ietf.org" X-Mailer: Apple Mail (2.3124) X-UiO-SPF-Received: X-UiO-Ratelimit-Test: rcpts/h 11 msgs/h 4 sum rcpts/h 14 sum msgs/h 5 total rcpts 44704 max rcpts/h 54 ratelimit 0 X-UiO-Spam-info: not spam, SpamAssassin (score=-5.0, required=5.0, autolearn=disabled, UIO_MAIL_IS_INTERNAL=-5, uiobl=NO, uiouri=NO) X-UiO-Scanned: D91FCB212C552FA7F305F5629ED2B3EFAB2B8003 X-UiO-SPAM-Test: remote_host: 46.189.28.92 spam_score: -49 maxlevel 80 minaction 2 bait 0 mail/h: 4 total 80 max/h 10 blacklist 0 greylist 0 ratelimit 0 Archived-At: Subject: Re: [multipathtcp] [Taps] MPTCP Socket API and TAPS X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Jul 2016 21:10:43 -0000 and now it seems I can=E2=80=99t get the MPTCP group=E2=80=99s email = address right=E2=80=A6 Sorry folks! > On 19. jul. 2016, at 23.09, Michael Welzl wrote: >=20 > OMG! > Typo below - NEAT is the a research project implementing TAPS, and I = wrote this email after the social=E2=80=A6 enough said=E2=80=A6 >=20 > very sorry: I meant to say: please discuss on the TAPS mailing list. >=20 >=20 >> On 19. jul. 2016, at 23.05, Michael Welzl wrote: >>=20 >> [ Please discuss on the NEAT mailing list ] >>=20 >>=20 >> Hi, >>=20 >> The TAPS WG is trying to identify which services transport protocols = offer, and then identify which of these services should be exposed to an = application that tries to communicate while being agnostic to the = transport protocol below. A TAPS system should then make a choice about = the right transport protocol and configure it autonomously, and = implement e.g. protocol fall-backs and such. >>=20 >> Some transport services must be exposed or else they could never be = used (e.g. unordered message delivery). Some can optimize performance if = they are exposed and cannot be used without application involvement, but = won=E2=80=99t make an application fail if they are not used (e.g. = turning the Nagle algorithm on/off). The remaining ones could be = =E2=80=9Cautomatized=E2=80=9D, i.e. a TAPS protocol could potentially = make a decision on its own about them. >>=20 >> Note that this raises the abstraction level of the API applications = use to talk to the network. As always, this comes with benefits (of = automatizing more things, and not requiring one specific transport = protocol, ..), but also with reduced control over the available = resources. As an extreme example, nobody in their right mind would write = wireshark over TAPS :-) >>=20 >> One proposal is to consider everything related to the usage of = multiple paths automatable. That is, not expose it as a TAPS service. >>=20 >> What do people here think about this? >>=20 >> Cheers, >> Michael >>=20 >> _______________________________________________ >> Taps mailing list >> Taps@ietf.org >> https://www.ietf.org/mailman/listinfo/taps >=20 > _______________________________________________ > Taps mailing list > Taps@ietf.org > https://www.ietf.org/mailman/listinfo/taps From nobody Wed Jul 20 07:01:36 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3EC9012D773 for ; Wed, 20 Jul 2016 07:01:35 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.889 X-Spam-Level: X-Spam-Status: No, score=-3.889 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0j_xxascUKPq for ; 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Wed, 20 Jul 2016 15:01:28 +0100 From: To: Thread-Topic: BANANA Bar BOF (bandwidth aggregation) - tomorrow night Thread-Index: AdHijtAW+CoES9FRTaSJDYbpoeWxfg== Date: Wed, 20 Jul 2016 14:01:27 +0000 Message-ID: Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.216.161.29] Content-Type: multipart/mixed; boundary="_002_a9cc4d0e9edd4abf88a503005cd7e1bfrew09926dag03bdomain1sy_" MIME-Version: 1.0 Archived-At: Subject: [multipathtcp] BANANA Bar BOF (bandwidth aggregation) - tomorrow night X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 20 Jul 2016 14:01:35 -0000 --_002_a9cc4d0e9edd4abf88a503005cd7e1bfrew09926dag03bdomain1sy_ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 TVBUQ1AgaXMgb25lIG9mIHRoZSB0ZWNobm9sb2dpZXMgZGlzY3Vzc2VkIGluIGJhbmFuYS4gLSBz ZWUgZGV0YWlscyBvZiB0aGUgYmFyIGJvZiBiZWxvdw0KcGhpbA0KDQotLS0tLU9yaWdpbmFsIE1l c3NhZ2UtLS0tLQ0KRnJvbTogTWFyZ2FyZXQgQ3VsbGVuIFttYWlsdG86bXJjdWxsZW40MkBnbWFp bC5jb21dIA0KU2VudDogMjAgSnVseSAyMDE2IDE1OjIzDQpUbzogbXB0Y3AtY2hhaXJzQGlldGYu b3JnDQpDYzogYmFuYW5hQGlldGYub3JnDQpTdWJqZWN0OiBCQU5BTkEgQmFyIEJPRg0KDQpNUFRD UCBDaGFpcnMsIHBsZWFzZSBmb3J3YXJkIHRoZSBiZWxvdyBtZXNzYWdlIHRvIHRoZSBNUFRDUCBX Ry4gIFRoYW5rIHlvdSENCg0KQkFOQU5BIGZvbGtzLCBJIGp1c3Qgd2FudGVkIHRvIG1ha2Ugc3Vy ZSB5b3UgYXJlIGF3YXJlIG9mIHRoaXMgaW52aXRhdGlvbi4gIEkgd2lsbCBzZW5kIHNvbWV0aGlu ZyBzaW1pbGFyIHRvIHRoZSBJTlRBUkVBIGdyb3VwLCBzaW5jZSBJIGFtIHByZXNlbnRpbmcgdGhl IGNvbnNpZGVyYXRpb25zIGRyYWZ0IHRoZXJlLiAgUGxlYXNlIGZlZWwgZnJlZSB0byBmb3J3YXJk IHRoaXMgaW5mb3JtYXRpb24gdG8gb3RoZXJzIHdobyBtaWdodCBiZSBpbnRlcmVzdGVkLCBhcyB3 ZWxsLg0KDQpNYXJnYXJldA0KDQotLS0NCg0KQXMgSSBtZW50aW9uZWQgaW4gdGhlIE1QVENQIG1l ZXRpbmcgdG9kYXksIHdlIHdpbGwgYmUgaG9sZGluZyBhIEJBTkFOQSAoQmFuZHdpZHRoIEFnZ3Jl Z2F0aW9uIGZvciBOZXR3b3JrIEFjY2Vzcykg4oCcQmFyIEJPRuKAnSBvbiBUaHVyc2RheSBldmVu aW5nIGZyb20gODowMHBtIHRvIDEwOjAwcG0gaW4gdGhlIFNob2VuZWJlcmcgbWVldGluZyByb29t LiAgQkFOQU5BIGlzIGEgY29vcGVyYXRpdmUgZ3JvdXAgdGhhdCBoYXMgYmVlbiBtZWV0aW5nIGZv ciBzZXZlcmFsIElFVEYgbWVldGluZ3MgdG8gZGlzY3VzcyB2YXJpb3VzIGJhbmR3aWR0aCBhZ2dy ZWdhdGlvbiB0ZWNobm9sb2dpZXMsIGJvdGggcHJvcHJpZXRhcnkgYW5kIHByb3Bvc2VkIHdpdGhp biB0aGUgSUVURi4gIEFtb25nIG90aGVyIHRoaW5ncywgd2UgaG9wZSB0byBmaW5kIGFyZWFzIChz aWduYWxpbmcsIGZsb3cgY29udHJvbCwgZXRjPykgdGhhdCBjYW4gYmUgaGFybW9uaXplZCBiZXR3 ZWVuIGRpZmZlcmVudCBzb2x1dGlvbnMuDQoNCkFzIHlvdSBjYW4gc2VlIGZyb20gb3VyIGFnZW5k YSAoaW5jbHVkZWQgYmVsb3cpLCB3ZSBhcmUgZXhwZWN0aW5nIHRvIGRpc2N1c3MgdGhlIE1QVENQ IHNvbHV0aW9ucyBpbiBzb21lIGRldGFpbCBhdCB0aGlzIG1lZXRpbmcuICBXZSBkaXNjdXNzZWQg b25lIGRlcGxveWVkIEdSRS1iYXNlZCBzb2x1dGlvbiBpbiBzb21lIGRldGFpbCBhdCBvdXIgbGFz dCBtZWV0aW5nLg0KDQpUaGUgQkFOQU5BIGdyb3VwIGhhcyBhIG1haWxpbmcgbGlzdCAoYmFuYW5h QGlldGYub3JnKSwgYW5kIHlvdSBjYW4gam9pbiBpdCBhdCB0aGlzIFVSTCAoSWYgeW91IGFyZSB3 b3JraW5nIG9uIGEgYmFuZHdpZHRoIGFnZ3JlZ2F0aW9uIHNvbHV0aW9uLCBwbGVhc2UgZG8hKToN Cmh0dHBzOi8vd3d3LmlldGYub3JnL21haWxtYW4vbGlzdGluZm8vYmFuYW5hDQoNCkkgaGF2ZSBz dGFydGVkIGEgZG9jdW1lbnQgYWJvdXQgdmFyaW91cyBDb25zaWRlcmF0aW9uIGZvciBCYW5kd2lk dGggQWdncmVnYXRpb24gdGhhdCBjYW4gYmUgZm91bmQgaGVyZToNCmh0dHBzOi8vZGF0YXRyYWNr ZXIuaWV0Zi5vcmcvZG9jL2RyYWZ0LW1yYy1iYW5hbmEtY29uc2lkZXJhdGlvbnMvDQoNCkkgd291 bGQgYXBwcmVjaWF0ZSBpbnB1dCBvbiB0aGVzZSBjb25zaWRlcmF0aW9ucywgZXNwZWNpYWxseSBo ZWxwIGluIGFjY3VyYXRlbHkgcmVwcmVzZW50aW5nIGhvdyB0aGUgZW1lcmdpbmcgTVBUQ1AgcHJv cG9zYWwgYmVoYXZlcyB3aXRoIHJlc3BlY3QgdG8gZWFjaCBjb25zaWRlcmF0aW9uLg0KDQpNeSBD b25zaWRlcmF0aW9ucyBkcmFmdCB3aWxsIGJlIHByZXNlbnRlZCBpbiBJTlRBUkVBIGJyaWVmbHkg dG9tb3Jyb3cgYWZ0ZXJub29uLCBidXQgd2lsbCBiZSBkaXNjdXNzZWQgaW4gbW9yZSBkZXRhaWwg aW4gdGhlIEJBTkFOQSBCYXIgQk9GLg0KDQpJIGhvcGUgdG8gc2VlIG1hbnkgb2YgeW91IHRoZXJl IQ0KDQpNYXJnYXJldA0KDQrigJTigJQNCkJBTkFOQSBCYXIgQk9GIEFnZW5kYQ0KVGh1cnNkYXks IDIxLUp1bC0yMDE2LCA4OjAwcG0gdG8gMTA6MDBwbSwgU2hvZW5lYmVyZw0KDQpIeWJyaWQgQWNj ZXNzIHN0YW5kYXJkaXphdGlvbiBhdCBUaGUgQnJvYWRiYW5kIEZvcnVtIChCQkYpIOKAkyBOaWNv bGFpIExleW1hbm4sIEJlaGNldCBTYXJpa2F5YSAoMzAgbWluKQ0KDQpQZXJmb3JtYW5jZSBldmFs dWF0aW9uIG9mIGJvbmRlZCB0dW5uZWxzIOKAkyBNaWNoYWVsIE1lbnRoICgxNSBtaW4pDQoNCk1Q VENQIHByb3h5IHByb3Bvc2Fscw0K4oCTIE1vaGFtZWQgQm91Y2FkYWlyICgxNSBtaW4pDQogIGh0 dHBzOi8vZGF0YXRyYWNrZXIuaWV0Zi5vcmcvZG9jL2RyYWZ0LWJvdWNhZGFpci1tcHRjcC1wbGFp bi1tb2RlLw0K4oCTIE9saXZpZXIgQm9uYXZlbnR1cmUgKDE1IG1pbikNCiAgaHR0cHM6Ly9kYXRh dHJhY2tlci5pZXRmLm9yZy9kb2MvZHJhZnQtcGVpcmVucy1tcHRjcC10cmFuc3BhcmVudC8NCg0K Q29uc2lkZXJhdGlvbnMNCuKAkyBNYXJnYXJldCBDdWxsZW4gKDEwbWluKQ0KICBodHRwczovL2Rh dGF0cmFja2VyLmlldGYub3JnL2RvYy9kcmFmdC1tcmMtYmFuYW5hLWNvbnNpZGVyYXRpb25zLw0K DQpPcGVuIGlzc3VlcyBkaXNjdXNzaW9uDQrigJMgQWxsICgyMCBtaW4pDQoNCkNvbW1vbiBpbnRl cmVzdHMgJiBuZXh0IHN0ZXBzDQrigJMgQWxsICgxNSBtaW4pDQoNCg== --_002_a9cc4d0e9edd4abf88a503005cd7e1bfrew09926dag03bdomain1sy_ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: signature.asc Content-Disposition: attachment; filename="signature.asc"; size=507; creation-date="Wed, 20 Jul 2016 14:01:27 GMT"; modification-date="Wed, 20 Jul 2016 14:01:27 GMT" Content-Transfer-Encoding: base64 LS0tLS1CRUdJTiBQR1AgU0lHTkFUVVJFLS0tLS0NCkNvbW1lbnQ6IEdQR1Rvb2xzIC0gaHR0cHM6 Ly9ncGd0b29scy5vcmcNCg0KaVFFY0JBRUJDZ0FHQlFKWGozc3dBQW9KRUpyeE9YekkzaWMvNWpn SUFLZC84dEdJN2FiVEFhSnUyMjIvcU1HSw0KcWtpc0VudEUwWWpGNTcrVW5mdldFSy84Tmo2aXA4 R3ZJVFRXRENBeUdpUllFWnVsbnVOUU5QUVRJckE2cXd5TA0KcnVwd2RXNTkzTmYzYUlmNzZoVXFI UFFTRkRQb29WQW9SYkFRKzl6TzZWNXArd1c5aGJnM0ZMMHBLekIxdktQRQ0KTk94aDhaYjJwQ0Ra bVBoYWY0MDk1L1NNSDFoTmw0LzBwbXNPT0hHYjNBVzhVclM5OXRMYUlNdUZRTjdDM1N1dA0KaHlR MjVneHNFZTk0TzRmQXRIaVNPZ3krK1dKMWNFNjdDaDlSSWliVkNXekxhVUZ5MVF2dlNvSFp2U0Vv VmM1Zw0KMDA3R1E5WmFYSHpTMGFuVEtySkZqSGhHUURUMEhtUzRFQ2Q4RjNDbFJRNHZOc0prc0hY Zm1lYVh6TG0vTXNRPQ0KPWowaEYNCi0tLS0tRU5EIFBHUCBTSUdOQVRVUkUtLS0tLQ0K --_002_a9cc4d0e9edd4abf88a503005cd7e1bfrew09926dag03bdomain1sy_-- From nobody Thu Jul 21 08:43:19 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 458B512B031 for ; Thu, 21 Jul 2016 08:43:18 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.888 X-Spam-Level: X-Spam-Status: No, score=-3.888 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Gwf5wpf4o2SH for ; Thu, 21 Jul 2016 08:43:15 -0700 (PDT) Received: from smtpb1.bt.com (smtpb1.bt.com [62.7.242.135]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 5DF2C12D77E for ; Thu, 21 Jul 2016 08:43:15 -0700 (PDT) Received: from EVMHT04-UKBR.domain1.systemhost.net (193.113.108.57) by EVMED01-UKBR.bt.com (10.216.161.31) with Microsoft SMTP Server (TLS) id 14.3.195.1; Thu, 21 Jul 2016 16:43:09 +0100 Received: from rew09926dag03b.domain1.systemhost.net (10.55.202.22) by EVMHT04-UKBR.domain1.systemhost.net (193.113.108.57) with Microsoft SMTP Server (TLS) id 8.3.342.0; Thu, 21 Jul 2016 16:43:13 +0100 Received: from rew09926dag03b.domain1.systemhost.net (10.55.202.22) by rew09926dag03b.domain1.systemhost.net (10.55.202.22) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Thu, 21 Jul 2016 16:43:12 +0100 Received: from rew09926dag03b.domain1.systemhost.net ([fe80::d514:fe50:560c:401e]) by rew09926dag03b.domain1.systemhost.net ([fe80::d514:fe50:560c:401e%12]) with mapi id 15.00.1178.000; Thu, 21 Jul 2016 16:43:12 +0100 From: To: Thread-Topic: potential new work item on MPTCP API Thread-Index: AdHjY9uMuLhvUNPnTqK0jHsvvSjLBQ== Date: Thu, 21 Jul 2016 15:43:12 +0000 Message-ID: <3b62f69a53554789966e8a281a4000d7@rew09926dag03b.domain1.systemhost.net> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.55.202.242] Content-Type: multipart/alternative; boundary="_000_3b62f69a53554789966e8a281a4000d7rew09926dag03bdomain1sy_" MIME-Version: 1.0 Archived-At: Subject: [multipathtcp] potential new work item on MPTCP API X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Jul 2016 15:43:18 -0000 --_000_3b62f69a53554789966e8a281a4000d7rew09926dag03bdomain1sy_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Yesterday Olivier presented about his & Benjamin's recent work on MPTCP soc= ket api. We didn't have much discussion whether to add this to the charter.= One comment was that any work should build on /reference RFC6897. https://www.ietf.org/proceedings/96/slides/slides-96-mptcp-4.pdf Please can you comment whether you see this as a useful work item, or you t= hink it shouldn't be worked on, or how it should be adapted to something yo= u think the WG should work on. To help prompt the discussion, here's a very first version of some possible= charter text RFC6897 defined an optional, basic application interface for MPTCP-aware ap= plications, including a set of socket operations. Now there is more experie= nce of how MPTCP is being used, the WG will re-visit this work, and conside= r adding more advanced socket operations. RFC6897 was Informational - would this new Milestone be Informational or Ex= perimental? Thanks phil Philip Eardley Research and Innovation This email contains BT information, which may be privileged or confidential= . It's meant only for the individual(s) or entity named above. If you're no= t the intended recipient, note that disclosing, copying, distributing or us= ing this information is prohibited. If you've received this email in error,= please let me know immediately on the email address above. Thank you. We monitor our email system, and may record your emails. British Telecommunications plc Registered office: 81 Newgate Street London EC1A 7AJ Registered in England no: 1800000 --_000_3b62f69a53554789966e8a281a4000d7rew09926dag03bdomain1sy_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Yesterday Olivier presented about his & Benjamin= ’s recent work on MPTCP socket api. We didn’t have much discuss= ion whether to add this to the charter. One comment was that any work shoul= d build on /reference RFC6897.

