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localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 448441A8A62; Sat, 1 Aug 2015 20:46:15 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -101.999 X-Spam-Level: X-Spam-Status: No, score=-101.999 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, SPF_PASS=-0.001, USER_IN_WHITELIST=-100] autolearn=ham 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 cacZ4KxhcjZa; Sat, 1 Aug 2015 20:46:12 -0700 (PDT) Received: from mail-ob0-x232.google.com (mail-ob0-x232.google.com [IPv6:2607:f8b0:4003:c01::232]) (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 D00761A8A61; Sat, 1 Aug 2015 20:46:11 -0700 (PDT) Received: by obnw1 with SMTP id w1so78393330obn.3; Sat, 01 Aug 2015 20:46:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=XFiozXlLSxVqmxlST3ti+bb+FozPyy+0uekT1sCn4KQ=; b=HRjxHMW/swNF8t0QiGpr1Ck57E/LqgWEYUVc52NgUcTNo36qUtrDjwW4fHP96YDzlJ falVLg+ZTS5qCH+WHW0KVv6KoinGmD5P/r0AoO2GcMUIbSbuWY+CjpYqzTUf8ks8EoAa eV5Ry572p7/tanZx6ritbUBGkcrnOte6tKluwMc1dlFeXnnaX6jhaaR2wWNDIoHVHXXO BK20a3MvC3FRFrynvPSdM30s+s4zjMAAMRWUka24B73n6kuXFtxqj+Q58q8OyvwMq6+7 TJjyyk3P+PY1mGoTzQZfPBI83UbJJUqJWaI15Rk7NZH3tqEKtXKRASZK444mHi7mcuqB 4MaQ== MIME-Version: 1.0 X-Received: by 10.182.29.68 with SMTP id i4mr10408238obh.57.1438487171324; Sat, 01 Aug 2015 20:46:11 -0700 (PDT) Received: by 10.60.41.99 with HTTP; Sat, 1 Aug 2015 20:46:11 -0700 (PDT) In-Reply-To: References: Date: Sat, 1 Aug 2015 23:46:11 -0400 Message-ID: From: Alia Atlas To: "Acee Lindem (acee)" Content-Type: multipart/alternative; boundary=001a11c2993adc6001051c4be4db Archived-At: Cc: "draft-ietf-ospf-prefix-link-attr@ietf.org" , OSPF List Subject: Re: [OSPF] AD review of draft-ietf-ospf-prefix-link-attr-06 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 02 Aug 2015 03:46:15 -0000 --001a11c2993adc6001051c4be4db Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi Acee, On Sat, Aug 1, 2015 at 5:54 PM, Acee Lindem (acee) wrote: > Hi Alia, > Thanks for the review. > > From: Alia Atlas > Date: Thursday, July 30, 2015 at 2:22 PM > To: "draft-ietf-ospf-prefix-link-attr@ietf.org" < > draft-ietf-ospf-prefix-link-attr@ietf.org>, OSPF WG List , > shraddha > Subject: AD review of draft-ietf-ospf-prefix-link-attr-06 > > As is customary, I have done my AD review > of draft-ietf-ospf-prefix-link-attr-06 before asking for IETF Last Call. > First, thank you very much for your hard work on this draft. It is lovel= y > to see needed work move quickly and have numerous interoperable > implementations. > > I do have a number of minor issues on the draft - but all on the level of > clarifications. Therefore, I have requested that IETF Last Call be > started. Assuming good responsiveness on the part of the authors, a > revised version that addresses my concerns can be on the IESG telechat on > August 20. > > I do note that there are 6 authors on this draft. Please provide input - > since I know that you all well aware that the limit is normally at most 5= . > One can identify a primary editor or two. This isn't pure process; the > more authors listed on a draft, the longer it takes to handle AUTH48 - > particularly when some are not as involved and do not respond rapidly and > with full context. I make no judgement about the authors of this draft - > who have clearly moved from pulling out the idea into a stand-alone draft > and had a number of different implementations. > > > We=E2=80=99ve already made one pass on pruning the authors and since we a= re only > one over, I=E2=80=99d like to leave it as is. > That's fine. I hear that you have given it consideration and everyone is actively participating and will not cause delays during AUTH48. My review comments are below. Thanks again for your hard work in getting > this far! > > Minor issues: > > 1) On p. 6, it says " AF Address family for the prefix. Currently, the > only supported value is 0 for IPv4 unicast." Please clarify VERY > CLEARLY why this restriction exists. Not everyone reading this will > be familiar with support for IPv6 in various protocols and we are really > finally heading towards lots more IPv6. > > > I will clarify. There are basically two reasons. The first is that we > really didn=E2=80=99t want to specify more than was necessary in this bas= e > document. The second is that we have OSPFv3 for IPv6. So, you may ask why > we have this at all. The reason is that we didn=E2=80=99t want to rule ou= t > extension of OSPFv2 completely. > Well, it's easier to specify it for IPv6 & have it not used than to go back and need to do another draft to add it later. But this is a judgement call on your part. Thanks for clarifying the reasoning in the draft. 2) On p. 6 and 8.: > "The Instance field is an arbitrary value used to maintain multiple > Extended Prefix Opaque LSAs. A maximum of 16777216 Extended Prefix > Opaque LSAs may be sourced by a single OSPF instance.": This doesn't > really give normative behavior. I assume that what you mean is that > the advertising router has a number space for the Instance which has > no significance outside of that advertising router and can have > arbitrary values allocated from it. Each of these LSAs is identified > uniquely by its Instance number. Please provide good text for what > MUST be done and indicate that the value may be used for tie-breaking > ("In this case, the Extended-Prefix-TLV in the Extended Prefix Opaque > LSA with the smallest Instance is used by receiving OSPFv2 Routers. ") > and there's an assumption that the values will be allocated from > smallest to largest. > > > I will clarify this. However, I don=E2=80=99t want to specify any assumpt= ion about > allocation. > I wasn't trying to put in assumptions about the allocation, but if you read further in the draft, there are assumptions in the tie-breaking based upon lower instance values being allocated first. Consistency is preferred. :-) > 3) On p. 6 for the Route Type, it would be useful to have a reference to > where these type values are pulled from. I'd also like to see some > text about whether other values could be valid in the future and how > so. For instance, I'm assuming that you are basically pulling the > values from the OSPFv2 Link State (LS) Type > ( > http://www.iana.org/assignments/ospfv2-parameters/ospfv2-parameters.xhtml= #ospfv2-parameters-5 > ) > - so perhaps you could simply say so or clarify for what are valid > values. > > > Is there an example of referencing an IANA directory? I could also > reference RFC 2823 and RFC 3101 directly. > I was just thinking of referencing the name of the IANA registry; having the URL would be fine in the reference section, I think. If not, I'm sure the RFC Editor will let us all know ;-) 4) On p. 9: For Link-Type, could you also put a reference to the IANA > registry? I'd prefer it to be clear that if (unlikely as it seems) > there were a new Link-Type added, it would apply here too. > > > Sure. We=E2=80=99ll do the same. > > > > 5) In Sec 5, pleaes add an RFC Editor note that Section 5 will be removed > upon publication. That's the intent wtih RFC 6982. Thanks for > including this section in the draft. If the information wants to move > to the OSPF WG wiki, that would give it a place to survive after this > draft is submitted to the RFC Editor. > > > Ok - I need to hunt down this OSPF Wiki we talked about in Prague as well= . > The IDR one is at http://trac.tools.ietf.org/wg/idr/trac/wiki. The OSPF one would be http://trac.tools.ietf.org/wg/ospf/trac/wiki but it looks like it isn't there. You may need to contact the tools team (webmaster@tools.ietf.org or more usefully tools-discuss@ietf.org). Once it is created, I can also add it to the charter page on the datatracker - along with any other URLs that might be useful. Thanks, Alia > > Nits: > > 6) In Sec 2, there's an "e.g., mapping server deployment". Could you add > a reference? This tells me nothing... > > > Sure - it is the segment routing architecture document. > > > > 7) In Sec 2, In the packet format, could you clarify Opaque type =3D 7? S= ame > for on p.8 for opaque type =3D 8 ? > > > Sure. > > > 8) Since you are creating the registry for the TLVs, please clearly state > that value 1 is being used earlier - instead of "suggested value" as > on p.9 > > > Sure. > > Thanks, > Acee > > > > Regards, > Alia > > --001a11c2993adc6001051c4be4db Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Acee,

On Sat, Aug 1, 2015 at 5:54 PM, Acee Lindem (acee) <acee@cisco.co= m> wrote:
Hi Alia,=C2=A0
Thanks for the review.=C2=A0

From: Alia Atlas <akatlas@gmail.com>
Date: Thursday, July 30, 2015 at 2:= 22 PM
To: "draft-ietf-ospf-prefi= x-link-attr@ietf.org" <draft-ietf-ospf-prefix-link-attr@iet= f.org>, OSPF WG List <ospf@i= etf.org>, shraddha <shraddha@juniper.net>
Subject: AD review of draft-ietf-os= pf-prefix-link-attr-06

As is customary, I have done my AD review of=C2=A0draft-ie= tf-ospf-prefix-link-attr-06 before asking for IETF Last Call.=C2=A0 First, = thank you very much for your hard work on this draft.=C2=A0 It is lovely to= see needed work move quickly and have numerous interoperable implementations.

I do have a number of minor issues on the draft - but all on the level= of clarifications.=C2=A0 Therefore, I have requested that IETF Last Call b= e started.=C2=A0 Assuming good responsiveness on the part of the authors, a= revised version that addresses my concerns can be on the IESG telechat on August 20.

I do note that there are 6 authors on this draft.=C2=A0 Please provide= input - since I know that you all well aware that the limit is normally at= most 5.=C2=A0 One can identify a primary editor or two.=C2=A0 This isn'= ;t pure process; the more authors listed on a draft, the longer it takes to handle AUTH48 - particularly when some are not as i= nvolved and do not respond rapidly and with full context.=C2=A0 I make no j= udgement about the authors of this draft - who have clearly moved from pull= ing out the idea into a stand-alone draft and had a number of different implementations.

We=E2=80=99ve already made one pass on pruning the authors and since w= e are only one over, I=E2=80=99d like to leave it as is.=C2=A0
<= /blockquote>

That's fine.=C2=A0 I hear that you have= given it consideration and everyone is actively participating and will not= cause delays during AUTH48.=C2=A0

My review comments are below. = =C2=A0 Thanks again for your hard work in getting this far!

Minor issues:

1) On p. 6, it says " AF Address family for the prefix.=C2=A0 Cur= rently, the
only supported value is 0 for IPv4 unicast." =C2=A0Please clarify= VERY
CLEARLY why this restriction exists.=C2=A0 Not everyone reading this w= ill
be familiar with support for IPv6 in various protocols and we are real= ly
finally heading towards lots more IPv6.

I will clarify. There are basically two reasons. The first is t= hat we really didn=E2=80=99t want to specify more than was necessary in thi= s base document. The second is that we have OSPFv3 for IPv6. So, you may as= k why we have this at all. The reason is that we didn=E2=80=99t want to rule out extension of OSPFv2 completely.=C2=A0

Well, it's easier to specify it= for IPv6 & have it not used than to go back and need to do another dra= ft to add it later.=C2=A0 But this is a judgement call
on your pa= rt.=C2=A0 Thanks for clarifying the reasoning in the draft.=C2=A0

2) On p. 6 and 8.:
"The Instance field is an arbitrary value used to maintain multip= le
Extended Prefix Opaque LSAs.=C2=A0 A maximum of 16777216 Extended Pref= ix
Opaque LSAs may be sourced by a single OSPF instance.": This does= n't
really give normative behavior.=C2=A0 I assume that what you mean is t= hat
the advertising router has a number space for the Instance which has
no significance outside of that advertising router and can have
arbitrary values allocated from it.=C2=A0 Each of these LSAs is identi= fied
uniquely by its Instance number.=C2=A0 Please provide good text for wh= at
MUST be done and indicate that the value may be used for tie-breaking<= /div>
("In this case, the Extended-Prefix-TLV in the Extended Prefix Op= aque
LSA with the smallest Instance is used by receiving OSPFv2 Routers. &q= uot;)
and there's an assumption that the values will be allocated from
smallest to largest.

I will clarify this. However, I don=E2=80=99t want to specify a= ny assumption about allocation.=C2=A0

I wasn't trying to put in assumptions about the allocation, but = if you read further in
the draft, there are assumptions in the ti= e-breaking based upon lower instance values
being allocated first= .=C2=A0 Consistency is preferred. :-)
=C2=A0
3) On p. 6 for the Route T= ype, it would be useful to have a reference to
where these type values are pulled from.=C2=A0 I'd also like to se= e some
text about whether other values could be valid in the future and how
so.=C2=A0 For instance, I'm assuming that you are basically pullin= g the
values from the OSPFv2 Link State (LS) Type
- so perhaps you could simply say so or clarify for what are valid
values.


section= , I think. If not, I'm sure the RFC Editor will let us all know ;-)


4) On p. 9: For Link-Type, could you also put a reference to the IANA<= /div>
registry?=C2=A0 I'd prefer it to be clear that if (unlikely as it = seems)
there were a new Link-Type added, it would apply here too.

Sure. We=E2=80=99ll do the same.=C2=A0



5) In Sec 5, pleaes add an RFC Editor note that Section 5 will be remo= ved
upon publication.=C2=A0 That's the intent wtih RFC 6982.=C2=A0 Tha= nks for
including this section in the draft.=C2=A0 If the information wants to= move
to the OSPF WG wiki, that would give it a place to survive after this<= /div>
draft is submitted to the RFC Editor.

Ok - I need to hunt down this OSPF Wiki we talked about in Prag= ue as well.=C2=A0

be http://trac.tools.ie= tf.org/wg/ospf/trac/wiki but it looks like it isn't there.=C2=A0 Yo= u may
need to contact the tools team (webmaster@tools.ietf.org or more usefully tools-discuss@ietf.org).

Once it is created, I can also add it to the charter page on the d= atatracker - along with
any other URLs that might be useful.

Thanks,
Alia

Nits:

6) In Sec 2, there's an "e.g., mapping server deployment"= ;.=C2=A0 Could you add
a reference?=C2=A0 This tells me nothing...

Sure - it is the segment routing architecture document.=C2=A0


=C2=A0


7) In Sec 2, In the packet format, could you clarify Opaque type =3D 7= ? Same
for on p.8 for opaque type =3D 8 ?

Sure.=C2=A0


8) Since you are creating the registry for the TLVs, please clearly st= ate
that value 1 is being used earlier - instead of "suggested value&= quot; as
on p.9