https://www.ietf.org/proceedings/96/slides/slides-= 96-mptcp-4.pdf

Please can you comment whether you see this as a use= ful work item, or you think it shouldn’t be worked on, or how it shou= ld be adapted to something you think the WG should work on.

 

To help prompt the discussion, here’s a very f= irst version of some possible charter text

RFC6897 defined an optional, basic application inter= face for MPTCP-aware applications, including a set of socket operations. No= w there is more experience of how MPTCP is being used, the WG will re-visit= this work, and consider adding more advanced socket operations.

 

RFC6897 was Informational – would this new Mil= estone be Informational or Experimental?

 

Thanks

phil

 

Philip Eard= ley

Research an= d Innovation

This email = contains BT information, which may be privileged or confidential. It's mean= t only for the individual(s) or entity named above. If you're not the intended recipient, note that disclosing, copying= , distributing or using this information is prohibited. If you've received = this email in error, please let me know immediately on the email address ab= ove. Thank you.
We monitor our email system, and may record your emails.<= /p>

British Tel= ecommunications plc
Registered office: 81 Newgate Street London EC1A 7AJ
Registered in England no: 1800000

 

--_000_3b62f69a53554789966e8a281a4000d7rew09926dag03bdomain1sy_-- From nobody Thu Jul 21 08:53:10 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5BFA112D759 for ; Thu, 21 Jul 2016 08:53:09 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.901 X-Spam-Level: X-Spam-Status: No, score=-6.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id WirjEp6dyRTq for ; Thu, 21 Jul 2016 08:53:06 -0700 (PDT) Received: from smtp-fr.alcatel-lucent.com (fr-hpida-esg-02.alcatel-lucent.com [135.245.210.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 48D0612D5C5 for ; Thu, 21 Jul 2016 08:52:54 -0700 (PDT) Received: from fr712umx3.dmz.alcatel-lucent.com (unknown [135.245.210.42]) by Websense Email Security Gateway with ESMTPS id 94D5DA2823DA5; Thu, 21 Jul 2016 15:52:49 +0000 (GMT) Received: from fr711usmtp1.zeu.alcatel-lucent.com (fr711usmtp1.zeu.alcatel-lucent.com [135.239.2.122]) by fr712umx3.dmz.alcatel-lucent.com (GMO-o) with ESMTP id u6LFqqLg024482 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 21 Jul 2016 15:52:52 GMT Received: from FR711WXCHHUB02.zeu.alcatel-lucent.com (fr711wxchhub02.zeu.alcatel-lucent.com [135.239.2.112]) by fr711usmtp1.zeu.alcatel-lucent.com (GMO) with ESMTP id u6LFqpSt028499 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Thu, 21 Jul 2016 17:52:51 +0200 Received: from FR712WXCHMBA15.zeu.alcatel-lucent.com ([169.254.7.34]) by FR711WXCHHUB02.zeu.alcatel-lucent.com ([135.239.2.112]) with mapi id 14.03.0195.001; Thu, 21 Jul 2016 17:52:51 +0200 From: "Scharf, Michael (Nokia - DE)" To: "philip.eardley@bt.com" , "multipathtcp@ietf.org" Thread-Topic: potential new work item on MPTCP API Thread-Index: AdHjY9uMuLhvUNPnTqK0jHsvvSjLBQAA8xGA Date: Thu, 21 Jul 2016 15:52:51 +0000 Message-ID: <655C07320163294895BBADA28372AF5D4892D4F2@FR712WXCHMBA15.zeu.alcatel-lucent.com> References: <3b62f69a53554789966e8a281a4000d7@rew09926dag03b.domain1.systemhost.net> In-Reply-To: <3b62f69a53554789966e8a281a4000d7@rew09926dag03b.domain1.systemhost.net> Accept-Language: de-DE, en-US Content-Language: de-DE X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [135.239.27.41] Content-Type: multipart/alternative; boundary="_000_655C07320163294895BBADA28372AF5D4892D4F2FR712WXCHMBA15z_" MIME-Version: 1.0 Archived-At: Subject: Re: [multipathtcp] potential new work item on MPTCP API X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Jul 2016 15:53:09 -0000 --_000_655C07320163294895BBADA28372AF5D4892D4F2FR712WXCHMBA15z_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable As author of RFC 6897 I'd be fine with revisiting that document as some asp= ects may be a bit outdated. I have not closely followed MPTCP recently but = I'd assume that parts of RFC 6897 are still valid. Michael From: multipathtcp [mailto:multipathtcp-bounces@ietf.org] On Behalf Of phil= ip.eardley@bt.com Sent: Thursday, July 21, 2016 5:43 PM To: multipathtcp@ietf.org Subject: [multipathtcp] potential new work item on MPTCP API Yesterday Olivier presented about his & Benjamin's recent work on MPTCP soc= ket api. We didn't have much discussion whether to add this to the charter.= One comment was that any work should build on /reference RFC6897. https://www.ietf.org/proceedings/96/slides/slides-96-mptcp-4.pdf Please can you comment whether you see this as a useful work item, or you t= hink it shouldn't be worked on, or how it should be adapted to something yo= u think the WG should work on. To help prompt the discussion, here's a very first version of some possible= charter text RFC6897 defined an optional, basic application interface for MPTCP-aware ap= plications, including a set of socket operations. Now there is more experie= nce of how MPTCP is being used, the WG will re-visit this work, and conside= r adding more advanced socket operations. RFC6897 was Informational - would this new Milestone be Informational or Ex= perimental? Thanks phil Philip Eardley Research and Innovation This email contains BT information, which may be privileged or confidential= . It's meant only for the individual(s) or entity named above. If you're no= t the intended recipient, note that disclosing, copying, distributing or us= ing this information is prohibited. If you've received this email in error,= please let me know immediately on the email address above. Thank you. We monitor our email system, and may record your emails. British Telecommunications plc Registered office: 81 Newgate Street London EC1A 7AJ Registered in England no: 1800000 --_000_655C07320163294895BBADA28372AF5D4892D4F2FR712WXCHMBA15z_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

As auth= or of RFC 6897 I’d be fine with revisiting that document as some aspe= cts may be a bit outdated. I have not closely followed MPTCP recently but I= ’d assume that parts of RFC 6897 are still valid.

&n= bsp;

Michael=

&n= bsp;

&n= bsp;

&n= bsp;

From: multipat= htcp [mailto:multipathtcp-bounces@ietf.org] On Behalf Of philip.eardley@bt.com
Sent: Thursday, July 21, 2016 5:43 PM
To: multipathtcp@ietf.org
Subject: [multipathtcp] potential new work item on MPTCP API

 

Yesterday Olivier presented abo= ut his & Benjamin’s recent work on MPTCP socket api. We didn̵= 7;t have much discussion whether to add this to the charter. One comment wa= s that any work should build on /reference RFC6897.

https://www.ietf.org/proceedi= ngs/96/slides/slides-96-mptcp-4.pdf

Please can you comment whether = you see this as a useful work item, or you think it shouldn’t be work= ed on, or how it should be adapted to something you think the WG should wor= k on.

 

To help prompt the discussion, = here’s a very first version of some possible charter text<= /span>

RFC6897 defined an optional, ba= sic application interface for MPTCP-aware applications, including a set of = socket operations. Now there is more experience of how MPTCP is being used,= the WG will re-visit this work, and consider adding more advanced socket operations.

 

RFC6897 was Informational ̵= 1; would this new Milestone be Informational or Experimental?

 

Thanks

phil

 

Philip Eardley

Research and Innovation

This email contains BT information, which may be= privileged or confidential. It's meant only for the individual(s) or entit= y named above. If you're not the intended recipient, note that disclosing, copying, distributing or using this infor= mation is prohibited. If you've received this email in error, please let me= know immediately on the email address above. Thank you.
We monitor our email system, and may record your emails.<= /p>

British Telecommunications plc
Registered office: 81 Newgate Street London EC1A 7AJ
Registered in England no: 1800000

 

--_000_655C07320163294895BBADA28372AF5D4892D4F2FR712WXCHMBA15z_-- From nobody Thu Jul 21 09:12:58 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 19AED12D0B4 for ; Thu, 21 Jul 2016 09:12:57 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.907 X-Spam-Level: X-Spam-Status: No, score=-3.907 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id GgmGFkJejtkZ for ; Thu, 21 Jul 2016 09:12:54 -0700 (PDT) Received: from smtpb1.bt.com (smtpb1.bt.com [62.7.242.137]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 21C7D12B032 for ; Thu, 21 Jul 2016 09:12:53 -0700 (PDT) Received: from EPDAG01D-UKBR.domain1.systemhost.net (193.113.197.205) by EVMED03-UKBR.bt.com (10.216.161.33) with Microsoft SMTP Server (TLS) id 14.3.195.1; Thu, 21 Jul 2016 17:12:51 +0100 Received: from rew09926dag03b.domain1.systemhost.net (10.55.202.22) by EPDAG01D-UKBR.domain1.systemhost.net (193.113.197.205) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Thu, 21 Jul 2016 17:12:51 +0100 Received: from rew09926dag03b.domain1.systemhost.net (10.55.202.22) by rew09926dag03b.domain1.systemhost.net (10.55.202.22) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Thu, 21 Jul 2016 17:12:50 +0100 Received: from rew09926dag03b.domain1.systemhost.net ([fe80::d514:fe50:560c:401e]) by rew09926dag03b.domain1.systemhost.net ([fe80::d514:fe50:560c:401e%12]) with mapi id 15.00.1178.000; Thu, 21 Jul 2016 17:12:50 +0100 From: To: Thread-Topic: towards a potential work item on two-ended proxy Thread-Index: AdHjZ4nHkoHVP9v7Rwqgdt1DLC/zlg== Date: Thu, 21 Jul 2016 16:12:50 +0000 Message-ID: Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.55.202.242] Content-Type: multipart/alternative; boundary="_000_b779dd12f1bb412c96c800eddaaf0247rew09926dag03bdomain1sy_" MIME-Version: 1.0 Archived-At: Subject: [multipathtcp] towards a potential work item on two-ended proxy X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Jul 2016 16:12:57 -0000 --_000_b779dd12f1bb412c96c800eddaaf0247rew09926dag03bdomain1sy_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable We started the discussion yesterday on a potential new work item on "two-en= ded proxy scenario" - where there's an MPTCP proxy in both the CPE and an a= ggregation point (for instance). The current charter is that one end host i= s MPTCP. If I can try and summarise the brief discussion yesterday (plus some side d= iscussions) (please correct my inaccuracies): - there are now deployments & products with an MPTCP proxy at each= end, plus planned Broadband Forum work (WT-348 is about to be made public,= with subsequent work to follow). So IETF work is timely (eg help allow an = operator to buy CPE from one vendor and aggregation gateway from another ve= ndor). - However, some people object to going beyond the current charter'= s "one-ended proxy scenario" (since the "two-ended proxy" discourages deplo= yment of MPTCP to all the end hosts, which is the ultimate goal) - There are two proposals (transparent & plain mode: draft-boucada= ir-mptcp-plain-mode-08 & draft-peirens-mptcp-transparent-00). Are these add= ressing different use cases, or do we need to choose between them? would a = (potential) charter item be to standardise existing draft(s), or to solve a= problem /scenario? - I think there was mention (by Wim??) that there's a third propos= al - how does this fit in, or did I get it wrong? - One aspect of the plain mode draft is to allow transport of UDP = traffic as well as TCP traffic. I think this is a proposal that should be d= iscussed separately - for instance it needs INT-area expertise. I think it would be good to have more discussion before attempting to write= some potential charter text (and then seeing if there's consensus for it). Thanks! Philip Eardley Research and Innovation This email contains BT information, which may be privileged or confidential= . It's meant only for the individual(s) or entity named above. If you're no= t the intended recipient, note that disclosing, copying, distributing or us= ing this information is prohibited. If you've received this email in error,= please let me know immediately on the email address above. Thank you. We monitor our email system, and may record your emails. British Telecommunications plc Registered office: 81 Newgate Street London EC1A 7AJ Registered in England no: 1800000 --_000_b779dd12f1bb412c96c800eddaaf0247rew09926dag03bdomain1sy_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

We started the discussion yesterday on a potential n= ew work item on “two-ended proxy scenario” – where there&= #8217;s an MPTCP proxy in both the CPE and an aggregation point (for instan= ce). The current charter is that one end host is MPTCP.

 

If I can try and summarise the brief discussion yest= erday (plus some side discussions) (please correct my inaccuracies):

-     &= nbsp;    there are now deployments & products with an MP= TCP proxy at each end, plus planned Broadband Forum work (WT-348 is about t= o be made public, with subsequent work to follow). So IETF work is timely (= eg help allow an operator to buy CPE from one vendor and aggregation gateway from another vendor). <= /p>

-     &= nbsp;    However, some people object to going beyond the cur= rent charter’s “one-ended proxy scenario” (since the R= 20;two-ended proxy” discourages deployment of MPTCP to all the end ho= sts, which is the ultimate goal)

-     &= nbsp;    There are two proposals (transparent & plain mo= de: draft-boucadair-mptcp-plain-mode-08 & draft-peirens-mptcp-transpare= nt-00). Are these addressing different use cases, or do we need to choose b= etween them? would a (potential) charter item be to standardise existing draft(s), or to solve a problem /scenario?=

-     &= nbsp;    I think there was mention (by Wim??) that thereR= 17;s a third proposal – how does this fit in, or did I get it wrong?<= o:p>

-     &= nbsp;    One aspect of the plain mode draft is to allow tran= sport of UDP traffic as well as TCP traffic. I think this is a proposal tha= t should be discussed separately  - for instance it needs INT-area exp= ertise.