Sure.=C2=A0

Thanks,
Acee=C2=A0



Regards,
Alia

--001a11c2993adc6001051c4be4db-- From nobody Sat Aug 1 20:53:12 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3AE031A8A72; Sat, 1 Aug 2015 20:53:11 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -101.999 X-Spam-Level: X-Spam-Status: No, score=-101.999 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, SPF_PASS=-0.001, USER_IN_WHITELIST=-100] autolearn=ham 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 8-WlxC-aB_-M; Sat, 1 Aug 2015 20:53:08 -0700 (PDT) Received: from mail-oi0-x22f.google.com (mail-oi0-x22f.google.com [IPv6:2607:f8b0:4003:c06::22f]) (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 096821A8A6B; Sat, 1 Aug 2015 20:53:08 -0700 (PDT) Received: by oibn4 with SMTP id n4so56112724oib.3; Sat, 01 Aug 2015 20:53:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=ccMUsGbASde9LxK2RgsPWLPNOIv13dVOvio6TjKkWTg=; b=NW2YZtyeej4jrx+0iHwSdmnCEnXrFenVAREg6uROZ/joBExsUbbUWYBZUQMJiTdKNp S9yPLNR68cSyLXjgGJBfLsO/38k++6Qa6TWcszISLGjd81TTG8M6rxVgLtJ0YbiE289a Zf2toNQjIkfBBfbfpPuKEKmxF4rwUNO8Y0AH2pNK4Br8NCfkfBatn2tlgkRViy84Kqr3 AM/kUI3GO0659k1jrWf49v1SQDI2cTvtvZDmgQ/O0FnCR6IIjp54GdtEmLgrbZsgF/CN ZEyaX0x//RNfeE7Wg+0z0/Xxk5dGDwVpVqOm2a8KzQ2A6uF5bRtNoBp0nb9eqVC8+j8l d9ZQ== MIME-Version: 1.0 X-Received: by 10.202.87.22 with SMTP id l22mr10252579oib.91.1438487587551; Sat, 01 Aug 2015 20:53:07 -0700 (PDT) Received: by 10.60.41.99 with HTTP; Sat, 1 Aug 2015 20:53:07 -0700 (PDT) In-Reply-To: <0C25913C-059E-44B8-BEFE-2845482FE2BA@lindem.com> References: <0C25913C-059E-44B8-BEFE-2845482FE2BA@lindem.com> Date: Sat, 1 Aug 2015 23:53:07 -0400 Message-ID: From: Alia Atlas To: Acee Lindem Content-Type: multipart/alternative; boundary=001a113d6e42ab8202051c4bfd13 Archived-At: Cc: "draft-ietf-ospf-prefix-link-attr@ietf.org" , OSPF List Subject: Re: [OSPF] AD review of draft-ietf-ospf-prefix-link-attr-06 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 02 Aug 2015 03:53:11 -0000 --001a113d6e42ab8202051c4bfd13 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi Acee, On Sat, Aug 1, 2015 at 6:51 PM, Acee Lindem wrote: > Hi Alia, > See a couple inlines. > > On Aug 1, 2015, at 5:54 PM, Acee Lindem (acee) wrote: > > Hi Alia, > Thanks for the review. > > From: Alia Atlas > Date: Thursday, July 30, 2015 at 2:22 PM > To: "draft-ietf-ospf-prefix-link-attr@ietf.org" < > draft-ietf-ospf-prefix-link-attr@ietf.org>, OSPF WG List , > shraddha > Subject: AD review of draft-ietf-ospf-prefix-link-attr-06 > > As is customary, I have done my AD review > of draft-ietf-ospf-prefix-link-attr-06 before asking for IETF Last Call. > First, thank you very much for your hard work on this draft. It is lovel= y > to see needed work move quickly and have numerous interoperable > implementations. > > I do have a number of minor issues on the draft - but all on the level of > clarifications. Therefore, I have requested that IETF Last Call be > started. Assuming good responsiveness on the part of the authors, a > revised version that addresses my concerns can be on the IESG telechat on > August 20. > > I do note that there are 6 authors on this draft. Please provide input - > since I know that you all well aware that the limit is normally at most 5= . > One can identify a primary editor or two. This isn't pure process; the > more authors listed on a draft, the longer it takes to handle AUTH48 - > particularly when some are not as involved and do not respond rapidly and > with full context. I make no judgement about the authors of this draft - > who have clearly moved from pulling out the idea into a stand-alone draft > and had a number of different implementations. > > > We=E2=80=99ve already made one pass on pruning the authors and since we a= re only > one over, I=E2=80=99d like to leave it as is. > > > > My review comments are below. Thanks again for your hard work in gettin= g > this far! > > Minor issues: > > 1) On p. 6, it says " AF Address family for the prefix. Currently, the > only supported value is 0 for IPv4 unicast." Please clarify VERY > CLEARLY why this restriction exists. Not everyone reading this will > be familiar with support for IPv6 in various protocols and we are really > finally heading towards lots more IPv6. > > > I will clarify. There are basically two reasons. The first is that we > really didn=E2=80=99t want to specify more than was necessary in this bas= e > document. The second is that we have OSPFv3 for IPv6. So, you may ask why > we have this at all. The reason is that we didn=E2=80=99t want to rule ou= t > extension of OSPFv2 completely. > > > > > 2) On p. 6 and 8.: > "The Instance field is an arbitrary value used to maintain multiple > Extended Prefix Opaque LSAs. A maximum of 16777216 Extended Prefix > Opaque LSAs may be sourced by a single OSPF instance.": This doesn't > really give normative behavior. I assume that what you mean is that > the advertising router has a number space for the Instance which has > no significance outside of that advertising router and can have > arbitrary values allocated from it. Each of these LSAs is identified > uniquely by its Instance number. Please provide good text for what > MUST be done and indicate that the value may be used for tie-breaking > ("In this case, the Extended-Prefix-TLV in the Extended Prefix Opaque > LSA with the smallest Instance is used by receiving OSPFv2 Routers. ") > and there's an assumption that the values will be allocated from > smallest to largest. > > > I will clarify this. However, I don=E2=80=99t want to specify any assumpt= ion about > allocation. > > > > 3) On p. 6 for the Route Type, it would be useful to have a reference to > where these type values are pulled from. I'd also like to see some > text about whether other values could be valid in the future and how > so. For instance, I'm assuming that you are basically pulling the > values from the OSPFv2 Link State (LS) Type > ( > http://www.iana.org/assignments/ospfv2-parameters/ospfv2-parameters.xhtml= #ospfv2-parameters-5 > ) > - so perhaps you could simply say so or clarify for what are valid > values. > > > Is there an example of referencing an IANA directory? I could also > reference RFC 2823 and RFC 3101 directly. > > > I am referencing this URL directly. Given all the YANG documents I=E2=80= =99m > reviewing or even writing, this seems very natural ;^) > Sure - I was suggesting the name of the registry also. 4) On p. 9: For Link-Type, could you also put a reference to the IANA > registry? I'd prefer it to be clear that if (unlikely as it seems) > there were a new Link-Type added, it would apply here too. > > > Sure. We=E2=80=99ll do the same. > > > > 5) In Sec 5, pleaes add an RFC Editor note that Section 5 will be removed > upon publication. That's the intent wtih RFC 6982. Thanks for > including this section in the draft. If the information wants to move > to the OSPF WG wiki, that would give it a place to survive after this > draft is submitted to the RFC Editor. > > > Ok - I need to hunt down this OSPF Wiki we talked about in Prague as well= . > > > > Nits: > > 6) In Sec 2, there's an "e.g., mapping server deployment". Could you add > a reference? This tells me nothing... > > > Sure - it is the segment routing architecture document. > > > > 7) In Sec 2, In the packet format, could you clarify Opaque type =3D 7? S= ame > for on p.8 for opaque type =3D 8 ? > > > Sure. > > > I guess you want me to reference the Opaque draft. We have early IANA > allocation for both these values but that will be completely irrelevant > once this is published. > Sure - it'd be nice to have a reference - but all I was asking was for the figure to be updated to show the value of the Opaque Type since it is known= . Thanks, Alia > Thanks, > Acee > > > > > 8) Since you are creating the registry for the TLVs, please clearly state > that value 1 is being used earlier - instead of "suggested value" as > on p.9 > > > Sure. > > Thanks, > Acee > > > > Regards, > Alia > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www.ietf.org/mailman/listinfo/ospf > > > --001a113d6e42ab8202051c4bfd13 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Acee,

On Sat, Aug 1, 2015 at 6:51 PM, Acee Lindem &= lt;acee.lindem@g= mail.com> wrote:
Hi Alia,=C2=A0
See a couple inlines.=C2=A0<= /div>

On= Aug 1, 2015, at 5:54 PM, Acee Lindem (acee) <acee@cisco.com> wrote:

Hi Alia,=C2=A0
Thanks for the review.=C2=A0

From: Alia Atlas <akatlas@gmail.com>
Date: Thursday, July 30, 2015 at 2:= 22 PM
To: "draft-ietf-ospf-prefi= x-link-attr@ietf.org" <draft-ietf-ospf-prefix-link-attr@iet= f.org>, OSPF WG List <ospf@i= etf.org>, shraddha <shraddha@juniper.net>
Subject: AD review of draft-ietf-os= pf-prefix-link-attr-06

As is customary, I have done my AD review of=C2=A0draft-ie= tf-ospf-prefix-link-attr-06 before asking for IETF Last Call.=C2=A0 First, = thank you very much for your hard work on this draft.=C2=A0 It is lovely to= see needed work move quickly and have numerous interoperable implementations.

I do have a number of minor issues on the draft - but all on the level= of clarifications.=C2=A0 Therefore, I have requested that IETF Last Call b= e started.=C2=A0 Assuming good responsiveness on the part of the authors, a= revised version that addresses my concerns can be on the IESG telechat on August 20.

I do note that there are 6 authors on this draft.=C2=A0 Please provide= input - since I know that you all well aware that the limit is normally at= most 5.=C2=A0 One can identify a primary editor or two.=C2=A0 This isn'= ;t pure process; the more authors listed on a draft, the longer it takes to handle AUTH48 - particularly when some are not as i= nvolved and do not respond rapidly and with full context.=C2=A0 I make no j= udgement about the authors of this draft - who have clearly moved from pull= ing out the idea into a stand-alone draft and had a number of different implementations.

We=E2=80=99ve already made one pass on pruning the authors and since w= e are only one over, I=E2=80=99d like to leave it as is.=C2=A0



My review comments are below. =C2=A0 Thanks again for your hard work i= n getting this far!

Minor issues:

1) On p. 6, it says " AF Address family for the prefix.=C2=A0 Cur= rently, the
only supported value is 0 for IPv4 unicast." =C2=A0Please clarify= VERY
CLEARLY why this restriction exists.=C2=A0 Not everyone reading this w= ill
be familiar with support for IPv6 in various protocols and we are real= ly
finally heading towards lots more IPv6.

I will clarify. There are basically two reasons. The first is that we = really didn=E2=80=99t want to specify more than was necessary in this base = document. The second is that we have OSPFv3 for IPv6. So, you may ask why w= e have this at all. The reason is that we didn=E2=80=99t want to rule out extension of OSPFv2 completely.=C2=A0




2) On p. 6 and 8.:
"The Instance field is an arbitrary value used to maintain multip= le
Extended Prefix Opaque LSAs.=C2=A0 A maximum of 16777216 Extended Pref= ix
Opaque LSAs may be sourced by a single OSPF instance.": This does= n't
really give normative behavior.=C2=A0 I assume that what you mean is t= hat
the advertising router has a number space for the Instance which has
no significance outside of that advertising router and can have
arbitrary values allocated from it.=C2=A0 Each of these LSAs is identi= fied
uniquely by its Instance number.=C2=A0 Please provide good text for wh= at
MUST be done and indicate that the value may be used for tie-breaking<= /div>
("In this case, the Extended-Prefix-TLV in the Extended Prefix Op= aque
LSA with the smallest Instance is used by receiving OSPFv2 Routers. &q= uot;)
and there's an assumption that the values will be allocated from
smallest to largest.

I will clarify this. However, I don=E2=80=99t want to specify any assu= mption about allocation.=C2=A0



3) On p. 6 for the Route Type, it would be useful to have a reference = to
where these type values are pulled from.=C2=A0 I'd also like to se= e some
text about whether other values could be valid in the future and how
so.=C2=A0 For instance, I'm assuming that you are basically pullin= g the
values from the OSPFv2 Link State (LS) Type
- so perhaps you could simply say so or clarify for what are valid
values.

Is there an example of referencing an IANA directory? I could also ref= erence RFC 2823 and RFC 3101 directly.=C2=A0
=


Sure - I was suggesting the name of the registry also.

=
4) On p. 9: For Link-Type, could you also put a reference to the IANA<= /div>
registry?=C2=A0 I'd prefer it to be clear that if (unlikely as it = seems)
there were a new Link-Type added, it would apply here too.

Sure. We=E2=80=99ll do the same.=C2=A0



5) In Sec 5, pleaes add an RFC Editor note that Section 5 will be remo= ved
upon publication.=C2=A0 That's the intent wtih RFC 6982.=C2=A0 Tha= nks for
including this section in the draft.=C2=A0 If the information wants to= move
to the OSPF WG wiki, that would give it a place to survive after this<= /div>
draft is submitted to the RFC Editor.

Ok - I need to hunt down this OSPF Wiki we talked about in Prague as w= ell.=C2=A0



Nits:

6) In Sec 2, there's an "e.g., mapping server deployment"= ;.=C2=A0 Could you add
a reference?=C2=A0 This tells me nothing...

Sure - it is the segment routing architecture document.=C2=A0



7) In Sec 2, In the packet format, could you clarify Opaque type =3D 7= ? Same
for on p.8 for opaque type =3D 8 ?

Sure.=C2=A0

I= guess you want me to reference the Opaque draft. We have early IANA alloca= tion for both these values but that will be completely irrelevant once this= is published.=C2=A0

Sure - it'd be nice to have a reference - but all I was asking was fo= r the figure to be updated to show the value of the Opaque Type since it is= known.

Thanks,
Alia=C2=A0

=C2=A0

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AMXPR07MB056; 5:+6c8OcfR9iE7Aio3IB0tNPdUCbcEJLOjC+oNMa79lmeEMlwawFeDt30+4ELrpZLiXGYQ8dvkmGG6b5kpK0YEWhM/d80M1xpW61KdZCd93Z3I/vqNydn6FKItzjgDN4EFfb0njx+ppf1npsLnUIJ2pQ==; 24:gTDEPbNPZhiY4Cjsg7ezHo4utQGDncRH7kq3jmTCFvmJxg3vLajYwe+9RCfNg5Rm8KJ1ZqD3PEOQUWqmPz7Uy2ANjxLJd39+yLLTNEAq5Sw=; 20:pj/6e6H6K3JO97H7yS4n0aBaYNf8u3XWT3UAwrkNM2iKGlbnNG/RMvK/4UBzJ0BOZ+fgcm9zEqQEDbqXOqrgIQ== SpamDiagnosticOutput: 1:23 SpamDiagnosticMetadata: NSPM X-OriginatorOrg: btconnect.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Aug 2015 11:57:34.1330 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: AMXPR07MB056 Archived-At: Subject: Re: [OSPF] AD review of draft-ietf-ospf-prefix-link-attr-06 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Aug 2015 11:58:00 -0000 Acee On the IANA question, you might find 5226bis of value, particularly sections 7 and 8. That I-D also introduces a clarification to the terminology so that Open Shortest Path First v2 (OSPFv2) Parameters is a Group and OSPFv2 Link State (LS) Type is a registry, something which you might incorporate. 'existing OSPF IANA registry' I find ambiguous. Tom Petch ----- Original Message ----- From: "Acee Lindem (acee)" To: "Alia Atlas" ; ; "OSPF List" ; "shraddha" Sent: Saturday, August 01, 2015 10:54 PM Subject: Re: [OSPF] AD review of draft-ietf-ospf-prefix-link-attr-06 > Hi Alia, > Thanks for the review. > > From: Alia Atlas > > Date: Thursday, July 30, 2015 at 2:22 PM > To: "draft-ietf-ospf-prefix-link-attr@ietf.org" >, OSPF WG List >, shraddha > > Subject: AD review of draft-ietf-ospf-prefix-link-attr-06 > > As is customary, I have done my AD review of draft-ietf-ospf-prefix-link-attr-06 before asking for IETF Last Call. First, thank you very much for your hard work on this draft. It is lovely to see needed work move quickly and have numerous interoperable implementations. > > I do have a number of minor issues on the draft - but all on the level of clarifications. Therefore, I have requested that IETF Last Call be started. Assuming good responsiveness on the part of the authors, a revised version that addresses my concerns can be on the IESG telechat on August 20. > > I do note that there are 6 authors on this draft. Please provide input - since I know that you all well aware that the limit is normally at most 5. One can identify a primary editor or two. This isn't pure process; the more authors listed on a draft, the longer it takes to handle AUTH48 - particularly when some are not as involved and do not respond rapidly and with full context. I make no judgement about the authors of this draft - who have clearly moved from pulling out the idea into a stand-alone draft and had a number of different implementations. > > We’ve already made one pass on pruning the authors and since we are only one over, I’d like to leave it as is. > > > > My review comments are below. Thanks again for your hard work in getting this far! > > Minor issues: > > 1) On p. 6, it says " AF Address family for the prefix. Currently, the > only supported value is 0 for IPv4 unicast." Please clarify VERY > CLEARLY why this restriction exists. Not everyone reading this will > be familiar with support for IPv6 in various protocols and we are really > finally heading towards lots more IPv6. > > I will clarify. There are basically two reasons. The first is that we really didn’t want to specify more than was necessary in this base document. The second is that we have OSPFv3 for IPv6. So, you may ask why we have this at all. The reason is that we didn’t want to rule out extension of OSPFv2 completely. > > > > > 2) On p. 6 and 8.: > "The Instance field is an arbitrary value used to maintain multiple > Extended Prefix Opaque LSAs. A maximum of 16777216 Extended Prefix > Opaque LSAs may be sourced by a single OSPF instance.": This doesn't > really give normative behavior. I assume that what you mean is that > the advertising router has a number space for the Instance which has > no significance outside of that advertising router and can have > arbitrary values allocated from it. Each of these LSAs is identified > uniquely by its Instance number. Please provide good text for what > MUST be done and indicate that the value may be used for tie-breaking > ("In this case, the Extended-Prefix-TLV in the Extended Prefix Opaque > LSA with the smallest Instance is used by receiving OSPFv2 Routers. ") > and there's an assumption that the values will be allocated from > smallest to largest. > > I will clarify this. However, I don’t want to specify any assumption about allocation. > > > > 3) On p. 6 for the Route Type, it would be useful to have a reference to > where these type values are pulled from. I'd also like to see some > text about whether other values could be valid in the future and how > so. For instance, I'm assuming that you are basically pulling the > values from the OSPFv2 Link State (LS) Type > (http://www.iana.org/assignments/ospfv2-parameters/ospfv2-parameters.xht ml#ospfv2-parameters-5) > - so perhaps you could simply say so or clarify for what are valid > values. > > Is there an example of referencing an IANA directory? I could also reference RFC 2823 and RFC 3101 directly. > > > > 4) On p. 9: For Link-Type, could you also put a reference to the IANA > registry? I'd prefer it to be clear that if (unlikely as it seems) > there were a new Link-Type added, it would apply here too. > > Sure. We’ll do the same. > > > > 5) In Sec 5, pleaes add an RFC Editor note that Section 5 will be removed > upon publication. That's the intent wtih RFC 6982. Thanks for > including this section in the draft. If the information wants to move > to the OSPF WG wiki, that would give it a place to survive after this > draft is submitted to the RFC Editor. > > Ok - I need to hunt down this OSPF Wiki we talked about in Prague as well. > > > > Nits: > > 6) In Sec 2, there's an "e.g., mapping server deployment". Could you add > a reference? This tells me nothing... > > Sure - it is the segment routing architecture document. > > > > 7) In Sec 2, In the packet format, could you clarify Opaque type = 7? Same > for on p.8 for opaque type = 8 ? > > Sure. > > > 8) Since you are creating the registry for the TLVs, please clearly state > that value 1 is being used earlier - instead of "suggested value" as > on p.9 > > Sure. > > Thanks, > Acee > > > > Regards, > Alia > ------------------------------------------------------------------------ -------- > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www.ietf.org/mailman/listinfo/ospf > From nobody Tue Aug 4 06:12:43 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8DB8A1A903E; Tue, 4 Aug 2015 06:12:42 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.511 X-Spam-Level: X-Spam-Status: No, score=-14.511 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_HI=-5, 