 

I think it would be good to have more discussion bef= ore attempting to write some potential charter text (and then seeing if the= re’s consensus for it).

 

Thanks!

Philip Eard= ley

Research an= d Innovation

This email = contains BT information, which may be privileged or confidential. It's mean= t only for the individual(s) or entity named above. If you're not the intended recipient, note that disclosing, copying= , distributing or using this information is prohibited. If you've received = this email in error, please let me know immediately on the email address ab= ove. Thank you.
We monitor our email system, and may record your emails.<= /p>

British Tel= ecommunications plc
Registered office: 81 Newgate Street London EC1A 7AJ
Registered in England no: 1800000

 

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14.03.0195.001; Fri, 22 Jul 2016 06:17:22 +0200 From: "Henderickx, Wim (Nokia - BE)" To: "philip.eardley@bt.com" , "multipathtcp@ietf.org" Thread-Topic: [multipathtcp] towards a potential work item on two-ended proxy Thread-Index: AQHR48/xdDE8Hq+810K/F7XEsZLkuQ== Date: Fri, 22 Jul 2016 04:17:22 +0000 Message-ID: <30A9DFA7-1413-412D-87A1-F2963FFD2861@nokia.com> Accept-Language: nl-BE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/0.0.0.151008 x-originating-ip: [135.239.27.41] Content-Type: multipart/alternative; boundary="_000_30A9DFA71413412D87A1F2963FFD2861nokiacom_" MIME-Version: 1.0 Archived-At: Subject: Re: [multipathtcp] towards a potential work item on two-ended proxy X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Jul 2016 04:17:29 -0000 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23:04:27 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.205 X-Spam-Level: X-Spam-Status: No, score=-3.205 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jSlbKLVPwhCm for ; Thu, 21 Jul 2016 23:04:25 -0700 (PDT) Received: from relais-inet.orange.com (relais-nor36.orange.com [80.12.70.36]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 459B812D589 for ; Thu, 21 Jul 2016 23:04:25 -0700 (PDT) Received: from opfednr06.francetelecom.fr (unknown [xx.xx.xx.70]) by opfednr20.francetelecom.fr (ESMTP service) with ESMTP id CD978405BF for ; Fri, 22 Jul 2016 08:04:23 +0200 (CEST) Received: from localhost.localdomain (unknown [127.0.0.1]) by opfednr06.francetelecom.fr (ESMTP service) with ESMTP id BF0961A0065 for ; Fri, 22 Jul 2016 08:04:23 +0200 (CEST) Received: from opfednr06.rouen.francetelecom.fr by opfednr06.rouen.francetelecom.fr with queue id 176446-13 for multipathtcp@ietf.org; Fri, 22 Jul 2016 06:04:23 GMT Received: from Exchangemail-eme2.itn.ftgroup (unknown [xx.xx.31.42]) by opfednr06.francetelecom.fr (ESMTP service) with ESMTP id 97AA61A0057; Fri, 22 Jul 2016 08:04:23 +0200 (CEST) Received: from OPEXCLILMA3.corporate.adroot.infra.ftgroup ([fe80::60a9:abc3:86e6:2541]) by OPEXCLILM41.corporate.adroot.infra.ftgroup ([fe80::c845:f762:8997:ec86%19]) with mapi id 14.03.0301.000; Fri, 22 Jul 2016 08:04:23 +0200 From: To: "philip.eardley@bt.com" , "multipathtcp@ietf.org" Thread-Topic: towards a potential work item on two-ended proxy Thread-Index: AdHjZ4nHkoHVP9v7Rwqgdt1DLC/zlgAcsE6Q Date: Fri, 22 Jul 2016 06:04:22 +0000 Message-ID: <787AE7BB302AE849A7480A190F8B933008DEB133@OPEXCLILMA3.corporate.adroot.infra.ftgroup> References: In-Reply-To: Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.168.234.1] Content-Type: multipart/alternative; boundary="_000_787AE7BB302AE849A7480A190F8B933008DEB133OPEXCLILMA3corp_" MIME-Version: 1.0 Archived-At: Subject: Re: [multipathtcp] towards a potential work item on two-ended proxy X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Jul 2016 06:04:27 -0000 --_000_787AE7BB302AE849A7480A190F8B933008DEB133OPEXCLILMA3corp_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Phil, Please see inline. Cheers, Med De : multipathtcp [mailto:multipathtcp-bounces@ietf.org] De la part de phil= ip.eardley@bt.com Envoy=E9 : jeudi 21 juillet 2016 18:13 =C0 : multipathtcp@ietf.org Objet : [multipathtcp] towards a potential work item on two-ended proxy We started the discussion yesterday on a potential new work item on "two-en= ded proxy scenario" - where there's an MPTCP proxy in both the CPE and an a= ggregation point (for instance). The current charter is that one end host i= s MPTCP. If I can try and summarise the brief discussion yesterday (plus some side d= iscussions) (please correct my inaccuracies): - there are now deployments & products with an MPTCP proxy at each= end, plus planned Broadband Forum work (WT-348 is about to be made public,= with subsequent work to follow). So IETF work is timely (eg help allow an = operator to buy CPE from one vendor and aggregation gateway from another ve= ndor). [Med] Indeed! Endorsing this activity in the MPTCP WG is the natural way to= assist in defining interoperable MPTCP proxies. There is a real need expre= ssed by operators and vendors to work on this. - However, some people object to going beyond the current charter'= s "one-ended proxy scenario" (since the "two-ended proxy" discourages deplo= yment of MPTCP to all the end hosts, which is the ultimate goal) [Med] Both one-ended proxy and two-ended proxy makes sense. These are cover= ed for example in the plain-mode draft. The proposed solution allows to dif= ferentiate between native MPTCP connections from proxied connections to hel= p e2e MPTCP connection establishment if both the client and server are MPTC= P-capable. Please note that network operators do not have control on the te= rminals connected behind a CPE, and that those terminals are not even aware= of the presence of a proxy in the path. - There are two proposals (transparent & plain mode: draft-boucada= ir-mptcp-plain-mode-08 & draft-peirens-mptcp-transparent-00). Are these add= ressing different use cases, or do we need to choose between them? would a = (potential) charter item be to standardise existing draft(s), or to solve a= problem /scenario? [Med] As mentioned during the meeting, all these deployment use cases make = use of the same option. It is up to the taste of each operator to decide ab= out its own deployment mode. As a WG, we don't need to decide about that. - I think there was mention (by Wim??) that there's a third propos= al - how does this fit in, or did I get it wrong? - One aspect of the plain mode draft is to allow transport of UDP = traffic as well as TCP traffic. I think this is a proposal that should be d= iscussed separately - for instance it needs INT-area expertise. [Med] That's a fair point. Cross area reviews can always be managed, but th= e point is to have a starting home for the activity. I think it would be good to have more discussion before attempting to write= some potential charter text (and then seeing if there's consensus foro it)= . [Med] I have other sub-items that I would like to see included in the (hope= fully) proposed charter update. I will share that when a text proposal is o= n the table. Thanks! Philip Eardley Research and Innovation This email contains BT information, which may be privileged or confidential= . It's meant only for the individual(s) or entity named above. If you're no= t the intended recipient, note that disclosing, copying, distributing or us= ing this information is prohibited. If you've received this email in error,= please let me know immediately on the email address above. Thank you. We monitor our email system, and may record your emails. British Telecommunications plc Registered office: 81 Newgate Street London EC1A 7AJ Registered in England no: 1800000 --_000_787AE7BB302AE849A7480A190F8B933008DEB133OPEXCLILMA3corp_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi Phil,

 

Please see inline.

 

Cheers,

Med

 

De : multipathtcp [mailto:multipatht= cp-bounces@ietf.org] De la part de philip.eardley@bt.com
Envoy=E9 : jeudi 21 juillet 2016 18:13
=C0 : multipathtcp@ietf.org
Objet : [multipathtcp] towards a potential work item on two-end= ed proxy

 

We started the discussion yeste= rday on a potential new work item on “two-ended proxy scenario”= – where there’s an MPTCP proxy in both the CPE and an aggregat= ion point (for instance). The current charter is that one end host is MPTCP.

 

If I can try and summarise the = brief discussion yesterday (plus some side discussions) (please correct my = inaccuracies):

-     &= nbsp;    there are now deployments & products with a= n MPTCP proxy at each end, plus planned Broadband Forum work (WT-348 is abo= ut to be made public, with subsequent work to follow). So IETF work is time= ly (eg help allow an operator to buy CPE from one vendor and aggregation gateway from another vendor).

-     &= nbsp;    However, some people object to going beyond the= current charter’s “one-ended proxy scenario” (since the = “two-ended proxy” discourages deployment of MPTCP to all the en= d hosts, which is the ultimate goal)

-     &= nbsp;    There are two proposals (transparent & plai= n mode: draft-boucadair-mptcp-plain-mode-08 & draft-peirens-mptcp-trans= parent-00). Are these addressing different use cases, or do we need to choo= se between them? would a (potential) charter item be to standardise existing draft(s), or to solve a problem /scenario?=

-     &= nbsp;    I think there was mention (by Wim??) that there= ’s a third proposal – how does this fit in, or did I get it wro= ng?

-  = ;        One aspect of the plain mode draft is to allow = transport of UDP traffic as well as TCP traffic. I think this is a proposal= that should be discussed separately  - for instance it needs INT-area= expertise.

 

I think it would be good to hav= e more discussion before attempting to write some potential charter text (a= nd then seeing if there’s consensus foro<= /span> it).

[Med] I have other sub-items th= at I would like to see included in the (hopefully) proposed charter update.= I will share that when a text proposal is on the table.

 

Thanks!

Philip Eard= ley

Research an= d Innovation

This email = contains BT information, which may be privileged or confidential. It's mean= t only for the individual(s) or entity named above. If you're not the intended recipient, note that disclosing, copying= , distributing or using this information is prohibited. If you've received = this email in error, please let me know immediately on the email address ab= ove. Thank you.
We monitor our email system, and may record your emails.<= /p>

British Tel= ecommunications plc
Registered office: 81 Newgate Street London EC1A 7AJ
Registered in England no: 1800000

 

--_000_787AE7BB302AE849A7480A190F8B933008DEB133OPEXCLILMA3corp_-- From nobody Thu Jul 21 23:55:21 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 53D8E12D918 for ; Thu, 21 Jul 2016 23:55:20 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.205 X-Spam-Level: X-Spam-Status: No, score=-3.205 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7g07PfXVq--G for ; Thu, 21 Jul 2016 23:55:17 -0700 (PDT) Received: from relais-inet.orange.com (relais-nor34.orange.com [80.12.70.34]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 76A2212D660 for ; Thu, 21 Jul 2016 23:55:17 -0700 (PDT) Received: from opfednr04.francetelecom.fr (unknown [xx.xx.xx.68]) by opfednr21.francetelecom.fr (ESMTP service) with ESMTP id EDA82C0565 for ; Fri, 22 Jul 2016 08:55:15 +0200 (CEST) Received: from localhost.localdomain (unknown [127.0.0.1]) by opfednr04.francetelecom.fr (ESMTP service) with ESMTP id DFBA34007B for ; Fri, 22 Jul 2016 08:55:15 +0200 (CEST) Received: from opfednr04.rouen.francetelecom.fr by opfednr04.rouen.francetelecom.fr with queue id 186560-11 for multipathtcp@ietf.org; Fri, 22 Jul 2016 06:55:15 GMT Received: from Exchangemail-eme2.itn.ftgroup (unknown [xx.xx.31.57]) by opfednr04.francetelecom.fr (ESMTP service) with ESMTP id BFDE140078; Fri, 22 Jul 2016 08:55:15 +0200 (CEST) Received: from OPEXCLILMA3.corporate.adroot.infra.ftgroup ([fe80::60a9:abc3:86e6:2541]) by OPEXCLILM23.corporate.adroot.infra.ftgroup ([fe80::787e:db0c:23c4:71b3%19]) with mapi id 14.03.0301.000; Fri, 22 Jul 2016 08:55:15 +0200 From: To: "philip.eardley@bt.com" , "multipathtcp@ietf.org" Thread-Topic: towards a potential work item on two-ended proxy Thread-Index: AdHjZ4nHkoHVP9v7Rwqgdt1DLC/zlgAfHeEw Date: Fri, 22 Jul 2016 06:55:15 +0000 Message-ID: <4913_1469170515_5791C353_4913_2200_1_88132E969123D14D9BD844E1CD516EDE130B0F00@OPEXCLILMA3.corporate.adroot.infra.ftgroup> References: In-Reply-To: Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.168.234.5] Content-Type: multipart/alternative; boundary="_000_88132E969123D14D9BD844E1CD516EDE130B0F00OPEXCLILMA3corp_" MIME-Version: 1.0 Archived-At: Subject: Re: [multipathtcp] towards a potential work item on two-ended proxy X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Jul 2016 06:55:20 -0000 --_000_88132E969123D14D9BD844E1CD516EDE130B0F00OPEXCLILMA3corp_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello Philip, all, I believe the mptcp WG charter should evolve to include MPTCP proxy-related= work. As you rightfully mention in your message below, this would be a tim= ely effort (besides what's being cooked by the BBF) that is primarily motiv= ated by the existing and forthcoming development of so-called hybrid access= service offerings in Europe and Asia, and possibly in other regions of the= world. I also think that the proposed approaches (namely draft-boucadair and draft= -peirens) that have been presented during the mptcp WG session are rather m= eant to foster massive MPTCP adoption rather than hindering it. As for the charter update, I would encourage the documentation of a problem= statement with companion use cases, as well as the standardization of the = corresponding solution, presumably based upon the merging of the aforementi= oned drafts to accommodate all use cases. Let me also second Med's recent reply to this message. I too volunteer to c= ontribute to the updated charter text, assuming there's hopefully consensus= to move towards that direction. Cheers, Christian. De : multipathtcp [mailto:multipathtcp-bounces@ietf.org] De la part de phil= ip.eardley@bt.com Envoy=E9 : jeudi 21 juillet 2016 18:13 =C0 : multipathtcp@ietf.org Objet : [multipathtcp] towards a potential work item on two-ended proxy We started the discussion yesterday on a potential new work item on "two-en= ded proxy scenario" - where there's an MPTCP proxy in both the CPE and an a= ggregation point (for instance). The current charter is that one end host i= s MPTCP. If I can try and summarise the brief discussion yesterday (plus some side d= iscussions) (please correct my inaccuracies): - there are now deployments & products with an MPTCP proxy at each= end, plus planned Broadband Forum work (WT-348 is about to be made public,= with subsequent work to follow). So IETF work is timely (eg help allow an = operator to buy CPE from one vendor and aggregation gateway from another ve= ndor). - However, some people object to going beyond the current charter'= s "one-ended proxy scenario" (since the "two-ended proxy" discourages deplo= yment of MPTCP to all the end hosts, which is the ultimate goal) - There are two proposals (transparent & plain mode: draft-boucada= ir-mptcp-plain-mode-08 & draft-peirens-mptcp-transparent-00). Are these add= ressing different use cases, or do we need to choose between them? would a = (potential) charter item be to standardise existing draft(s), or to solve a= problem /scenario? - I think there was mention (by Wim??) that there's a third propos= al - how does this fit in, or did I get it wrong? - One aspect of the plain mode draft is to allow transport of UDP = traffic as well as TCP traffic. I think this is a proposal that should be d= iscussed separately - for instance it needs INT-area expertise. I think it would be good to have more discussion before attempting to write= some potential charter text (and then seeing if there's consensus for it). Thanks! Philip Eardley Research and Innovation This email contains BT information, which may be privileged or confidential= . It's meant only for the individual(s) or entity named above. If you're no= t the intended recipient, note that disclosing, copying, distributing or us= ing this information is prohibited. If you've received this email in error,= please let me know immediately on the email address above. Thank you. We monitor our email system, and may record your emails. British Telecommunications plc Registered office: 81 Newgate Street London EC1A 7AJ Registered in England no: 1800000 ___________________________________________________________________________= ______________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confiden= tielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu= ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el= ectroniques etant susceptibles d'alteration, Orange decline toute responsabilite si ce message a ete altere, deforme ou = falsifie. Merci. This message and its attachments may contain confidential or privileged inf= ormation that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and dele= te this message and its attachments. As emails may be altered, Orange is not liable for messages that have been = modified, changed or falsified. Thank you. --_000_88132E969123D14D9BD844E1CD516EDE130B0F00OPEXCLILMA3corp_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hello Philip, all,

 

I believe the mptcp WG charter should evolve= to include MPTCP proxy-related work. As you rightfully mention in your mes= sage below, this would be a timely effort (besides what’s being cooked by the BBF) that is primarily motivated by the e= xisting and forthcoming development of so-called hybrid access service offe= rings in Europe and Asia, and possibly in other regions of the world.<= /o:p>

 

I also think that the proposed approaches (n= amely draft-boucadair and draft-peirens) that have been presented during th= e mptcp WG session are rather meant to foster massive MPTCP adoption rather than hindering it.