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[OSPF] AD review of draft-ietf-ospf-prefix-link-attr-06 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Aug 2015 13:12:42 -0000 SGkgVG9tLCANCg0KT24gOC80LzE1LCA3OjU3IEFNLCAidC5wZXRjaCIgPGlldGZjQGJ0Y29ubmVj dC5jb20+IHdyb3RlOg0KDQo+QWNlZQ0KPg0KPk9uIHRoZSBJQU5BIHF1ZXN0aW9uLCB5b3UgbWln aHQgZmluZCA1MjI2YmlzIG9mIHZhbHVlLCBwYXJ0aWN1bGFybHkNCj5zZWN0aW9ucyA3IGFuZCA4 Lg0KPg0KPlRoYXQgSS1EIGFsc28gaW50cm9kdWNlcyBhIGNsYXJpZmljYXRpb24gdG8gdGhlIHRl cm1pbm9sb2d5IHNvIHRoYXQNCj5PcGVuIFNob3J0ZXN0IFBhdGggRmlyc3QgdjIgKE9TUEZ2Mikg UGFyYW1ldGVycw0KPmlzIGEgR3JvdXAgYW5kDQo+T1NQRnYyIExpbmsgU3RhdGUgKExTKSBUeXBl DQo+aXMgYSByZWdpc3RyeSwgc29tZXRoaW5nIHdoaWNoIHlvdSBtaWdodCBpbmNvcnBvcmF0ZS4N Cj4NCj4nZXhpc3RpbmcgT1NQRiBJQU5BIHJlZ2lzdHJ5JyBJIGZpbmQgYW1iaWd1b3VzLg0KDQpJ IGFncmVlIC0gdGhpcyB3aWxsIGJlIGNsYXJpZmllZCBmb3IgYWxsIDQgb2YgdGhlIG5ldyByZWdp 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xch-rcd-016.cisco.com (173.37.102.26) with Microsoft SMTP Server (TLS) id 15.0.1076.9 via Frontend Transport; Tue, 4 Aug 2015 10:07:13 -0500 Received: from xmb-aln-x06.cisco.com ([169.254.1.223]) by xhc-rcd-x05.cisco.com ([173.37.183.79]) with mapi id 14.03.0248.002; Tue, 4 Aug 2015 10:07:13 -0500 From: "Acee Lindem (acee)" To: "Acee Lindem (acee)" , OSPF WG List Thread-Topic: [OSPF] Working Group Last Call for "OSPF extensions to advertise S-BFD Target Discriminator" Thread-Index: AQHQzsc9WdvvjFn8qkuCSbpvPIOVfg== Date: Tue, 4 Aug 2015 15:07:12 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.36.7.26] Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "draft-ietf-ospf-sbfd-discriminator@tools.ietf.org" Subject: Re: [OSPF] Working Group Last Call for "OSPF extensions to advertise S-BFD Target Discriminator" X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Aug 2015 15:07:51 -0000 QXV0aG9ycywgDQpJIGhhdmUgcmV2aWV3ZWQgdGhlIGRvY3VtZW50IGFuZCBzZWN0aW9uIDIgbmVl ZHMgdG8gYmV0dGVyIGRlc2NyaWJlIHRoZQ0KcHJvY2Vzc2luZyBvZiBUTFYuIEVzcGVjaWFsbHkg Y29uc2lkZXJpbmcgdGhhdCB3ZSBub3cgc3VwcG9ydCBtdWx0aXBsZQ0KaW5zdGFuY2VzIG9mIHRo ZSBPU1BGKHYzKSBSSSBMU0ENCihodHRwczovL3d3dy5pZXRmLm9yZy9pbnRlcm5ldC1kcmFmdHMv ZHJhZnQtaWV0Zi1vc3BmLXJmYzQ5NzBiaXMtMDEudHh0KS4NClNwZWNpYWxseSwgeW91IG5lZWQg dG8gYWRkcmVzcyBtdWx0aXBsZSBpbnN0YW5jZXMgb2YgdGhlIFRMViBpbiB0aGUgc2FtZQ0KUkkg TFNBIG9yIGFub3RoZXIgTFNBIChlLmcuLCB5b3UgY291bGQgaWdub3JlIGFsbCBpbnN0YW5jZXMg c3Vic2VxdWVudCB0bw0KdGhlIGZpcnN0IGluIHRoZSBSSSBpbnN0YW5jZSB3aXRoIHRoZSBsb3dl c3Qgc2VxdWVuY2UgbnVtYmVyKS4gV2hlbiB5b3UNCmhhdmUgc2VsZWN0ZWQgYW4gaW5zdGFuY2Ug 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Zi1zYmZkLWRpc2NyaW1pbmF0b3IvDQo+DQo+VGhhbmtzLA0KPkFjZWUNCj4NCj5fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXw0KPk9TUEYgbWFpbGluZyBsaXN0 DQo+T1NQRkBpZXRmLm9yZw0KPmh0dHBzOi8vd3d3LmlldGYub3JnL21haWxtYW4vbGlzdGluZm8v b3NwZg0KDQo= From nobody Thu Aug 13 11:55:15 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E22961B2E35; Thu, 13 Aug 2015 11:55:11 -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] autolearn=ham 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 Vg-DID-iiCsT; Thu, 13 Aug 2015 11:55:10 -0700 (PDT) Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 1FC891B2E21; Thu, 13 Aug 2015 11:55:10 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "Alvaro Retana" To: "The IESG" X-Test-IDTracker: no X-IETF-IDTracker: 6.4.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20150813185510.2178.47613.idtracker@ietfa.amsl.com> Date: Thu, 13 Aug 2015 11:55:10 -0700 Archived-At: Cc: ospf@ietf.org, draft-ietf-ospf-prefix-link-attr@ietf.org, draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org, draft-ietf-ospf-prefix-link-attr.ad@ietf.org, ospf-chairs@ietf.org Subject: [OSPF] Alvaro Retana's Yes on draft-ietf-ospf-prefix-link-attr-10: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 13 Aug 2015 18:55:12 -0000 Alvaro Retana has entered the following ballot position for draft-ietf-ospf-prefix-link-attr-10: Yes When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-ospf-prefix-link-attr/ ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- This is a good document, but I have some comments (and nits) that I would really like to see addressed before publication. I don't think my comments raise to the level of a DISCUSS, but I am specially interested in the actions when errors are detected. 1. Sections 2 and 3. a. RFC5250 used the name Opaque ID instead of Instance. Please be consistent. If there’s a really good reason to not use the “official” name, please at least write in the description of Instance that rfc5250 calls it Opaque ID. b. “…the attributes from the Opaque LSA with the lowest Instance will be used.” This sounds to me like a good place to be a little bit more prescriptive and s/will/MUST 2. Section 2.1. (OSPFv2 Extended Prefix TLV) a. For the Route Type, are those the only allowed values? What happens if something else is used? b. Flags - What are the defined flags used for? Since (according to Section 5) they are not supported in all implementations then I’m assuming there’s a specific application in mind. [I know there are other ID’s in progress that use the TLVs defined here. Is the use of these bits general to those applications?] - How should the rest of the flags be assigned? The IANA section says nothing about that. c. "Address Prefix The prefix itself encoded as a 32-bit value.” It is variable, not fixed. I know that only IPv4 is currently supported, but as explained in the AF section, there may be future extensions. 3. Section 3.1. (OSPFv2 Extended Link TLV) What should happen if an unknown/incorrect Link-Type/Link-ID/Link Data value is received? 4. Section 6. (Security Considerations) a. I think you should also point the readers at the considerations in rfc5250. b. “…implementations must assure that malformed TLV and Sub-TLV permutations do not result in errors that cause hard OSPF failures.” What does that mean? That the software should be resilient? Or are you pointing at just ignoring the information if there is a malformed TLV/sub-TLV (that is somehow salvageable)? It would be vey nice is this draft set the example by specifying what to do in some cases (maybe not malformed, but incorrect/unknown as mentioned above). 5. Section 7. (IANA Considerations) Is there a significant reason why in all cases the assignment policy for the 33024-65535 range is not being defined upfront? Nits: 1. In Sections 2 and 3 s/differential/differentiate 2. In Section 2. (OSPFv2 Extended Prefix Opaque LSA), the figure that shows the TLV format seems to show a Value field of only 32 bits. The description (below the figure), which looks like an exact copy from rfc3630, describes the field correctly. It would be nice to either copy over the whole text from rfc3630 (including the figure that shows that the Value may be longer) or just leave out that text completely (which is my preference). The text saying that the TLV format is the same as in rfc3630 is enough. - In Section 3 you write: "The format of the TLVs within the body of the OSPFv2 Extended Link Opaque LSA is the same as described in Section 2.” One more level of indirection.. 3. 2.1. (OSPFv2 Extended Prefix TLV) a. The description of “Flags” is misaligned (it looks like a sub-paragraph of AF). b. s/originated by the different/originated by different From nobody Fri Aug 14 01:46:01 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 023B61A6EFE for ; Fri, 14 Aug 2015 01:46:00 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.511 X-Spam-Level: X-Spam-Status: No, score=-14.511 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_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham 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 fRlRODyLGGvP for ; Fri, 14 Aug 2015 01:45:58 -0700 (PDT) Received: from aer-iport-4.cisco.com (aer-iport-4.cisco.com [173.38.203.54]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 631E51A6EE2 for ; Fri, 14 Aug 2015 01:45:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=436; q=dns/txt; s=iport; t=1439541958; x=1440751558; h=message-id:date:from:mime-version:to:cc:subject: references:in-reply-to:content-transfer-encoding; bh=IoF4ZTxQJb/rSC9cTU3pJYBo7vj1l61tyGdo/WokTok=; b=ibb4iYxq1uYhSQ7tgYAXYo6fzChMZU/LekYEZyQulBe+Kf+cpygy7VnJ Myja/8hVe7nJMVXcMxA8QA4Mw1Cf6S9H5Qor5pnYdXhkfVb/rTfgfk1R8 uT76p6Iwo2ZX1a8dsqq8RwBq+lfqtTsvGVl1SCgNOeXDSpONbXaG9OeTZ I=; X-IronPort-AV: E=Sophos;i="5.15,676,1432598400"; d="scan'208";a="605901705" Received: from aer-iport-nat.cisco.com (HELO aer-core-2.cisco.com) ([173.38.203.22]) by aer-iport-4.cisco.com with ESMTP; 14 Aug 2015 08:45:56 +0000 Received: from as-lnx.cisco.com (ams-asmirnov-nitro5.cisco.com [10.55.206.134]) (authenticated bits=0) by aer-core-2.cisco.com (8.14.5/8.14.5) with ESMTP id t7E8jug8002696 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Fri, 14 Aug 2015 08:45:56 GMT Message-ID: <55CDAABF.8030806@cisco.com> Date: Fri, 14 Aug 2015 10:45:51 +0200 From: Anton Smirnov Organization: Cisco Systems User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 MIME-Version: 1.0 To: "Acee Lindem (acee)" , "draft-ietf-ospf-node-admin-tag@tools.ietf.org" References: In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Authenticated-User: asmirnov Archived-At: Cc: OSPF WG List Subject: Re: [OSPF] "Advertising per-node administrative tags in OSPF" - draft-ietf-ospf-node-admin-tag-02 - IPR Poll X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Aug 2015 08:46:00 -0000 I am not aware of any IPR relevant to this draft. Anton On 07/23/2015 02:17 PM, Acee Lindem (acee) wrote: > Draft Authors, > In preparation for WG last call, please indicate whether you are aware of > any relevant IPR and if so, whether it has been disclosed. > Thanks, > Acee > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www.ietf.org/mailman/listinfo/ospf > From nobody Fri Aug 14 10:13:29 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6D94C1B2A85; Fri, 14 Aug 2015 10:13:27 -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] autolearn=ham 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 wR7XDnmEmYcC; Fri, 14 Aug 2015 10:13:26 -0700 (PDT) Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id EE7001B2A82; Fri, 14 Aug 2015 10:13:25 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: "Barry Leiba" To: "The IESG" X-Test-IDTracker: no X-IETF-IDTracker: 6.4.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20150814171325.18741.78128.idtracker@ietfa.amsl.com> Date: Fri, 14 Aug 2015 10:13:25 -0700 Archived-At: Cc: ospf@ietf.org, draft-ietf-ospf-prefix-link-attr@ietf.org, draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org, draft-ietf-ospf-prefix-link-attr.ad@ietf.org, ospf-chairs@ietf.org Subject: [OSPF] Barry Leiba's No Objection on draft-ietf-ospf-prefix-link-attr-10: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Aug 2015 17:13:27 -0000 Barry Leiba has entered the following ballot position for draft-ietf-ospf-prefix-link-attr-10: No Objection When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-ospf-prefix-link-attr/ ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- Some minor comments, just some clarifications... and a question about the registries. -- Section 2 -- There is no explanation of the "length" field in the OSPFv2 Extended Prefix Opaque LSA. I guess it's the total size, in bytes, of all the TLV data that follows, including any alignment bytes. But you should make that clear. -- Section 3 -- The same comment as for Section 2 applies here for the OSPFv2 Extended Link Opaque LSA. -- Section 7.1 -- Types in the range 33024-65535 are not to be assigned at this time. Before any assignments can be made in the 33024-65535 range, there MUST be an IETF specification that specifies IANA Considerations that covers the range being assigned. A question here (I'm not hoping for any particular answer, just asking the question): When you say "an IETF specification", I take that to mean an RFC in the IETF stream, which can be Standards Track *or* Informational *or* Experimental. Is that what you want? The same question applies to the registries in the subsequent sections (7.2, 7.3, 7.4). From nobody Mon Aug 17 06:41:55 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E1E7D1B2E53; Mon, 17 Aug 2015 06:41:53 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.511 X-Spam-Level: X-Spam-Status: No, score=-14.511 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_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham 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 0ji7ErLVuNDE; Mon, 17 Aug 2015 06:41:52 -0700 (PDT) Received: from alln-iport-8.cisco.com (alln-iport-8.cisco.com [173.37.142.95]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 8F78F1B2E4F; 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XCH-RCD-003.cisco.com (xch-rcd-003.cisco.com [173.37.102.13]) by rcdn-core-1.cisco.com (8.14.5/8.14.5) with ESMTP id t7HDfo8B019637 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Mon, 17 Aug 2015 13:41:50 GMT Received: from xch-rcd-003.cisco.com (173.37.102.13) by XCH-RCD-003.cisco.com (173.37.102.13) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Mon, 17 Aug 2015 08:41:49 -0500 Received: from xhc-aln-x04.cisco.com (173.36.12.78) by xch-rcd-003.cisco.com (173.37.102.13) with Microsoft SMTP Server (TLS) id 15.0.1104.5 via Frontend Transport; Mon, 17 Aug 2015 08:41:49 -0500 Received: from xmb-aln-x06.cisco.com ([169.254.1.223]) by xhc-aln-x04.cisco.com ([173.36.12.78]) with mapi id 14.03.0248.002; Mon, 17 Aug 2015 08:41:49 -0500 From: "Acee Lindem (acee)" To: "Alvaro Retana (aretana)" , The IESG Thread-Topic: Alvaro Retana's Yes on draft-ietf-ospf-prefix-link-attr-10: (with COMMENT) Thread-Index: AQHQ1fmX9qzLUvViaUO6WvDXjCJuIZ4QSbsA Date: Mon, 17 Aug 2015 13:41:48 +0000 Message-ID: References: <20150813185510.2178.47613.idtracker@ietfa.amsl.com> In-Reply-To: <20150813185510.2178.47613.idtracker@ietfa.amsl.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.36.7.28] Content-Type: text/plain; charset="utf-8" Content-ID: <3E7C373824471C4BAC6EB1333BDAE458@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Alvaro Retana's Yes on draft-ietf-ospf-prefix-link-attr-10: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Aug 2015 13:41:54 -0000 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Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7BD121A1B0D; Mon, 17 Aug 2015 07:31:01 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.511 X-Spam-Level: X-Spam-Status: No, score=-14.511 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_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham 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 bAg_AeMelidh; Mon, 17 Aug 2015 07:31:00 -0700 (PDT) Received: from rcdn-iport-7.cisco.com (rcdn-iport-7.cisco.com [173.37.86.78]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 126F11A1B07; Mon, 17 Aug 2015 07:31:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=2052; q=dns/txt; s=iport; t=1439821860; x=1441031460; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=YTyg7tcZgBTG77zfiYBs4a/4P89hP8R2vfPX59bMAVM=; b=JJndn9LCceQJfUrJNDbQ0d1hissy6fCo/mRkVB/D7se3ngLMK6bnFU3w GiIH4DOuUp0woi7GZhrzMXaes7xGSRs1QYDKCy6K/NbhkBsIQ0bSGjEaO IffSEYzO3mefyh2/mewLRe3SYtRABpuzUkklSXZJHSJ9a+counUCyJUTj s=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A0C2AgC679FV/40NJK1dgxuBPQa9ZgEJhDiDNgKBLjgUAQEBAQEBAYEKhCQBAQR5EAIBCEYyJQIEAQ0FiC7RFgEBAQEBAQEBAQEBAQEBAQEBAQEZi1KEVjMHhCwBBJIRgwwBhyuFQJonJoN9cYFIgQQBAQE X-IronPort-AV: E=Sophos;i="5.15,695,1432598400"; d="scan'208";a="19267105" Received: from alln-core-8.cisco.com ([173.36.13.141]) by rcdn-iport-7.cisco.com with ESMTP; 17 Aug 2015 14:30:45 +0000 Received: from XCH-ALN-007.cisco.com (xch-aln-007.cisco.com [173.36.7.17]) by alln-core-8.cisco.com (8.14.5/8.14.5) with ESMTP id t7HEUj00012981 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Mon, 17 Aug 2015 14:30:45 GMT Received: from xch-aln-007.cisco.com (173.36.7.17) by XCH-ALN-007.cisco.com (173.36.7.17) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Mon, 17 Aug 2015 09:30:44 -0500 Received: from xhc-rcd-x06.cisco.com (173.37.183.80) by xch-aln-007.cisco.com (173.36.7.17) with Microsoft SMTP Server (TLS) id 15.0.1104.5 via Frontend Transport; Mon, 17 Aug 2015 09:30:44 -0500 Received: from xmb-aln-x15.cisco.com ([169.254.9.148]) by xhc-rcd-x06.cisco.com ([173.37.183.80]) with mapi id 14.03.0248.002; Mon, 17 Aug 2015 09:30:44 -0500 From: "Alvaro Retana (aretana)" To: "Acee Lindem (acee)" , The IESG Thread-Topic: Alvaro Retana's Yes on draft-ietf-ospf-prefix-link-attr-10: (with COMMENT) Thread-Index: AQHQ1fmXYwG8fMqjhEys4ddRMwDFRZ4QjMwA///KmQA= Date: Mon, 17 Aug 2015 14:30:43 +0000 Message-ID: References: <20150813185510.2178.47613.idtracker@ietfa.amsl.