 

As for the charter update, I would encourage= the documentation of a problem statement with companion use cases, as well= as the standardization of the corresponding solution, presumably based upon the merging of the aforementioned drafts to accommod= ate all use cases.

 

Let me also second Med’s recent reply = to this message. I too volunteer to contribute to the updated charter text,= assuming there’s hopefully consensus to move towards that direction.

 

Cheers,

 

Christian.

 

De : mult= ipathtcp [mailto:multipathtcp-bounces@ietf.o= rg] De la part de philip.eardley@bt.com
Envoy=E9 : jeudi 21 juillet 2016 18:13
=C0 : multipathtcp@ietf.org
Objet : [multipathtcp] towards a potential work item on two-end= ed proxy

 

We started the discussion yeste= rday on a potential new work item on “two-ended proxy scenario”= – where there’s an MPTCP proxy in both the CPE and an aggregat= ion point (for instance). The current charter is that one end host is MPTCP.

 

If I can try and summarise the = brief discussion yesterday (plus some side discussions) (please correct my = inaccuracies):

-     &= nbsp;    there are now deployments & products with a= n MPTCP proxy at each end, plus planned Broadband Forum work (WT-348 is abo= ut to be made public, with subsequent work to follow). So IETF work is time= ly (eg help allow an operator to buy CPE from one vendor and aggregation gateway from another vendor). <= /span>

-     &= nbsp;    However, some people object to going beyond the= current charter’s “one-ended proxy scenario” (since the = “two-ended proxy” discourages deployment of MPTCP to all the en= d hosts, which is the ultimate goal)

-     &= nbsp;    There are two proposals (transparent & plai= n mode: draft-boucadair-mptcp-plain-mode-08 & draft-peirens-mptcp-trans= parent-00). Are these addressing different use cases, or do we need to choo= se between them? would a (potential) charter item be to standardise existing draft(s), or to solve a problem /scenario?=

-     &= nbsp;    I think there was mention (by Wim??) that there= ’s a third proposal – how does this fit in, or did I get it wro= ng?

-     &= nbsp;    One aspect of the plain mode draft is to allow = transport of UDP traffic as well as TCP traffic. I think this is a proposal= that should be discussed separately  - for instance it needs INT-area= expertise.

 

I think it would be good to hav= e more discussion before attempting to write some potential charter text (a= nd then seeing if there’s consensus for it).

 

Thanks!

Philip Eard= ley

Research an= d Innovation

This email = contains BT information, which may be privileged or confidential. It's mean= t only for the individual(s) or entity named above. If you're not the intended recipient, note that disclosing, copying= , distributing or using this information is prohibited. If you've received = this email in error, please let me know immediately on the email address ab= ove. Thank you.
We monitor our email system, and may record your emails.<= /p>

British Tel= ecommunications plc
Registered office: 81 Newgate Street London EC1A 7AJ
Registered in England no: 1800000

 

______________________________________________________________________=
___________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
ectroniques etant susceptibles d'alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.
Thank you.
--_000_88132E969123D14D9BD844E1CD516EDE130B0F00OPEXCLILMA3corp_-- From nobody Fri Jul 22 01:48:31 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id F0EFB12D9F9 for ; Fri, 22 Jul 2016 01:48:28 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.378 X-Spam-Level: X-Spam-Status: No, score=-5.378 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001, T_DKIM_INVALID=0.01] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=fail (2048-bit key) reason="fail (message has been altered)" header.d=apple.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BuEUpMhsPyXi for ; Fri, 22 Jul 2016 01:48:27 -0700 (PDT) Received: from mail-in6.apple.com (mail-out6.apple.com [17.151.62.28]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id ECB2412B05D for ; 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charset=utf-8 Content-transfer-encoding: quoted-printable Hello, > On Jul 21, 2016, at 5:43 PM, philip.eardley@bt.com wrote: > Yesterday Olivier presented about his & Benjamin=E2=80=99s recent work = on MPTCP socket api. We didn=E2=80=99t have much discussion whether to = add this to the charter. One comment was that any work should build on = /reference RFC6897. > https://www.ietf.org/proceedings/96/slides/slides-96-mptcp-4.pdf = > Please can you comment whether you see this as a useful work item, or = you think it shouldn=E2=80=99t be worked on, or how it should be adapted = to something you think the WG should work on. yes, I think it is a very useful work item and am willing to contribute = to this work. I'm not sure whether this can be seen as an update to 6897. I'm under = the impression that 6897 takes a different approach, giving users a = high-level overview of how using MPTCP might look like to an application = that is talking to a TCP-socket (which happens to end up using MPTCP). Olivier's work seems to rather make MPTCP entirely explicit to the = application. So, I think both works take a different approach. > To help prompt the discussion, here=E2=80=99s a very first version of = some possible charter text > RFC6897 defined an optional, basic application interface for = MPTCP-aware applications, including a set of socket operations. Now = there is more experience of how MPTCP is being used, the WG will = re-visit this work, and consider adding more advanced socket operations. > =20 > RFC6897 was Informational =E2=80=93 would this new Milestone be = Informational or Experimental? I think it should be Informational. Christoph > =20 > Thanks > phil > =20 > Philip Eardley > Research and Innovation > This email contains BT information, which may be privileged or = confidential. It's meant only for the individual(s) or entity named = above. If you're not the intended recipient, note that disclosing, = copying, distributing or using this information is prohibited. If you've = received this email in error, please let me know immediately on the = email address above. Thank you. > We monitor our email system, and may record your emails. > British Telecommunications plc > Registered office: 81 Newgate Street London EC1A 7AJ > Registered in England no: 1800000 > =20 > _______________________________________________ > multipathtcp mailing list > multipathtcp@ietf.org > https://www.ietf.org/mailman/listinfo/multipathtcp = --Boundary_(ID_8/xTf/ZR4ghMNuZ3j/CLSA) Content-type: text/html; charset=utf-8 Content-transfer-encoding: quoted-printable Hello,

On Jul 21, 2016, at 5:43 PM, philip.eardley@bt.com= wrote:
Yesterday Olivier presented about his & Benjamin=E2=80=99s = recent work on MPTCP socket api. We didn=E2=80=99t have much discussion = whether to add this to the charter. One comment was that any work should = build on /reference RFC6897.
https://www.ietf.org/proceedings/96/slides/slides-96-mptcp-4.pd= f
Please = can you comment whether you see this as a useful work item, or you think = it shouldn=E2=80=99t be worked on, or how it should be adapted to = something you think the WG should work = on.

yes, I = think it is a very useful work item and am willing to contribute to this = work.

I'm not sure whether this can = be seen as an update to 6897. I'm under the impression that 6897 takes a = different approach, giving users a high-level overview of how using = MPTCP might look like to an application that is talking to a TCP-socket = (which happens to end up using MPTCP).

Olivier's work seems to rather make MPTCP entirely = explicit to the application. So, I think both works take a different = approach.

To help = prompt the discussion, here=E2=80=99s a very first version of some = possible charter text
RFC6897 defined an optional, basic application interface for = MPTCP-aware applications, including a set of socket operations. Now = there is more experience of how MPTCP is being used, the WG will = re-visit this work, and consider adding more advanced socket = operations.
 
RFC6897 was Informational =E2=80=93 would this new Milestone = be Informational or Experimental?

I think it should be Informational.


Christoph

 
Thanks
phil
 
Philip Eardley
Research and Innovation
This email contains BT information, which may be = privileged or confidential. It's meant only for the individual(s) or = entity named above. If you're not the intended recipient, note that = disclosing, copying, distributing or using this information is = prohibited. If you've received this email in error, please let me know = immediately on the email address above. Thank you.
We = monitor our email system, and may record your emails.
British Telecommunications plc
Registered office: 81 Newgate Street London EC1A 7AJ
Registered in England no: 1800000
 
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multipathtcp@ietf.org
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Fri, 22 Jul 2016 02:19:23 -0700 (PDT) X-AuditID: 11973e11-f79e76d000002878-34-5791e51bad38 Received: from foxglove.apple.com (foxglove.apple.com [17.171.128.130]) by relay5.apple.com (Apple SCV relay) with SMTP id 51.D8.30701.B15E1975; Fri, 22 Jul 2016 02:19:23 -0700 (PDT) MIME-version: 1.0 Content-type: multipart/alternative; boundary="Boundary_(ID_FUyoAzcQOJG+lsAORFceBg)" Received: from [17.168.89.14] (unknown [17.168.89.14]) by foxglove.apple.com (Oracle Communications Messaging Server 8.0.1.1.0 64bit (built May 17 2016)) with ESMTPSA id <0OAP00J9HLW8OW10@foxglove.apple.com>; Fri, 22 Jul 2016 02:19:23 -0700 (PDT) Sender: cpaasch@apple.com From: Christoph Paasch In-reply-to: Date: Fri, 22 Jul 2016 11:19:23 +0200 Message-id: References: To: Philip Eardley X-Mailer: Apple Mail (2.3124) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrDLMWRmVeSWpSXmKPExsUi2FAYoSv9dGK4we1/phafV19ns1i2dgWj A5NH25fJTB5LlvxkCmCK4rJJSc3JLEst0rdL4Mq4OHEDW8GH2oqvPxawNzA+yOli5OCQEDCR 2NKq28XICWSKSVy4t56ti5GLQ0hgL6PEuh1z2SASJhI9tzZCJXYwSkxsv8EIkuAVEJT4Mfke C4jNLBAmMa1zAzNE0R9Gib4Jd1lBEsICkhLdd+4wQ9g+Eh1XpoE1sAloSby93Q5WwykQLnF3 xT92EJtFQFVi0alOFpDrmAWMJabMNAIxeQVsJL6uzgIxhYBW3f7kBlIsAjSkZ8lFJogzZSWe nFzEAnKBhMAJNonPTR+ZJzAKz0Jy6Swkl84CW6AuMWVKLkRYW+LJuwusELaaxMLfi5iQxRcw sq1iFMpNzMzRzcwz0kssKMhJ1UvOz93ECIqO6XaCOxiPr7I6xCjAwajEw3vi6YRwIdbEsuLK 3EOM0hwsSuK8H0QmhgsJpCeWpGanphakFsUXleakFh9iZOLglGpgtF1h/XTK3zdGCcJGd2YV bxQMNmqU5TraLVrlxGAkIJziY77j6O0Lps/LPkqkntjifP63jNC8SQflVmk9myb93KL9zL9s 733X2q+0ivXNCmV2Omri91H48v53R5ZPtdCP3zojRvup0M0re1yPb1Tg2vzcc6nOqcwq2c5r pk/8f4YrsUqXOFyUVWIpzkg01GIuKk4EANdiB2xvAgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrOIsWRmVeSWpSXmKPExsUiuLqhSVf66cRwgwWHDC0+r77OZrFs7QpG ByaPti+TmTyWLPnJFMAUxWWTkpqTWZZapG+XwJVxceIGtoIPtRVffyxgb2B8kNPFyMkhIWAi 0XNrIxuELSZx4d56IJuLQ0hgB6PExPYbjCAJXgFBiR+T77GA2MwCYRLTOjcwQxT9YZTom3CX FSQhLCAp0X3nDjOE7SPRcWUaWAObgJbE29vtYDWcAuESd1f8YwexWQRUJRad6gSq4QAaaiwx ZaYRiMkrYCPxdXUWiCkEtOr2JzeQYhGgIT1LLjJBnCkr8eTkIpYJjAKzkBw3C8lxs8BmqktM mZILEdaWePLuAiuErSax8PciJmTxBYxsqxgFilJzEitN9RILCnJS9ZLzczcxgsK5oTBiB+P/ ZVaHGAU4GJV4eE88nRAuxJpYVlyZe4hRgoNZSYTX/uHEcCHelMTKqtSi/Pii0pzU4kOMExmB PpzILCWanA+MtrySeEMTEwMTY2MzY2NzE3NaCiuJ885Y1hcuJJCeWJKanZpakFoEcxQTB6dU A2NGkMbkRKfC18uknrAI64TU/5IJyP8t/W75ofgUJfUzXyduVTvEoHDMxvzOjQ191sf6Z68N +xI0cVfzcb+ADVvs5hh1/LzPdFNhRtil6oO1XHX2FzieCoYx8a7fvWtO968lE/4UsM2usft1 utXhcfnugxsnxRjfZhQ/v6osnq9v74vz/qnPPgYosRRnJBpqMRcVJwIAwiOxGNoCAAA= Archived-At: Cc: MultiPath TCP - IETF WG Subject: Re: [multipathtcp] towards a potential work item on two-ended proxy X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Jul 2016 09:19:27 -0000 --Boundary_(ID_FUyoAzcQOJG+lsAORFceBg) Content-type: text/plain; charset=utf-8 Content-transfer-encoding: quoted-printable Hello, > On Jul 21, 2016, at 6:12 PM, philip.eardley@bt.com wrote: > We started the discussion yesterday on a potential new work item on = =E2=80=9Ctwo-ended proxy scenario=E2=80=9D =E2=80=93 where there=E2=80=99s= an MPTCP proxy in both the CPE and an aggregation point (for instance). = The current charter is that one end host is MPTCP. > =20 > If I can try and summarise the brief discussion yesterday (plus some = side discussions) (please correct my inaccuracies): > - there are now deployments & products with an MPTCP proxy at = each end, plus planned Broadband Forum work (WT-348 is about to be made = public, with subsequent work to follow). So IETF work is timely (eg help = allow an operator to buy CPE from one vendor and aggregation gateway = from another vendor).=20 > - However, some people object to going beyond the current = charter=E2=80=99s =E2=80=9Cone-ended proxy scenario=E2=80=9D (since the = =E2=80=9Ctwo-ended proxy=E2=80=9D discourages deployment of MPTCP to all = the end hosts, which is the ultimate goal) > - There are two proposals (transparent & plain mode: = draft-boucadair-mptcp-plain-mode-08 & = draft-peirens-mptcp-transparent-00). Are these addressing different use = cases, or do we need to choose between them? would a (potential) charter = item be to standardise existing draft(s), or to solve a problem = /scenario? > - I think there was mention (by Wim??) that there=E2=80=99s a = third proposal =E2=80=93 how does this fit in, or did I get it wrong? > - One aspect of the plain mode draft is to allow transport of = UDP traffic as well as TCP traffic. I think this is a proposal that = should be discussed separately - for instance it needs INT-area = expertise. I think the proxy-work is built of two items: 1. The documentation of how a deployment of one-ended and two-ended = proxies look a like and the things that one should consider when doing = so. 2. The plain-mode-option. The point 1) is specific to MPTCP and probably useful to include in the = charter. For the point 2), I agree with Alan's comment in that this is entirely = independent from MPTCP. It is basically a mechanism for 0-RTT proxying, = by communicating the relevant IP-addresses between the proxies. Thus, I = don't think that we should specify the plain-mode option in the MPTCP = working-group, as the same plain-mode option might be useful in any = other transport-layer protocol. And we probably don't want a list of = draft-sctp-plain-mode, draft-tcp-plain-mode, ... Christoph > =20 > I think it would be good to have more discussion before attempting to = write some potential charter text (and then seeing if there=E2=80=99s = consensus for it). > =20 > Thanks! > Philip Eardley > Research and Innovation > This email contains BT information, which may be privileged or = confidential. It's meant only for the individual(s) or entity named = above. If you're not the intended recipient, note that disclosing, = copying, distributing or using this information is prohibited. If you've = received this email in error, please let me know immediately on the = email address above. Thank you. > We monitor our email system, and may record your emails. > British Telecommunications plc > Registered office: 81 Newgate Street London EC1A 7AJ > Registered in England no: 1800000 > =20 > _______________________________________________ > multipathtcp mailing list > multipathtcp@ietf.org > https://www.ietf.org/mailman/listinfo/multipathtcp = --Boundary_(ID_FUyoAzcQOJG+lsAORFceBg) Content-type: text/html; charset=utf-8 Content-transfer-encoding: quoted-printable Hello,

On Jul 21, 2016, at 6:12 PM, philip.eardley@bt.com= wrote:
We started the discussion yesterday on a potential new work = item on =E2=80=9Ctwo-ended proxy scenario=E2=80=9D =E2=80=93 where = there=E2=80=99s an MPTCP proxy in both the CPE and an aggregation point = (for instance). The current charter is that one end host is MPTCP.
 
If I can = try and summarise the brief discussion yesterday (plus some side = discussions) (please correct my inaccuracies):
-          there are now = deployments & products with an MPTCP proxy at each end, plus planned = Broadband Forum work (WT-348 is about to be made public, with subsequent = work to follow). So IETF work is timely (eg help allow an operator to = buy CPE from one vendor and aggregation gateway from another = vendor). 
-          However, some = people object to going beyond the current charter=E2=80=99s =E2=80=9Cone-e= nded proxy scenario=E2=80=9D (since the =E2=80=9Ctwo-ended proxy=E2=80=9D = discourages deployment of MPTCP to all the end hosts, which is the = ultimate goal)
-          There are two = proposals (transparent & plain mode: = draft-boucadair-mptcp-plain-mode-08 & = draft-peirens-mptcp-transparent-00). Are these addressing different use = cases, or do we need to choose between them? would a (potential) charter = item be to standardise existing draft(s), or to solve a problem = /scenario?
-          I think there = was mention (by Wim??) that there=E2=80=99s a third proposal =E2=80=93 = how does this fit in, or did I get it wrong?
-          One aspect of = the plain mode draft is to allow transport of UDP traffic as well as TCP = traffic. I think this is a proposal that should be discussed separately =  - for instance it needs INT-area = expertise.

I = think the proxy-work is built of two items:

1. The documentation of how a deployment of = one-ended and two-ended proxies look a like and the things that one = should consider when doing so.

2. = The plain-mode-option.


The point 1) is specific to MPTCP and probably = useful to include in the charter.

For = the point 2), I agree with Alan's comment in that this is entirely = independent from MPTCP. It is basically a mechanism for 0-RTT proxying, = by communicating the relevant IP-addresses between the proxies. Thus, I = don't think that we should specify the plain-mode option in the MPTCP = working-group, as the same plain-mode option might be useful in any = other transport-layer protocol. And we probably don't want a list of = draft-sctp-plain-mode, draft-tcp-plain-mode, ...


Christoph

 
I think = it would be good to have more discussion before attempting to write some = potential charter text (and then seeing if there=E2=80=99s consensus for = it).
 
Thanks!
Philip Eardley
Research and Innovation
This email contains BT information, which may be = privileged or confidential. It's meant only for the individual(s) or = entity named above. If you're not the intended recipient, note that = disclosing, copying, distributing or using this information is = prohibited. If you've received this email in error, please let me know = immediately on the email address above. Thank you.
We = monitor our email system, and may record your emails.
British Telecommunications plc
Registered office: 81 Newgate Street London EC1A 7AJ
Registered in England no: 1800000
 
_______________________________________________
multipathtcp = mailing list
multipathtcp@ietf.org
https://www.ietf.org/mailman/listinfo/multipathtcp

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([fe80::cba:56d0:a732:ef5a%19]) with mapi id 14.03.0301.000; Fri, 22 Jul 2016 11:41:58 +0200 From: To: Christoph Paasch , Philip Eardley Thread-Topic: [multipathtcp] towards a potential work item on two-ended proxy Thread-Index: AQHR4/ooR+qm47fnzU6cGfy257nA1KAkLP6w Date: Fri, 22 Jul 2016 09:41:58 +0000 Message-ID: <787AE7BB302AE849A7480A190F8B933008DEB3EA@OPEXCLILMA3.corporate.adroot.infra.ftgroup> References: In-Reply-To: Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.168.234.5] Content-Type: multipart/alternative; boundary="_000_787AE7BB302AE849A7480A190F8B933008DEB3EAOPEXCLILMA3corp_" MIME-Version: 1.0 Archived-At: Cc: MultiPath TCP - IETF WG Subject: Re: [multipathtcp] towards a potential work item on two-ended proxy X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id B9DE312D1B8; Fri, 22 Jul 2016 07:38:15 -0700 (PDT) Received: from mail-mx2.uio.no ([129.240.10.30]) by mail-out4.uio.no with esmtp (Exim 4.80.1) (envelope-from ) id 1bQbaf-0001GO-B7; Fri, 22 Jul 2016 16:38:13 +0200 Received: from [46.189.28.92] (helo=[10.24.255.5]) by mail-mx2.uio.no with esmtpsa (TLSv1:DHE-RSA-AES256-SHA:256) user michawe (Exim 4.80) (envelope-from ) id 1bQbae-00072n-RE; Fri, 22 Jul 2016 16:38:13 +0200 From: Michael Welzl Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Message-Id: <6E870E2B-9CB0-4165-9395-F9C98B1B3C86@ifi.uio.no> Date: Fri, 22 Jul 2016 16:38:12 +0200 To: multipathtcp@ietf.org, iccrg@irtf.org Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) X-Mailer: Apple Mail (2.3124) X-UiO-SPF-Received: X-UiO-Ratelimit-Test: rcpts/h 11 msgs/h 7 sum rcpts/h 13 sum msgs/h 8 total rcpts 44895 max rcpts/h 54 ratelimit 0 X-UiO-Spam-info: not spam, SpamAssassin (score=-5.0, required=5.0, autolearn=disabled, UIO_MAIL_IS_INTERNAL=-5, uiobl=NO, uiouri=NO) X-UiO-Scanned: 51BA3BF2945878C4B5ADCA1A73B820A24367B944 X-UiO-SPAM-Test: remote_host: 46.189.28.92 spam_score: -49 maxlevel 80 minaction 2 bait 0 mail/h: 7 total 127 max/h 10 blacklist 0 greylist 0 ratelimit 0 Archived-At: Subject: [multipathtcp] LISA - draft-barik-mptcp-lisa X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Jul 2016 14:38:20 -0000 (chair hat on) [ This email goes to the MPTCP and ICCRG lists as an announcement. When = answering, please discuss this in the ICCRG list. ] Dear all in MPTCP & ICCRG, Last Wednesday, in MPTCP, Runa Barik presented draft-barik-mptcp-lisa = (LISA - a Linked Slow-Start Algorithm). For more documentation & code, = see: http://heim.ifi.uio.no/runabk/lisa/ LISA was first presented by Runa in Yokohama, with feedback that was = addressed (with results shown in this presentation). (chair hat off, co-author hat on) LISA is a simple algorithm that prevents a large burst of packets going = out during in MPTCP in slow start in one particular round-trip (when all = but the first subflows join). E.g. with 4 subflows, MPTCP starts out = sending using IW10 on the first subflow, and then after 3 RTTs, 3 more = subflows start at the same time, adding 3 * IW10 on top of the ongoing = slow start. This short but massive burst is consistently bad when we = share a bottleneck, and often LISA also makes things better when not = sharing a bottleneck. (co-author hat off, chair hat on) LISA doesn=E2=80=99t fit the current charter of MPTCP, so we decided to = get this reviewed and discussed in ICCRG, and possibly (if the updated = charter doesn=E2=80=99t fit congestion control work) published via ICCRG = too. (both hats on) We would greatly appreciate if people could look at this work and = provide comments on the draft soon. Thank you all in advance! Cheers, Michael From nobody Fri Jul 22 13:45:14 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D877F12D0FB for ; Fri, 22 Jul 2016 13:45:12 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.487 X-Spam-Level: X-Spam-Status: No, score=-5.487 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id y5aY7ElGKocm for ; Fri, 22 Jul 2016 13:45:10 -0700 (PDT) Received: from ndjsvnpf104.ndc.nasa.gov (NDJSVNPF104.ndc.nasa.gov [198.117.1.154]) by ietfa.amsl.com (Postfix) with ESMTP id E8ADB12D8D1 for ; Fri, 22 Jul 2016 13:45:06 -0700 (PDT) Received: from ndjsppt105.ndc.nasa.gov (ndjsppt105.ndc.nasa.gov [198.117.1.199]) by ndjsvnpf104.ndc.nasa.gov (Postfix) with ESMTP id 3C39B40079C5; Fri, 22 Jul 2016 15:45:05 -0500 (CDT) Received: from NDJSCHT115.ndc.nasa.gov (ndjscht115-pub.ndc.nasa.gov [198.117.1.215]) by ndjsppt105.ndc.nasa.gov (8.15.0.59/8.15.0.59) with ESMTP id u6MKj4Gn010156; Fri, 22 Jul 2016 15:45:04 -0500 Received: from NDJSMBX203.ndc.nasa.gov ([169.254.2.200]) by NDJSCHT115.ndc.nasa.gov ([198.117.1.215]) with mapi id 14.03.0294.000; Fri, 22 Jul 2016 15:45:04 -0500 From: "Ivancic, William D. (GRC-LCA0)" To: Christoph Paasch , Philip Eardley Thread-Topic: [multipathtcp] towards a potential work item on two-ended proxy Thread-Index: AdHjZ4nHkoHVP9v7Rwqgdt1DLC/zlgAvIGGAAA+3KgA= Date: Fri, 22 Jul 2016 20:45:04 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.6.5.160527 x-originating-ip: [76.188.210.200] Content-Type: multipart/related; boundary="_004_D3B7FD614ACEAwilliamdivancicnasagov_"; type="multipart/alternative" MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-07-22_16:, , signatures=0 Archived-At: Cc: MultiPath TCP - IETF WG Subject: Re: [multipathtcp] towards a potential work item on two-ended proxy X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Jul 2016 20:45:13 -0000 --_004_D3B7FD614ACEAwilliamdivancicnasagov_ Content-Type: multipart/alternative; boundary="_000_D3B7FD614ACEAwilliamdivancicnasagov_" --_000_D3B7FD614ACEAwilliamdivancicnasagov_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable On our NASA Atmospheric Research vehicles, we are beginning to test MP-TCP.= Current testing is between aircraft communication relay and ground commun= ication relay without a proxy. But, the attached figure (I could eventuall= y put this in ascii art if need be) shows the need for two proxies. I susp= ect this architecture is not that uncommon in mobile communication platform= s that may be acting as the communication relay (military, first responders= , etc=85). Will [cid:8B1F62E2-78B3-44F6-9701-D557A7BE5DEF] From: multipathtcp > on behalf of Christoph Paasch > Date: Friday, July 22, 2016 at 5:19 AM To: Philip Eardley > Cc: MultiPath TCP - IETF WG > Subject: Re: [multipathtcp] towards a potential work item on two-ended prox= y Hello, On Jul 21, 2016, at 6:12 PM, philip.eardley@bt.com wrote: We started the discussion yesterday on a potential new work item on =93two-= ended proxy scenario=94 =96 where there=92s an MPTCP proxy in both the CPE = and an aggregation point (for instance). The current charter is that one en= d host is MPTCP. If I can try and summarise the brief discussion yesterday (plus some side d= iscussions) (please correct my inaccuracies): - there are now deployments & products with an MPTCP proxy at each= end, plus planned Broadband Forum work (WT-348 is about to be made public,= with subsequent work to follow). So IETF work is timely (eg help allow an = operator to buy CPE from one vendor and aggregation gateway from another ve= ndor). - However, some people object to going beyond the current charter= =92s =93one-ended proxy scenario=94 (since the =93two-ended proxy=94 discou= rages deployment of MPTCP to all the end hosts, which is the ultimate goal) - There are two proposals (transparent & plain mode: draft-boucada= ir-mptcp-plain-mode-08 & draft-peirens-mptcp-transparent-00). Are these add= ressing different use cases, or do we need to choose between them? would a = (potential) charter item be to standardise existing draft(s), or to solve a= problem /scenario? - I think there was mention (by Wim??) that there=92s a third prop= osal =96 how does this fit in, or did I get it wrong? - One aspect of the plain mode draft is to allow transport of UDP = traffic as well as TCP traffic. I think this is a proposal that should be d= iscussed separately - for instance it needs INT-area expertise. I think the proxy-work is built of two items: 1. The documentation of how a deployment of one-ended and two-ended proxies= look a like and the things that one should consider when doing so. 2. The plain-mode-option. The point 1) is specific to MPTCP and probably useful to include in the cha= rter. For the point 2), I agree with Alan's comment in that this is entirely inde= pendent from MPTCP. It is basically a mechanism for 0-RTT proxying, by comm= unicating the relevant IP-addresses between the proxies. Thus, I don't thin= k that we should specify the plain-mode option in the MPTCP working-group, = as the same plain-mode option might be useful in any other transport-layer = protocol. And we probably don't want a list of draft-sctp-plain-mode, draft= -tcp-plain-mode, ... --_000_D3B7FD614ACEAwilliamdivancicnasagov_ Content-Type: text/html; charset="Windows-1252" Content-ID: <4550278776B3CC4CA912B5E6D6BC820F@mail.nasa.gov> Content-Transfer-Encoding: quoted-printable
On our NASA Atmospheric Research vehicles, we are beginning to test MP= -TCP.  Current testing is between aircraft communication relay and gro= und communication relay without a proxy.  But, the attached figure (I = could eventually put this in ascii art if need be) shows the need for two proxies.  I suspect this architecture= is not that uncommon in mobile communication platforms that may be acting = as the communication relay (military, first responders, etc=85).

Will





From: multipathtcp <multipathtcp-bounces@ietf.org> = on behalf of Christoph Paasch <cpaa= sch@apple.com>
Date: Friday, July 22, 2016 at 5:19= AM
To: Philip Eardley <philip.eardley@bt.com>
Cc: MultiPath TCP - IETF WG <multipathtcp@ietf.org>
Subject: Re: [multipathtcp] towards= a potential work item on two-ended proxy

Hello,

On Jul 21, 2016, at 6:12 PM, philip.eardley@bt.com wrote:
We started the discussion yesterday on a potential new work item on =93two-= ended proxy scenario=94 =96 where there=92s an MPTCP proxy in both the CPE = and an aggregation point (for instance). The current charter is that one en= d host is MPTCP.
 
If I can try and summarise the brief discussion yesterday (plus some side d= iscussions) (please correct my inaccuracies):
-          there are now deployments= & products with an MPTCP proxy at each end, plus planned Broadband Forum work (WT-348 is a= bout to be made public, with subsequent work to follow). So IETF work is ti= mely (eg help allow an operator to buy CPE from one vendor and aggregation = gateway from another vendor). 
-          However, some people obje= ct to going beyond the current charter=92s =93one-ended proxy scenario=94 (since the =93two-e= nded proxy=94 discourages deployment of MPTCP to all the end hosts, which i= s the ultimate goal)
-          There are two proposals (= transparent & plain mode: draft-boucadair-mptcp-plain-mode-08 & draft-peirens-mptcp-transp= arent-00). Are these addressing different use cases, or do we need to choos= e between them? would a (potential) charter item be to standardise existing= draft(s), or to solve a problem /scenario?
-          I think there was mention= (by Wim??) that there=92s a third proposal =96 how does this fit in, or did I get it wrong= ?
-          One aspect of the plain m= ode draft is to allow transport of UDP traffic as well as TCP traffic. I think this is a p= roposal that should be discussed separately  - for instance it needs I= NT-area expertise.