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.36.7.17] Content-Type: text/plain; charset="Windows-1252" Content-ID: <565662CB00412C43AECED21BF380448E@emea.cisco.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Alvaro Retana's Yes on draft-ietf-ospf-prefix-link-attr-10: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Aug 2015 14:31:01 -0000 On 8/17/15, 9:41 AM, "Acee Lindem (acee)" wrote: Acee: Hi! Thanks for looking into my comments! Just one more thing below. Alvaro. . . . >>2. Section 2.1. (OSPFv2 Extended Prefix TLV) >> >>a. For the Route Type, are those the only allowed values? What happens >>if something else is used? > >Yes - these are the only route types allowed. If an invalid type is >specified, the attributes will not be correlated with a route. I=B9m glad you brought this up =8B the correlation. I should=B9ve commente= d on this before.. I don=B9t think the draft talks about how to correlate the additional information back to the =B3normal=B2 LSAs. Given that it is important for = the route type and the prefix to match (anything else?), it would be good if it was called out somewhere. I=B9m assuming that the fact that the correlation is not made will just result in lost information =8B but some application may really want this information, so loosing it could be importante for them. Explaining the potential impact would be very good. Same comment for the other TLV.. . . . >>4. Section 6. (Security Considerations) >> >>a. I think you should also point the readers at the considerations in >>rfc5250. >> >>b. =B3=8Aimplementations must assure that malformed TLV and Sub-TLV >>permutations do not result in errors that cause hard OSPF failures.=B2 >>What does that mean? That the software should be resilient? Or are you >>pointing at just ignoring the information if there is a malformed >>TLV/sub-TLV (that is somehow salvageable)? It would be vey nice is this >>draft set the example by specifying what to do in some cases (maybe not >>malformed, but incorrect/unknown as mentioned above). > > >This stems from prior attacks on routing protocols involved carefully >crafted malformed TLVs which could result in software crashes. Ahh..ok. Still, explaining what to do with malformed information would be good. This obviously goes back to the loss of information. From nobody Mon Aug 17 10:22:59 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A98C41ACD42 for ; Mon, 17 Aug 2015 10:22:57 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 2.078 X-Spam-Level: ** X-Spam-Status: No, score=2.078 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, CHARSET_FARAWAY_HEADER=3.2, CN_BODY_35=0.339, MIME_8BIT_HEADER=0.3, MIME_CHARSET_FARAWAY=2.45, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham 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 BzBAKZD-o_nM for ; Mon, 17 Aug 2015 10:22:55 -0700 (PDT) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E38CC1ACD3E for ; Mon, 17 Aug 2015 10:22:54 -0700 (PDT) Received: from 172.18.7.190 (EHLO lhreml402-hub.china.huawei.com) ([172.18.7.190]) by lhrrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id BZZ38295; Mon, 17 Aug 2015 17:22:53 +0000 (GMT) Received: from NKGEML404-HUB.china.huawei.com (10.98.56.35) by lhreml402-hub.china.huawei.com (10.201.5.241) with Microsoft SMTP Server (TLS) id 14.3.235.1; Mon, 17 Aug 2015 18:22:52 +0100 Received: from NKGEML506-MBX.china.huawei.com ([169.254.3.214]) by nkgeml404-hub.china.huawei.com ([10.98.56.35]) with mapi id 14.03.0235.001; Tue, 18 Aug 2015 01:22:45 +0800 From: Lizhenbin To: "Acee Lindem (acee)" , "draft-ietf-ospf-node-admin-tag@tools.ietf.org" Thread-Topic: "Advertising per-node administrative tags in OSPF" - draft-ietf-ospf-node-admin-tag-02 - IPR Poll Thread-Index: AQHQxUGTCb3Tf5LsF0eDXaDf5IwE5p4QmACg Date: Mon, 17 Aug 2015 17:22:44 +0000 Message-ID: <5A5B4DE12C0DAC44AF501CD9A2B01A8D8CA2CEA7@nkgeml506-mbx.china.huawei.com> References: In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.76.77] Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Cc: OSPF WG List Subject: [OSPF] =?gb2312?b?tPC4tDogIkFkdmVydGlzaW5nIHBlci1ub2RlIGFkbWlu?= =?gb2312?b?aXN0cmF0aXZlIHRhZ3MgaW4gT1NQRiIgLSBkcmFmdC1pZXRmLW9zcGYtbm9k?= =?gb2312?b?ZS1hZG1pbi10YWctMDIgLSBJUFIgUG9sbA==?= X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Aug 2015 17:22:57 -0000 SSBhbSBub3QgYXdhcmUgb2YgYW55IElQUiByZWxldmFudCB0byB0aGlzIGRyYWZ0Lg0KDQpCZXN0 IFJlZ2FyZHMsDQpSb2Jpbg0KDQoNCg0KDQotLS0tLdPKvP7Urbz+LS0tLS0NCreivP7IyzogT1NQ 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MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: [OSPF] =?gb2312?b?tPC4tDogV29ya2luZyBHcm91cCBMYXN0IENhbGwgZm9y?= =?gb2312?b?ICJBZHZlcnRpc2luZyBwZXItbm9kZSBhZG1pbmlzdHJhdGl2ZSB0YWdzIGlu?= =?gb2312?b?IE9TUEYiIC0gZHJhZnQtaWV0Zi1vc3BmLW5vZGUtYWRtaW4tdGFnLTAy?= X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Aug 2015 17:24:16 -0000 U3VwcG9ydCBhcyB0aGUgY28tYXV0aG9yLg0KDQpCZXN0IFJlZ2FyZHMsDQpSb2Jpbg0KDQoNCg0K DQotLS0tLdPKvP7Urbz+LS0tLS0NCreivP7IyzogT1NQRiBbbWFpbHRvOm9zcGYtYm91bmNlc0Bp ZXRmLm9yZ10gtPqx7SBBY2VlIExpbmRlbSAoYWNlZSkNCreiy83KsbzkOiAyMDE1xOo31MIyM8jV IDIwOjI1DQrK1bz+yMs6IE9TUEYgV0cgTGlzdA0K1vfM4jogW09TUEZdIFdvcmtpbmcgR3JvdXAg TGFzdCBDYWxsIGZvciAiQWR2ZXJ0aXNpbmcgcGVyLW5vZGUgYWRtaW5pc3RyYXRpdmUgdGFncyBp biBPU1BGIiAtIGRyYWZ0LWlldGYtb3NwZi1ub2RlLWFkbWluLXRhZy0wMg0KDQpUaGlzIGJlZ2lu 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xhc-aln-x04.cisco.com (173.36.12.78) by xch-aln-004.cisco.com (173.36.7.14) with Microsoft SMTP Server (TLS) id 15.0.1104.5 via Frontend Transport; Mon, 17 Aug 2015 15:16:59 -0500 Received: from xmb-aln-x06.cisco.com ([169.254.1.223]) by xhc-aln-x04.cisco.com ([173.36.12.78]) with mapi id 14.03.0248.002; Mon, 17 Aug 2015 15:16:59 -0500 From: "Acee Lindem (acee)" To: "Alvaro Retana (aretana)" , The IESG Thread-Topic: Alvaro Retana's Yes on draft-ietf-ospf-prefix-link-attr-10: (with COMMENT) Thread-Index: AQHQ1fmX9qzLUvViaUO6WvDXjCJuIZ4QSbsAgABQu4CAAB2uAA== Date: Mon, 17 Aug 2015 20:16:59 +0000 Message-ID: References: <20150813185510.2178.47613.idtracker@ietfa.amsl.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.37.102.24] Content-Type: text/plain; charset="utf-8" Content-ID: <3A0E0EBB6C33984BB971744EDBEAACE9@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Alvaro Retana's Yes on draft-ietf-ospf-prefix-link-attr-10: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Aug 2015 20:17:03 -0000 SGV5IEFsdmFybywgDQoNCk9uIDgvMTcvMTUsIDEwOjMwIEFNLCAiQWx2YXJvIFJldGFuYSAoYXJl dGFuYSkiIDxhcmV0YW5hQGNpc2NvLmNvbT4gd3JvdGU6DQoNCj5PbiA4LzE3LzE1LCA5OjQxIEFN LCAiQWNlZSBMaW5kZW0gKGFjZWUpIiA8YWNlZUBjaXNjby5jb20+IHdyb3RlOg0KPg0KPkFjZWU6 DQo+DQo+SGkhDQo+DQo+VGhhbmtzIGZvciBsb29raW5nIGludG8gbXkgY29tbWVudHMhICBKdXN0 IG9uZSBtb3JlIHRoaW5nIGJlbG93Lg0KPg0KPkFsdmFyby4NCj4NCj4NCj4uIC4gLg0KPj4+Mi4g U2VjdGlvbiAyLjEuIChPU1BGdjIgRXh0ZW5kZWQgUHJlZml4IFRMVikNCj4+Pg0KPj4+YS4gRm9y 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Server (TLS) id 15.0.1104.5 via Frontend Transport; Mon, 17 Aug 2015 17:46:41 -0500 Received: from xmb-aln-x06.cisco.com ([169.254.1.223]) by xhc-rcd-x15.cisco.com ([173.37.183.89]) with mapi id 14.03.0248.002; Mon, 17 Aug 2015 17:46:41 -0500 From: "Acee Lindem (acee)" To: Kathleen Moriarty , The IESG Thread-Topic: Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) Thread-Index: AQHQ2T6VD1u2/uPu+k2Rr3P197oiCg== Date: Mon, 17 Aug 2015 22:46:40 +0000 Message-ID: References: <20150817200640.5272.4712.idtracker@ietfa.amsl.com> In-Reply-To: <20150817200640.5272.4712.idtracker@ietfa.amsl.