I think the proxy-work is built of two items:

1. The documentation of how a deployment of one-ended and two-ended pr= oxies look a like and the things that one should consider when doing so.

2. The plain-mode-option.


The point 1) is specific to MPTCP and probably useful to include in th= e charter.

For the point 2), I agree with Alan's comment in that this is entirely= independent from MPTCP. It is basically a mechanism for 0-RTT proxying, by= communicating the relevant IP-addresses between the proxies. Thus, I don't= think that we should specify the plain-mode option in the MPTCP working-group, as the same plain-mode optio= n might be useful in any other transport-layer protocol. And we probably do= n't want a list of draft-sctp-plain-mode, draft-tcp-plain-mode, ...


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23 Jul 2016 09:16:07 +0200 From: "Henderickx, Wim (Nokia - BE)" To: "mohamed.boucadair@orange.com" , "Christoph Paasch" , Philip Eardley Thread-Topic: [multipathtcp] towards a potential work item on two-ended proxy Thread-Index: AQHR4/oodDE8Hq+810K/F7XEsZLkuaAkLP6wgAFvNQA= Date: Sat, 23 Jul 2016 07:16:07 +0000 Message-ID: References: <787AE7BB302AE849A7480A190F8B933008DEB3EA@OPEXCLILMA3.corporate.adroot.infra.ftgroup> In-Reply-To: <787AE7BB302AE849A7480A190F8B933008DEB3EA@OPEXCLILMA3.corporate.adroot.infra.ftgroup> Accept-Language: nl-BE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/0.0.0.151008 x-originating-ip: [135.239.27.39] Content-Type: multipart/alternative; boundary="_000_CF22A0EDE6754C9C974BBA3E0C623774nokiacom_" MIME-Version: 1.0 Archived-At: Cc: MultiPath TCP - IETF WG Subject: Re: [multipathtcp] towards a potential work item on two-ended proxy X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 23 Jul 2016 07:16:14 -0000 --_000_CF22A0EDE6754C9C974BBA3E0C623774nokiacom_ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 SW4tbGluZSBXSD4NCg0KDQpGcm9tOiBtdWx0aXBhdGh0Y3AgPG11bHRpcGF0aHRjcC1ib3VuY2Vz QGlldGYub3JnPG1haWx0bzptdWx0aXBhdGh0Y3AtYm91bmNlc0BpZXRmLm9yZz4+IG9uIGJlaGFs ZiBvZiAibW9oYW1lZC4gYm91Y2FkYWlyIiA8bW9oYW1lZC5ib3VjYWRhaXJAb3JhbmdlLmNvbTxt YWlsdG86bW9oYW1lZC5ib3VjYWRhaXJAb3JhbmdlLmNvbT4+DQpEYXRlOiBGcmlkYXkgMjIgSnVs eSAyMDE2IGF0IDExOjQxDQpUbzogQ2hyaXN0b3BoIFBhYXNjaCA8Y3BhYXNjaEBhcHBsZS5jb208 bWFpbHRvOmNwYWFzY2hAYXBwbGUuY29tPj4sIFBoaWxpcCBFYXJkbGV5IDxwaGlsaXAuZWFyZGxl eUBidC5jb208bWFpbHRvOnBoaWxpcC5lYXJkbGV5QGJ0LmNvbT4+DQpDYzogTXVsdGlQYXRoIFRD UCAtIElFVEYgV0cgPG11bHRpcGF0aHRjcEBpZXRmLm9yZzxtYWlsdG86bXVsdGlwYXRodGNwQGll dGYub3JnPj4NClN1YmplY3Q6IFJlOiBbbXVsdGlwYXRodGNwXSB0b3dhcmRzIGEgcG90ZW50aWFs 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[130.104.5.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 766F912D180 for ; Tue, 26 Jul 2016 03:43:41 -0700 (PDT) Received: from mbpobo.dhcp.info.ucl.ac.be (mbpobo.dhcp.info.ucl.ac.be [130.104.228.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: obonaventure@smtp4.sgsi.ucl.ac.be) by smtp4.sgsi.ucl.ac.be (Postfix) with ESMTPSA id 640B467E049; Tue, 26 Jul 2016 12:43:34 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 smtp4.sgsi.ucl.ac.be 640B467E049 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=uclouvain.be; s=selucl; t=1469529814; bh=FmjHR6sewOOzSQUvma33i+7EvgEjW6d/685PG25kEPQ=; h=Reply-To:Subject:References:To:From:Date:In-Reply-To; b=H3+fBm3TTJAyWTJ+FnsLlUS3S5doDooLzpnBcTE3KZL7jzGs0J8Qb7OLcGZaj8JzF iPIhJmJtM410CqgySo/Teud3ANqEu1kuWNq3sDmABzOALbhzkWL3it9K89Vn8s+eRg 6wGU6T7gft6H9VreUwdhkSkO0pSc9Jf6VoiQ/tSA= X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.99 at smtp-4 References: <3b62f69a53554789966e8a281a4000d7@rew09926dag03b.domain1.systemhost.net> To: philip.eardley@bt.com, multipathtcp@ietf.org From: Olivier Bonaventure Message-ID: <865c7622-213d-9847-c1df-1be5818fd9aa@uclouvain.be> Date: Tue, 26 Jul 2016 12:43:52 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: <3b62f69a53554789966e8a281a4000d7@rew09926dag03b.domain1.systemhost.net> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit X-Sgsi-Spamcheck: SASL authenticated, X-SGSI-Information: X-SGSI-MailScanner-ID: 640B467E049.A22C3 X-SGSI-MailScanner: Found to be clean X-SGSI-From: olivier.bonaventure@uclouvain.be X-SGSI-Spam-Status: No Archived-At: Subject: Re: [multipathtcp] potential new work item on MPTCP API X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list Reply-To: Olivier.Bonaventure@uclouvain.be List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Jul 2016 10:43:44 -0000 Phil, > Yesterday Olivier presented about his & Benjamin’s recent work on MPTCP > socket api. We didn’t have much discussion whether to add this to the > charter. One comment was that any work should build on /reference RFC6897. > > https://www.ietf.org/proceedings/96/slides/slides-96-mptcp-4.pdf > > Please can you comment whether you see this as a useful work item, or > you think it shouldn’t be worked on, or how it should be adapted to > something you think the WG should work on. > Many MPTCP users have expressed their interest in this work and after the meeting, several MPTCP implementors sit together and proposed ideas on how to further improve the work. With several implementors involved, I think that we can get very good results > To help prompt the discussion, here’s a very first version of some > possible charter text > > RFC6897 defined an optional, basic application interface for MPTCP-aware > applications, including a set of socket operations. Now there is more > experience of how MPTCP is being used, the WG will re-visit this work, > and consider adding more advanced socket operations. > > Fine for me > > RFC6897 was Informational – would this new Milestone be Informational or > Experimental? We should go for Informational, like the socket API for SCTP https://tools.ietf.org/html/rfc6458 Olivier From nobody Tue Jul 26 08:07:47 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3315412DE9A for ; Tue, 26 Jul 2016 08:07:46 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.887 X-Spam-Level: X-Spam-Status: No, score=-3.887 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wLIqtzN0R4QW for ; Tue, 26 Jul 2016 08:07:42 -0700 (PDT) Received: from smtpb1.bt.com (smtpb1.bt.com [62.7.242.142]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate 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Thread-Index: AdHjY9uMuLhvUNPnTqK0jHsvvSjLBQAiZGyAANcxd6A= Date: Tue, 26 Jul 2016 14:35:08 +0000 Message-ID: <5874e4caebfd40559a0da12ce20a7f7a@rew09926dag03b.domain1.systemhost.net> References: <3b62f69a53554789966e8a281a4000d7@rew09926dag03b.domain1.systemhost.net> <82899074-7E27-4792-BBC3-222A4E869B25@apple.com> In-Reply-To: <82899074-7E27-4792-BBC3-222A4E869B25@apple.com> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.55.202.242] Content-Type: multipart/alternative; boundary="_000_5874e4caebfd40559a0da12ce20a7f7arew09926dag03bdomain1sy_" MIME-Version: 1.0 Archived-At: Cc: multipathtcp@ietf.org Subject: Re: [multipathtcp] potential new work item on MPTCP API X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: 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score=-3.888 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NZB0giAatnnQ for ; Tue, 26 Jul 2016 08:40:36 -0700 (PDT) Received: from smtpb1.bt.com (smtpb1.bt.com [62.7.242.138]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 5DCB112DB59 for ; Tue, 26 Jul 2016 08:08:00 -0700 (PDT) Received: from E07HT02-UKBR.domain1.systemhost.net (193.113.197.160) by EVMED04-UKBR.bt.com (10.216.161.34) with Microsoft SMTP Server (TLS) id 14.3.195.1; Tue, 26 Jul 2016 16:07:57 +0100 Received: from rew09926dag03b.domain1.systemhost.net (10.55.202.22) by E07HT02-UKBR.domain1.systemhost.net (193.113.197.160) with Microsoft SMTP Server (TLS) id 8.3.342.0; Tue, 26 Jul 2016 16:07:57 +0100 Received: from rew09926dag03b.domain1.systemhost.net (10.55.202.22) by rew09926dag03b.domain1.systemhost.net (10.55.202.22) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Tue, 26 Jul 2016 16:07:53 +0100 Received: from rew09926dag03b.domain1.systemhost.net ([fe80::d514:fe50:560c:401e]) by rew09926dag03b.domain1.systemhost.net ([fe80::d514:fe50:560c:401e%12]) with mapi id 15.00.1178.000; Tue, 26 Jul 2016 16:07:53 +0100 From: To: , Thread-Topic: towards a potential work item on two-ended proxy Thread-Index: AdHjZ4nHkoHVP9v7Rwqgdt1DLC/zlgD5RCMA Date: Tue, 26 Jul 2016 15:07:52 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.55.202.242] Content-Type: multipart/alternative; boundary="_000_e2aa6ac517194af4b8c25c07f8e469fbrew09926dag03bdomain1sy_" MIME-Version: 1.0 Archived-At: Subject: Re: [multipathtcp] towards a potential work item on two-ended proxy X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Jul 2016 15:40:41 -0000 --_000_e2aa6ac517194af4b8c25c07f8e469fbrew09926dag03bdomain1sy_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable So far this discussion has made me a bit confused. Let me ask a specific qu= estion:- Why do we need both transparent and plain mode? If these are addressing dif= ferent usage scenarios, please explain them (in a paragraph?) (this is imp= ortant as a charter item would start by talking about the issue it was tack= ling - and then may mention some starting points or assumptions about the s= olution) Plain mode involves a signalling protocol (extension to mptcp - I assume th= is would be in scope of a prospective charter); then subsequently a way of = handling the actual traffic (UDP seems out of scope; TCP I'm not sure to wh= at extent this would be in scope). Do I understand this right? Comments? Thanks phil From: multipathtcp [mailto:multipathtcp-bounces@ietf.org] On Behalf Of phil= ip.eardley@bt.com Sent: 21 July 2016 17:13 To: multipathtcp@ietf.org Subject: [multipathtcp] towards a potential work item on two-ended proxy We started the discussion yesterday on a potential new work item on "two-en= ded proxy scenario" - where there's an MPTCP proxy in both the CPE and an a= ggregation point (for instance). The current charter is that one end host i= s MPTCP. If I can try and summarise the brief discussion yesterday (plus some side d= iscussions) (please correct my inaccuracies): - there are now deployments & products with an MPTCP proxy at each= end, plus planned Broadband Forum work (WT-348 is about to be made public,= with subsequent work to follow). So IETF work is timely (eg help allow an = operator to buy CPE from one vendor and aggregation gateway from another ve= ndor). - However, some people object to going beyond the current charter'= s "one-ended proxy scenario" (since the "two-ended proxy" discourages deplo= yment of MPTCP to all the end hosts, which is the ultimate goal) - There are two proposals (transparent & plain mode: draft-boucada= ir-mptcp-plain-mode-08 & draft-peirens-mptcp-transparent-00). Are these add= ressing different use cases, or do we need to choose between them? would a = (potential) charter item be to standardise existing draft(s), or to solve a= problem /scenario? - I think there was mention (by Wim??) that there's a third propos= al - how does this fit in, or did I get it wrong? - One aspect of the plain mode draft is to allow transport of UDP = traffic as well as TCP traffic. I think this is a proposal that should be d= iscussed separately - for instance it needs INT-area expertise. I think it would be good to have more discussion before attempting to write= some potential charter text (and then seeing if there's consensus for it). Thanks! Philip Eardley Research and Innovation This email contains BT information, which may be privileged or confidential= . It's meant only for the individual(s) or entity named above. If you're no= t the intended recipient, note that disclosing, copying, distributing or us= ing this information is prohibited. If you've received this email in error,= please let me know immediately on the email address above. Thank you. We monitor our email system, and may record your emails. British Telecommunications plc Registered office: 81 Newgate Street London EC1A 7AJ Registered in England no: 1800000 --_000_e2aa6ac517194af4b8c25c07f8e469fbrew09926dag03bdomain1sy_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

So far this discussion has made me a= bit confused. Let me ask a specific question:-

Why do we need both transparent and = plain mode? If these are addressing different usage scenarios, please expla= in them (in a paragraph?)  (this is important as a charter item would start by talking about the issue it was tackling &= #8211; and then may mention some starting points or assumptions about the s= olution)

Plain mode involves a signalling pro= tocol (extension to mptcp – I assume this would be in scope of a pros= pective charter); then subsequently a way of handling the actual traffic (UDP seems out of scope; TCP I’m not sur= e to what extent this would be in scope). Do I understand this right? Comme= nts?

Thanks

phil

 

From: multipathtcp [mailto:multipathtcp-bounces@ietf.org] On Behalf Of philip.eardley@bt.com
Sent: 21 July 2016 17:13
To: multipathtcp@ietf.org
Subject: [multipathtcp] towards a potential work item on two-ended p= roxy

 

We started the discussion yesterday on a potential n= ew work item on “two-ended proxy scenario” – where there&= #8217;s an MPTCP proxy in both the CPE and an aggregation point (for instan= ce). The current charter is that one end host is MPTCP.

 

If I can try and summarise the brief discussion yest= erday (plus some side discussions) (please correct my inaccuracies):

-     &= nbsp;    there are now deployments & products with an MP= TCP proxy at each end, plus planned Broadband Forum work (WT-348 is about t= o be made public, with subsequent work to follow). So IETF work is timely (= eg help allow an operator to buy CPE from one vendor and aggregation gateway from another vendor). <= /p>

-     &= nbsp;    However, some people object to going beyond the cur= rent charter’s “one-ended proxy scenario” (since the R= 20;two-ended proxy” discourages deployment of MPTCP to all the end ho= sts, which is the ultimate goal)

-     &= nbsp;    There are two proposals (transparent & plain mo= de: draft-boucadair-mptcp-plain-mode-08 & draft-peirens-mptcp-transpare= nt-00). Are these addressing different use cases, or do we need to choose b= etween them? would a (potential) charter item be to standardise existing draft(s), or to solve a problem /scenario?=

-     &= nbsp;    I think there was mention (by Wim??) that thereR= 17;s a third proposal – how does this fit in, or did I get it wrong?<= o:p>

-     &= nbsp;    One aspect of the plain mode draft is to allow tran= sport of UDP traffic as well as TCP traffic. I think this is a proposal tha= t should be discussed separately  - for instance it needs INT-area exp= ertise.

 

I think it would be good to have more discussion bef= ore attempting to write some potential charter text (and then seeing if the= re’s consensus for it).

 

Thanks!

Philip Eard= ley

Research an= d Innovation

This email = contains BT information, which may be privileged or confidential. It's mean= t only for the individual(s) or entity named above. If you're not the intended recipient, note that disclosing, copying= , distributing or using this information is prohibited. If you've received = this email in error, please let me know immediately on the email address ab= ove. Thank you.
We monitor our email system, and may record your emails.<= /p>

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--_000_e2aa6ac517194af4b8c25c07f8e469fbrew09926dag03bdomain1sy_-- From nobody Tue Jul 26 09:08:12 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B954012D8A5 for ; Tue, 26 Jul 2016 09:08:10 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.301 X-Spam-Level: X-Spam-Status: No, score=-4.301 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=uclouvain.be Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gFiIKy7M6bLq for ; Tue, 26 Jul 2016 09:07:51 -0700 (PDT) Received: from smtp4.sgsi.ucl.ac.be (smtp.sgsi.ucl.ac.be [130.104.5.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C8CA212DC09 for ; Tue, 26 Jul 2016 08:56:42 -0700 (PDT) Received: from mbpobo.dhcp.info.ucl.ac.be (mbpobo.dhcp.info.ucl.ac.be [130.104.228.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: obonaventure@smtp4.sgsi.ucl.ac.be) by smtp4.sgsi.ucl.ac.be (Postfix) with ESMTPSA id 054AD67E0A4; Tue, 26 Jul 2016 17:56:36 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 smtp4.sgsi.ucl.ac.be 054AD67E0A4 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=uclouvain.be; s=selucl; t=1469548596; bh=KK3Mi4q8U4bMPSvo9lM3/CvTgIgFv5dTAU2wWixaHU0=; h=Reply-To:Subject:References:To:From:Date:In-Reply-To; b=AFTRs5Z2aoXAyOMF4CwAUSBTvs9Apybjer6OZjbe2Tom18o7TvZzaKP//AKb5Ncdg PV2SoxF5JupSzfuuBVO8LccIAqYGvD3GQ1sRPoRV6Xq/Ep+6SOvtL6hpCz89ghTqKQ Zr/WkUgQfjx9TY4s8/kwsfqFKzm6AWgl03N7X7HA= X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.99 at smtp-4 References: To: philip.eardley@bt.com, multipathtcp@ietf.org From: Olivier Bonaventure Message-ID: <9ec53eb3-f648-c0a8-0c8d-dd01a0bc78ec@uclouvain.be> Date: Tue, 26 Jul 2016 17:56:53 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit X-Sgsi-Spamcheck: SASL authenticated, X-SGSI-Information: X-SGSI-MailScanner-ID: 054AD67E0A4.A8249 X-SGSI-MailScanner: Found to be clean X-SGSI-From: olivier.bonaventure@uclouvain.be X-SGSI-Spam-Status: No Archived-At: Subject: Re: [multipathtcp] towards a potential work item on two-ended proxy X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list Reply-To: Olivier.Bonaventure@uclouvain.be List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Jul 2016 16:08:11 -0000 Phil, > We started the discussion yesterday on a potential new work item on > “two-ended proxy scenario” – where there’s an MPTCP proxy in both the > CPE and an aggregation point (for instance). The current charter is that > one end host is MPTCP. > > > > If I can try and summarise the brief discussion yesterday (plus some > side discussions) (please correct my inaccuracies): > > - there are now deployments & products with an MPTCP proxy at > each end, plus planned Broadband Forum work (WT-348 is about to be made > public, with subsequent work to follow). So IETF work is timely (eg help > allow an operator to buy CPE from one vendor and aggregation gateway > from another vendor). I fully agree > > - However, some people object to going beyond the current > charter’s “one-ended proxy scenario” (since the “two-ended proxy” > discourages deployment of MPTCP to all the end hosts, which is the > ultimate goal) I don't think that deploying MPTCP proxies would discourage the deployment of MPTCP end-to-end. This deployment shows that MPTCP is a valid solution to some problems where bandwidth can be aggregated and would convince users that MPTCP would be a good way to solve their problems. The scenario is the following : client ---- CPE --------- HAG -------- server +-------------+ The network operators want to use MPTCP between the CPE and the HAG because MPTCP is from a technical viewpoint the best solution to react to congestion and varying traffic conditions (delay, losses, ...) on the two access networks that are bonded. Since today's clients and servers only support regular TCP, operators want to have : - a TCP<->MPTCP proxy on the CPE - a MPTCP<->TCP proxy on the HAG Note that since the CPE and the HAG support MPTCP by design, they could be MPTCP<->MPTCP proxies and support MPTCP end-to-end as a series of proxied connections. Proxied connections have two advantages in wireless networks compared to regular end-to-end MPTCP connections : - feedback loops are much shorter, which improves performance as shown by the deployment of various TCP optimisers in mobile networks - network operators can apply policies to prefer one network over the other If the IETF works on this problem, we can ensure that the solution will support by design a scenario where MPTCP is used on the client and MPTCP is used as well on the server side. > > - There are two proposals (transparent & plain mode: > draft-boucadair-mptcp-plain-mode-08 & > draft-peirens-mptcp-transparent-00). Are these addressing different use > cases, or do we need to choose between them? would a (potential) charter > item be to standardise existing draft(s), or to solve a problem /scenario? The use case is the same : hybrid access networks. They both rely on MPTCP-MPTCP proxies. The deployment mode is different. The plain-mode draft allows the HAG to be placed anywhere in the network and the destination address of the SYN is used to reach the HAG. The plain-mode option, included in the SYN, contains the final destination of the end-to-end connection. The transparent-mode draft assumes that the HAG is placed on the path to/from the CPE. This implies that there is no need to change the destination address of the SYN to reach the HAG. > > - I think there was mention (by Wim??) that there’s a third > proposal – how does this fit in, or did I get it wrong? > > - One aspect of the plain mode draft is to allow transport of > UDP traffic as well as TCP traffic. I think this is a proposal that > should be discussed separately - for instance it needs INT-area expertise. Agreed, we should focus on the TCP discussion in this WG > I think it would be good to have more discussion before attempting to > write some potential charter text (and then seeing if there’s consensus > for it). > Olivier From nobody Tue Jul 26 11:39:33 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CEA5112D900 for ; Tue, 26 Jul 2016 11:39:30 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.901 X-Spam-Level: X-Spam-Status: No, score=-6.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NxfIpYTB3aze for ; Tue, 26 Jul 2016 11:39:28 -0700 (PDT) Received: from smtp-fr.alcatel-lucent.com (fr-hpida-esg-02.alcatel-lucent.com [135.245.210.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id BEB8C12D902 for ; Tue, 26 Jul 2016 11:39:27 -0700 (PDT) Received: from fr712umx3.dmz.alcatel-lucent.com (unknown [135.245.210.42]) by Websense Email Security Gateway with ESMTPS id BE628115F6EC5; Tue, 26 Jul 2016 18:39:21 +0000 (GMT) Received: from fr711usmtp1.zeu.alcatel-lucent.com (fr711usmtp1.zeu.alcatel-lucent.com [135.239.2.122]) by fr712umx3.dmz.alcatel-lucent.com (GMO-o) with ESMTP id u6QIdPB7019646 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 26 Jul 2016 18:39:25 GMT Received: from FR711WXCHHUB01.zeu.alcatel-lucent.com (fr711wxchhub01.zeu.alcatel-lucent.com [135.239.2.111]) by fr711usmtp1.zeu.alcatel-lucent.com (GMO) with ESMTP id u6QIdO7T013857 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Tue, 26 Jul 2016 20:39:24 +0200 Received: from FR711WXCHMBA07.zeu.alcatel-lucent.com ([169.254.3.82]) by FR711WXCHHUB01.zeu.alcatel-lucent.com ([135.239.2.111]) with mapi id 14.03.0195.001; Tue, 26 Jul 2016 20:39:24 +0200 From: "Henderickx, Wim (Nokia - BE)" To: "philip.eardley@bt.com" , "multipathtcp@ietf.org" Thread-Topic: [multipathtcp] towards a potential work item on two-ended proxy Thread-Index: AQHR520IFs6dQQbeikqEYOlB10fF2w== Date: Tue, 26 Jul 2016 18:39:24 +0000 Message-ID: <88F1B4B9-2D87-4D7C-9C37-DE5D2CDE58E7@nokia.com> Accept-Language: nl-BE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/0.0.0.151008 x-originating-ip: [135.239.27.41] Content-Type: multipart/alternative; boundary="_000_88F1B4B92D874D7C9C37DE5D2CDE58E7nokiacom_" MIME-Version: 1.0 Archived-At: Subject: Re: [multipathtcp] towards a potential work item on two-ended proxy X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path 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([fe80::60a9:abc3:86e6:2541]) by OPEXCLILM7C.corporate.adroot.infra.ftgroup ([fe80::8007:17b:c3b4:d68b%19]) with mapi id 14.03.0301.000; Wed, 27 Jul 2016 10:24:14 +0200 From: To: "Henderickx, Wim (Nokia - BE)" , "philip.eardley@bt.com" , "multipathtcp@ietf.org" Thread-Topic: [multipathtcp] towards a potential work item on two-ended proxy Thread-Index: AQHR520Ib5uHeTMXWkWFrf0cRzIMhqAr0h6A Date: Wed, 27 Jul 2016 08:24:13 +0000 Message-ID: <787AE7BB302AE849A7480A190F8B933008DECFEA@OPEXCLILMA3.corporate.adroot.infra.ftgroup> References: <88F1B4B9-2D87-4D7C-9C37-DE5D2CDE58E7@nokia.com> In-Reply-To: <88F1B4B9-2D87-4D7C-9C37-DE5D2CDE58E7@nokia.com> Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.168.234.5] Content-Type: multipart/alternative; boundary="_000_787AE7BB302AE849A7480A190F8B933008DECFEAOPEXCLILMA3corp_" MIME-Version: 1.0 X-PMX-Version: 6.2.1.2478543, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2016.6.17.114517 Archived-At: Subject: Re: [multipathtcp] towards a potential work item on two-ended proxy X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Jul 2016 08:24:20 -0000 --_000_787AE7BB302AE849A7480A190F8B933008DECFEAOPEXCLILMA3corp_ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 SGkgUGhpbCwgYWxsLA0KDQrigJxUcmFuc3BhcmVudOKAnSBpcyB1c3VhbGx5IHVzZWQgdG8gZGVu b3RlIHRoYXQgdGhlIHByZXNlbmNlIG9mIGFuIChNUFRDUCkgcHJveHkgaXMgbm90IOKAnHZpc2li bGXigJ0gdG8gdGhlIGVuZHBvaW50cy4gVGhpcyBtZWFucywgaW4gcGFydGljdWxhciwgdGhhdCB0 aGUgc291cmNlIElQIGFkZHJlc3Mgb2YgcGFja2V0cyB3b27igJl0IGJlIG1vZGlmaWVkIGJ5IHRo ZSBNUFRDUCBwcm94eSB0aGF0IGludGVyY2VwdHMgdGhlc2UgcGFja2V0cy4gVGhpcyBiZWhhdmlv ciBpcyBzdXBwb3J0ZWQgYnkgKiogYm90aCAqKiB0aGUgcGxhaW4gbW9kZSBhbmQgdHJhbnNwYXJl 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autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=uclouvain.be Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Vy4WE__ksRVE for ; Wed, 27 Jul 2016 01:43:01 -0700 (PDT) Received: from smtp4.sgsi.ucl.ac.be (smtp.sgsi.ucl.ac.be [130.104.5.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 192AB12DD6E for ; Wed, 27 Jul 2016 01:43:01 -0700 (PDT) Received: from mbpobo.local (host-78-129-6-94.dynamic.voo.be [78.129.6.94]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: obonaventure@smtp4.sgsi.ucl.ac.be) by smtp4.sgsi.ucl.ac.be (Postfix) with ESMTPSA id 9CCB367E06A; Wed, 27 Jul 2016 10:42:53 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 smtp4.sgsi.ucl.ac.be 9CCB367E06A DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=uclouvain.be; s=selucl; t=1469608973; bh=Rp0abNgeC3tsvB8PmcFf7YnLVF00P9tZzm9RTqGl+2I=; h=Reply-To:Subject:References:To:From:Date:In-Reply-To; b=eiDiCDuHfsP/j0unufgx+GKyo+MvQhS14ZUWjTH95SNgOKwwnmky80LzQoSS+ij41 10AWcIveXl6MfsNb7pcbV9NSspqAZAP13ieVLqYMJjZ7X+HxuDBlKN+YSIbaI3xCDd 61zC62zzZ1ZF5uraYb3kqaohMIgkjglYJ3hTjKKU= X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.99 at smtp-4 References: To: philip.eardley@bt.com, multipathtcp@ietf.org From: Olivier Bonaventure Message-ID: <9cafc779-502e-cc7f-676c-f6659e207c81@uclouvain.be> Date: Wed, 27 Jul 2016 10:43:14 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Sgsi-Spamcheck: SASL authenticated, X-SGSI-Information: X-SGSI-MailScanner-ID: 9CCB367E06A.A53C6 X-SGSI-MailScanner: Found to be clean X-SGSI-From: olivier.bonaventure@uclouvain.be X-SGSI-Spam-Status: No Archived-At: Subject: Re: [multipathtcp] towards a potential work item on two-ended proxy X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list Reply-To: Olivier.Bonaventure@uclouvain.be List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Jul 2016 08:43:03 -0000 Phil, > So far this discussion has made me a bit confused. Let me ask a specific > question:- > > Why do we need both transparent and plain mode? If these are addressing > different usage scenarios, please explain them (in a paragraph?) The two modes address different deployment scenarios. In the transparent mode, the HAG resides on the path to/from the client. There are many ways in current networks to ensure that the HAG is on the path of the clients that it serves. The transparent mode requires one option to distinguish between end-to-end MPTCP connections (directly established by the client using an MPTCP stack) and proxied connections. During IETF96, the authors of plain-mode and transparent-mode agreed that the transparent-mode draft would use an emply plain mode option to indicate that a connection has been proxied. In the plain-mode, the HAG does not need to be on the path to/from the client. The plain-mode option is used to signal the original source/destination address of the connection depending on the usage. Olivier From nobody Thu Jul 28 05:13:36 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 004D212DF5B for ; Thu, 28 Jul 2016 05:13:35 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.301 X-Spam-Level: X-Spam-Status: No, score=-4.301 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=uclouvain.be Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QNjpcx28qjRo for ; Thu, 28 Jul 2016 05:13:32 -0700 (PDT) Received: from smtp2.sgsi.ucl.ac.be (smtp.sgsi.ucl.ac.be [130.104.5.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A6EC112D180 for ; Thu, 28 Jul 2016 05:13:32 -0700 (PDT) Received: from [130.104.228.52] (unknown [130.104.228.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: duchenef@smtp2.sgsi.ucl.ac.be) by smtp2.sgsi.ucl.ac.be (Postfix) with ESMTPSA id CBBE467DB94 for ; Thu, 28 Jul 2016 14:13:20 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 smtp2.sgsi.ucl.ac.be CBBE467DB94 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=uclouvain.be; s=selucl; t=1469708001; bh=hD7AlEwnoBpQwFUXG+77XZLoXqx0LHnJ/5Pch5IOMWg=; h=To:From:Subject:Date; b=mjNuMlHfAZXuYOk55ugCvS2hZ43aN4DhDNaE7plz5zrC8usw1I8xG5i9ZBHpwEGdD 6leqouxLlViBT8rq5XhCn9tbMYnhi4PZAuqw5vblf2qndyD/DEfaesDz/sWj8v3kwI tAH8JsC+sz4HZamuJRL1HDvKC56cNBfbl9fW8v+k= X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.99 at smtp-2 To: "multipathtcp@ietf.org" From: =?UTF-8?Q?Fabien_Duch=c3=aane?= X-Enigmail-Draft-Status: N1110 Message-ID: <5799F82E.2080306@uclouvain.be> Date: Thu, 28 Jul 2016 14:18:54 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Sgsi-Spamcheck: SASL authenticated, X-SGSI-Information: X-SGSI-MailScanner-ID: CBBE467DB94.AE9A0 X-SGSI-MailScanner: Found to be clean X-SGSI-From: fabien.duchene@uclouvain.be X-SGSI-Spam-Status: No Archived-At: Subject: [multipathtcp] Multipath TCP Address advertisement 1/5 - Load Balancing X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 Jul 2016 12:13:35 -0000 Hello, As agreed in Berlin during IETF96, I'm sending a series of emails to discuss the different contributions proposed inhttps://datatracker.ietf.org/doc/draft-duchene-mptcp-add-addr/ To allow Multipath TCP to operate for servers residing behind unmodified layer 4 load balancers we propose to define the "B" flag in the MP_CAPABLE option. This flag can only be used during the three-way handshake. When this flag is set, it indicates that the source IP address of the segment containing this flag does not accept the establishment of additional subflows for this connection. Otherwise, the source IP address of this segment can be used as destination address to create additional subflows. There are two use cases for this flag : - servers behind a load balancer can use this flag in the SYN+ACK to indicate that the IP address of the load balancer should not be used to establish subflows. Those servers will typically announce one or more other addresses with the ADD_ADDR option. - clients behind firewalls or NAT can use this flag in the SYN. If set in the SYN, the flag MUST also be set in the third ACK to support stateless servers. We would appreciate your feedback on this proposition. Thanks! Fabien From nobody Sun Jul 31 12:36:38 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DFDA212D0E6 for ; Sun, 31 Jul 2016 12:36:36 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.378 X-Spam-Level: X-Spam-Status: No, score=-5.378 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001, T_DKIM_INVALID=0.01] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=fail (2048-bit key) reason="fail (message has been altered)" header.d=apple.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jNPahPbbv-40 for ; Sun, 31 Jul 2016 12:36:35 -0700 (PDT) Received: from mail-in2.apple.com (mail-out2.apple.com [17.151.62.25]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3305E12D0B9 for ; 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Sun, 31 Jul 2016 12:36:34 -0700 (PDT) X-AuditID: 11973e11-f79e76d000002878-fa-579e5342b168 Received: from chive.apple.com (chive.apple.com [17.128.115.15]) by relay6.apple.com (Apple SCV relay) with SMTP id 32.0A.31551.2435E975; Sun, 31 Jul 2016 12:36:34 -0700 (PDT) MIME-version: 1.0 Content-type: multipart/alternative; boundary="Boundary_(ID_ZHPfg6hCIeWIR2DTphWVSA)" Received: from [17.149.235.237] (unknown [17.149.235.237]) by chive.apple.com (Oracle Communications Messaging Server 8.0.1.1.0 64bit (built May 17 2016)) with ESMTPSA id <0OB700J7E2GYK570@chive.apple.com>; Sun, 31 Jul 2016 12:36:34 -0700 (PDT) Sender: cpaasch@apple.com From: Christoph Paasch In-reply-to: <5874e4caebfd40559a0da12ce20a7f7a@rew09926dag03b.domain1.systemhost.net> Date: Sun, 31 Jul 2016 12:36:33 -0700 Message-id: References: <3b62f69a53554789966e8a281a4000d7@rew09926dag03b.domain1.systemhost.net> <82899074-7E27-4792-BBC3-222A4E869B25@apple.com> <5874e4caebfd40559a0da12ce20a7f7a@rew09926dag03b.domain1.systemhost.net> To: Philip Eardley X-Mailer: Apple Mail (2.3124) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrALMWRmVeSWpSXmKPExsUi2FAYpesUPC/c4NplPYvPq6+zWSxbu4LR gcmj7ctkJo8lS34yBTBFcdmkpOZklqUW6dslcGWc/beQpeD9AsaKJ0+WsDUwLull7GLk4JAQ MJFoXcrWxcgJZIpJXLi3Hsjm4hAS2Mso0b79MTNEwkRi+bxjTBCJjYwSx89/YgVJ8AoISvyY fI8FxGYWCJNoXXmWBaLoF6PEvnfnwMYKC0hKdN+5wwxhO0jc2bCNHcRmE9CSeHu7HWwQp0C4 xMklt5hAbBYBVYktF46DXccsYCwxZaYRxC4bieczFzNCzL/CKHFzyluw+SJAc3qWXGSCuFRW 4snJRSwQ9gk2iQnXZSYwCs9CcussJLfOAluhLjFlSi5EWFviybsLrBC2msTC34uYkMUXMLKt YhTKTczM0c3MM9JLLCjISdVLzs/dxAiKkul2gjsYj6+yOsQowMGoxMPLwTQvXIg1say4MvcQ ozQHi5I4b6LsrHAhgfTEktTs1NSC1KL4otKc1OJDjEwcnFINjJ2++wweFcySuvaSiW3u6bjf nznzlSbLRj/evs8o/DrfsZdlmWFsWw+kZV91WLTziIaUrPG9uzqfKx9mz15wPr7gLMMvzfoZ ri3dulNfODCLJ82aUVVrPDes+8fedQX3nhcWVopGVVY/VZ5kw++zjX/2u1fL/C1XaUivv6vB 8bk6OdtQ58js+0osxRmJhlrMRcWJAFqplHxzAgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrDIsWRmVeSWpSXmKPExsUi2FDMr+sUPC/coH2WlsXn1dfZLJatXcHo wOTR9mUyk8eSJT+ZApiiuGxSUnMyy1KL9O0SuDLO/lvIUvB+AWPFkydL2BoYl/QydjFyckgI mEgsn3eMCcIWk7hwbz1bFyMXh5DARkaJ4+c/sYIkeAUEJX5MvscCYjMLhEm0rjzLAlH0i1Fi 37tzbCAJYQFJie47d5ghbAeJOxu2sYPYbAJaEm9vt4MN4hQIlzi55BbYNhYBVYktF44DXcEB NNRYYspMI4hdNhLPZy5mhJh/hVHi5pS3YPNFgOb0LLkIdamsxJOTi1gmMArMQnLfLCT3zQIb qy4xZUouRFhb4sm7C6wQtprEwt+LmJDFFzCyrWIUKErNSaw000ssKMhJ1UvOz93ECA7swqgd jA3LrQ4xCnAwKvHwcjDNCxdiTSwrrsw9xCjBwawkwhvoDRTiTUmsrEotyo8vKs1JLT7EOJER 6MmJzFKiyfnAuMsriTc0MTEwMTY2MzY2NzGnpbCSOO/6mtnhQgLpiSWp2ampBalFMEcxcXBK NTD6eb7+7/6Vb5lz0iQeYYuCrc5tH2bI61popLrOin17Z/86tm0F+2qE3qyrenPx0K/DOiF7 Q9OP+WxpuLWwwmxyUGvTtUu2Go9OpVyUrjBbybW7pc3gXnu/gNW1M3O/67/oCrCX4JoaKsdY HnLTMtPI+AGn1LoLb+7oSv3+f/PEdA3NLTIm1TVKLMUZiYZazEXFiQDfegoV3wIAAA== Archived-At: Cc: MultiPath TCP - IETF WG Subject: Re: [multipathtcp] potential new work item on MPTCP API X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 31 Jul 2016 19:36:37 -0000 --Boundary_(ID_ZHPfg6hCIeWIR2DTphWVSA) Content-type: text/plain; charset=utf-8 Content-transfer-encoding: quoted-printable > On Jul 26, 2016, at 7:35 AM, philip.eardley@bt.com wrote: >=20 > Christoph, > https://tools.ietf.org/html/rfc6897#section-5.3 = is =E2=80=9CSockets = Interface Extensions by the Basic MPTCP API=E2=80=9D > (also https://tools.ietf.org/html/rfc6897#appendix-A = =E2=80=9CAppendix A. = Requirements on a Future Advanced MPTCP API=E2=80=9D) Ok, I see. Fair enough. Extension to RFC6897 seems fine to me then. Cheers, Christoph > phil > =20 > From: cpaasch@apple.com [mailto:cpaasch@apple.com]=20 > Sent: 22 July 2016 09:48 > To: Eardley,PL,Philip,TUB8 R > Cc: MultiPath TCP - IETF WG > Subject: Re: [multipathtcp] potential new work item on MPTCP API > =20 > Hello, > =20 > On Jul 21, 2016, at 5:43 PM, philip.eardley@bt.com = wrote: > Yesterday Olivier presented about his & Benjamin=E2=80=99s recent work = on MPTCP socket api. We didn=E2=80=99t have much discussion whether to = add this to the charter. One comment was that any work should build on = /reference RFC6897. > https://www.ietf.org/proceedings/96/slides/slides-96-mptcp-4.pdf = > Please can you comment whether you see this as a useful work item, or = you think it shouldn=E2=80=99t be worked on, or how it should be adapted = to something you think the WG should work on. > =20 > yes, I think it is a very useful work item and am willing to = contribute to this work. > =20 > I'm not sure whether this can be seen as an update to 6897. I'm under = the impression that 6897 takes a different approach, giving users a = high-level overview of how using MPTCP might look like to an application = that is talking to a TCP-socket (which happens to end up using MPTCP). > =20 > Olivier's work seems to rather make MPTCP entirely explicit to the = application. So, I think both works take a different approach. >=20 >=20 > To help prompt the discussion, here=E2=80=99s a very first version of = some possible charter text > RFC6897 defined an optional, basic application interface for = MPTCP-aware applications, including a set of socket operations. Now = there is more experience of how MPTCP is being used, the WG will = re-visit this work, and consider adding more advanced socket operations. > =20 > RFC6897 was Informational =E2=80=93 would this new Milestone be = Informational or Experimental? > =20 > I think it should be Informational. > =20 > =20 > Christoph >=20 >=20 > =20 > Thanks > phil > =20 > Philip Eardley > Research and Innovation > This email contains BT information, which may be privileged or = confidential. It's meant only for the individual(s) or entity named = above. If you're not the intended recipient, note that disclosing, = copying, distributing or using this information is prohibited. If you've = received this email in error, please let me know immediately on the = email address above. Thank you. > We monitor our email system, and may record your emails. > British Telecommunications plc > Registered office: 81 Newgate Street London EC1A 7AJ > Registered in England no: 1800000 > =20 > _______________________________________________ > multipathtcp mailing list > multipathtcp@ietf.org > https://www.ietf.org/mailman/listinfo/multipathtcp = --Boundary_(ID_ZHPfg6hCIeWIR2DTphWVSA) Content-type: text/html; charset=utf-8 Content-transfer-encoding: quoted-printable
On Jul 26, 2016, at 7:35 AM, philip.eardley@bt.com= wrote:

Christoph,
https://tools.ietf.org/html/rfc6897#section-5.3 is =E2=80=9CSockets = Interface Extensions by the Basic MPTCP API=E2=80=9D
(also https://tools.ietf.org/html/rfc6897#appendix-A =E2=80=9CAppendix A. = Requirements on a Future Advanced MPTCP = API=E2=80=9D)

Ok, I see. Fair enough. Extension to RFC6897 seems = fine to me then.


Cheers,
Christoph

phil
 
From: cpaasch@apple.com [mailto:cpaasch@apple.com] 
Sent: 22 = July 2016 09:48
To: Eardley,PL,Philip,TUB8 R = <philip.eardley@bt.com>
Cc: MultiPath TCP - IETF WG = <multipathtcp@ietf.org>
Subject: Re: [multipathtcp] = potential new work item on MPTCP API
 
Hello,
 
On = Jul 21, 2016, at 5:43 PM, philip.eardley@bt.com wrote:
Yesterday Olivier = presented about his & Benjamin=E2=80=99s recent work on MPTCP socket = api. We didn=E2=80=99t have much discussion whether to add this to the = charter. One comment was that any work should build on /reference = RFC6897.
https://www.ietf.org/proceedings/96/slides/slides-96-mptcp-4.pd= f
Please can you comment = whether you see this as a useful work item, or you think it shouldn=E2=80=99= t be worked on, or how it should be adapted to something you think the = WG should work on.
 
yes, I think it is a very useful work item and am = willing to contribute to this work.
 
I'm not sure whether this can be seen as an update to = 6897. I'm under the impression that 6897 takes a different approach, = giving users a high-level overview of how using MPTCP might look like to = an application that is talking to a TCP-socket (which happens to end up = using MPTCP).
 
Olivier's work seems to rather make MPTCP entirely = explicit to the application. So, I think both works take a different = approach.


To help prompt the = discussion, here=E2=80=99s a very first version of some possible charter = text
RFC6897 defined an = optional, basic application interface for MPTCP-aware applications, = including a set of socket operations. Now there is more experience of = how MPTCP is being used, the WG will re-visit this work, and consider = adding more advanced socket operations.
 
RFC6897 was Informational =E2=80=93 would this = new Milestone be Informational or Experimental?
 
I think it should be Informational.
 
 
Christoph


 
Thanks
phil
 
Philip Eardley
Research and = Innovation
This email contains BT information, which may be privileged = or confidential. It's meant only for the individual(s) or entity named = above. If you're not the intended recipient, note that disclosing, = copying, distributing or using this information is prohibited. If you've = received this email in error, please let me know immediately on the = email address above. Thank you.
We monitor our email = system, and may record your emails.
British Telecommunications = plc
Registered office: 81 Newgate Street London EC1A = 7AJ
Registered in England no: 1800000
 
_______________________________________________multipathtcp mailing list
multipathtcp@ietf.org
https://www.ietf.org/mailman/listinfo/multipathtcp

= --Boundary_(ID_ZHPfg6hCIeWIR2DTphWVSA)-- From nobody Sun Jul 31 14:02:53 2016 Return-Path: X-Original-To: multipathtcp@ietfa.amsl.com Delivered-To: multipathtcp@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7231512D0FE for ; Sun, 31 Jul 2016 14:02:52 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.508 X-Spam-Level: X-Spam-Status: No, score=-5.508 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id asWC3sV6UAeF for ; Sun, 31 Jul 2016 14:02:51 -0700 (PDT) Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 6E23212D0D8 for ; Sun, 31 Jul 2016 14:02:50 -0700 (PDT) Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id u6VL2kkN001698 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Sun, 31 Jul 2016 21:02:47 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id u6VL2jkS017297 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Sun, 31 Jul 2016 21:02:46 GMT Received: from abhmp0016.oracle.com (abhmp0016.oracle.com [141.146.116.22]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id u6VL2hET003446 for ; Sun, 31 Jul 2016 21:02:45 GMT Received: from [192.168.1.8] (/73.162.15.142) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 31 Jul 2016 14:02:43 -0700 To: multipathtcp@ietf.org References: <9cafc779-502e-cc7f-676c-f6659e207c81@uclouvain.be> From: Rao Shoaib Message-ID: <3100ff74-0c7d-1815-03a1-aa4cec36d1e4@oracle.com> Date: Sun, 31 Jul 2016 14:02:38 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: <9cafc779-502e-cc7f-676c-f6659e207c81@uclouvain.be> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] Archived-At: Subject: Re: [multipathtcp] towards a potential work item on two-ended proxy X-BeenThere: multipathtcp@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Multi-path extensions for TCP List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 31 Jul 2016 21:02:52 -0000 On 07/27/2016 01:43 AM, Olivier Bonaventure wrote: > Phil, > >> So far this discussion has made me a bit confused. Let me ask a specific >> question:- >> >> Why do we need both transparent and plain mode? If these are addressing >> different usage scenarios, please explain them (in a paragraph?) > > The two modes address different deployment scenarios. > > In the transparent mode, the HAG resides on the path to/from the > client. There are many ways in current networks to ensure that the HAG > is on the path of the clients that it serves. The transparent mode > requires one option to distinguish between end-to-end MPTCP > connections (directly established by the client using an MPTCP stack) > and proxied connections. During IETF96, the authors of plain-mode and > transparent-mode agreed that the transparent-mode draft would use an > emply plain mode option to indicate that a connection has been proxied. Why is it necessary to know that the connection has been proxied ? > > In the plain-mode, the HAG does not need to be on the path to/from the > client. The plain-mode option is used to signal the original > source/destination address of the connection depending on the usage. Since we seem to be only considering TCP, will the protocol field be removed from the draft ? Shoaib > > > > > Olivier > > _______________________________________________ > multipathtcp mailing list > multipathtcp@ietf.org > https://www.ietf.org/mailman/listinfo/multipathtcp