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.36.7.28] Content-Type: text/plain; charset="utf-8" Content-ID: <7E74A15575A0A8459B7CC698AD3B0B1A@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Aug 2015 22:46:45 -0000 SGkgS2F0aGxlZW4sIA0KSGVyZSBhcmUgdGhlIHVwZGF0ZWQgIlNlY3VyaXR5IENvbnNpZGVyYXRp b25z4oCdIGFmdGVyIGFkZHJlc3NpbmcgQWx2YXJv4oCZcw0KY29tbWVudHMuDQoNCjYuICBTZWN1 cml0eSBDb25zaWRlcmF0aW9ucw0KDQogICBJbiBnZW5lcmFsLCBuZXcgTFNBcyBkZWZpbmVkIGlu IHRoaXMgZG9jdW1lbnQgYXJlIHN1YmplY3QgdG8gdGhlIHNhbWUNCiAgIHNlY3VyaXR5IGNvbmNl cm5zIGFzIHRob3NlIGRlc2NyaWJlZCBpbiBbT1NQRlYyXSBhbmQgW09QQVFVRV0uDQoNCiAgIE9T UEZ2MiBhcHBsaWNhdGlvbnMgdXRpbGl6aW5nIHRoZXNlIE9TUEZ2MiBleHRlbnNpb25zIG11c3Qg 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bGFpbiB3aGF0DQo+SSdtIG1pc3Npbmc/DQo+DQo+VGhhbmsgeW91Lg0KPg0KPg0KPg0KDQo= From nobody Mon Aug 17 18:57:29 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 66FA51B30AB; Mon, 17 Aug 2015 18:57:28 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.511 X-Spam-Level: X-Spam-Status: No, score=-14.511 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_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham 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 C0TKS9oCWVXH; Mon, 17 Aug 2015 18:57:27 -0700 (PDT) Received: from alln-iport-8.cisco.com (alln-iport-8.cisco.com [173.37.142.95]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client 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alln-iport-8.cisco.com with ESMTP; 18 Aug 2015 01:57:25 +0000 Received: from XCH-RCD-019.cisco.com (xch-rcd-019.cisco.com [173.37.102.29]) by rcdn-core-10.cisco.com (8.14.5/8.14.5) with ESMTP id t7I1vPvC016059 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Tue, 18 Aug 2015 01:57:25 GMT Received: from xch-rcd-019.cisco.com (173.37.102.29) by XCH-RCD-019.cisco.com (173.37.102.29) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Mon, 17 Aug 2015 20:57:24 -0500 Received: from xhc-aln-x06.cisco.com (173.36.12.80) by xch-rcd-019.cisco.com (173.37.102.29) with Microsoft SMTP Server (TLS) id 15.0.1104.5 via Frontend Transport; Mon, 17 Aug 2015 20:57:24 -0500 Received: from xmb-aln-x06.cisco.com ([169.254.1.223]) by xhc-aln-x06.cisco.com ([173.36.12.80]) with mapi id 14.03.0248.002; Mon, 17 Aug 2015 20:57:24 -0500 From: "Acee Lindem (acee)" To: Barry Leiba , The IESG Thread-Topic: Barry Leiba's No Objection on draft-ietf-ospf-prefix-link-attr-10: (with COMMENT) Thread-Index: AQHQ1rSKQAF1p2/1n0u13IBDP5MZep4RFckA Date: Tue, 18 Aug 2015 01:57:23 +0000 Message-ID: References: <20150814171325.18741.78128.idtracker@ietfa.amsl.com> In-Reply-To: <20150814171325.18741.78128.idtracker@ietfa.amsl.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.37.102.24] Content-Type: text/plain; charset="utf-8" Content-ID: <2C68B05E10D14E44BB23508F185D0581@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Barry Leiba's No Objection on draft-ietf-ospf-prefix-link-attr-10: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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bnRhbC4gIElzIHRoYXQgd2hhdCB5b3Ugd2FudD8NCg0KWWVzLiBJ4oCZZCBsaWtlIHRvIGxlYXZl IHRoaXMgb3Blbi4gSeKAmWQgaG9wZSB3ZeKAmWQgZG8gdGhlIHJpZ2h0IHRoaW5nIHdoZW4NCnRo ZSB0aW1lIGNvbWVzIHRvIGFzc2lnbiB0aGlzIHNwYWNlLg0KDQpUaGFua3MsDQpBY2VlDQoNCj4N Cj5UaGUgc2FtZSBxdWVzdGlvbiBhcHBsaWVzIHRvIHRoZSByZWdpc3RyaWVzIGluIHRoZSBzdWJz ZXF1ZW50IHNlY3Rpb25zDQo+KDcuMiwgNy4zLCA3LjQpLg0KPg0KPg0KDQo= From nobody Mon Aug 17 19:33:52 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C36B01B30EE; Mon, 17 Aug 2015 19:33:51 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.278 X-Spam-Level: X-Spam-Status: No, score=-1.278 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FM_FORGED_GMAIL=0.622, FREEMAIL_FROM=0.001, SPF_PASS=-0.001] autolearn=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 7Gmd7LiEVF7h; Mon, 17 Aug 2015 19:33:49 -0700 (PDT) Received: from mail-vk0-x231.google.com (mail-vk0-x231.google.com [IPv6:2607:f8b0:400c:c05::231]) (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 8953B1AC414; Mon, 17 Aug 2015 19:33:43 -0700 (PDT) Received: by vkfi73 with SMTP id i73so63703992vkf.2; Mon, 17 Aug 2015 19:33:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type:content-transfer-encoding; bh=ca9aDfta/T8o4gH3i1YIHJpv63HeXe+MvDvmsCnuFZ8=; b=q9SsxO42gsluS2Z7jWEuqkSybHzeAkVRuGNWNxJ4liWRCGGEqXaeNWtSOogNo/IX6I tLjOmSLF3/hRDe4dfDRwHGpqYfnfSIdbkcOxhwBvfj7AEUsO/pQFWnN6voJqbW7p+Nzp /NeiNXUgNc/G23CqKSb1F97qeiCb7/MiASQ/6Z3vJPHGBTLOSnaimMiU4ZgwHW+aKf3t PMlydQr6YhcOdlMHRsjNQPADj/i0XMxAdN5mstAaPfYTg+AIaMaNFcyxH7nKAEBxmn0j Qpq6fO35c0hY1MstlsNX4PAtPWBjtnDi2R5A+z3oTcRqER2mngBoDk7naiLx8T6H0BrH jvAw== MIME-Version: 1.0 X-Received: by 10.52.38.197 with SMTP id i5mr5293205vdk.52.1439865222803; Mon, 17 Aug 2015 19:33:42 -0700 (PDT) Sender: barryleiba@gmail.com Received: by 10.31.88.196 with HTTP; Mon, 17 Aug 2015 19:33:42 -0700 (PDT) In-Reply-To: References: <20150814171325.18741.78128.idtracker@ietfa.amsl.com> Date: Mon, 17 Aug 2015 22:33:42 -0400 X-Google-Sender-Auth: PWCZsZjhI5pZYzRbu8-vJyF5EWs Message-ID: From: Barry Leiba To: "Acee Lindem (acee)" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Archived-At: Cc: "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "ospf@ietf.org" , The IESG , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Barry Leiba's No Objection on draft-ietf-ospf-prefix-link-attr-10: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Aug 2015 02:33:52 -0000 Hi, Acee, and thanks for the response. >>-- Section 2 -- >>There is no explanation of the "length" field in the OSPFv2 Extended >>Prefix Opaque LSA. I guess it's the total size, in bytes, of all the TLV >>data that follows, including any alignment bytes. But you should make >>that clear. > > The LSA header length, as defined in RFC 2328, is pretty standard. > However, this can be succinctly clarified. How about? > > The LSA =E2=80=9CLength=E2=80=9D field [RFC2328] represents the total l= ength (in octets) > of the Opaque LSA including the LSA header and all TLVs (including > padding). That sounds good to me. And if you really think it's sufficiently well known already as not to need that, I'm OK with it as it is. Thanks for considering the comment. >>A question here (I'm not hoping for any particular answer, just asking >>the question): When you say "an IETF specification", I take that to mean >>an RFC in the IETF stream, which can be Standards Track *or* >>Informational *or* Experimental. Is that what you want? > > Yes. I=E2=80=99d like to leave this open. I=E2=80=99d hope we=E2=80=99d d= o the right thing when > the time comes to assign this space. OK; quite fine. Carry on.... Barry From nobody Tue Aug 18 05:17:47 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 02A621A0364; Tue, 18 Aug 2015 05:17:45 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.511 X-Spam-Level: X-Spam-Status: No, score=-14.511 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_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham 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 4odsHTy87KTl; Tue, 18 Aug 2015 05:17:43 -0700 (PDT) Received: from rcdn-iport-5.cisco.com (rcdn-iport-5.cisco.com [173.37.86.76]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 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from XCH-ALN-007.cisco.com (xch-aln-007.cisco.com [173.36.7.17]) by rcdn-core-7.cisco.com (8.14.5/8.14.5) with ESMTP id t7ICHgRl011170 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Tue, 18 Aug 2015 12:17:42 GMT Received: from xch-aln-007.cisco.com (173.36.7.17) by XCH-ALN-007.cisco.com (173.36.7.17) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Tue, 18 Aug 2015 07:17:41 -0500 Received: from xhc-aln-x07.cisco.com (173.36.12.81) by xch-aln-007.cisco.com (173.36.7.17) with Microsoft SMTP Server (TLS) id 15.0.1104.5 via Frontend Transport; Tue, 18 Aug 2015 07:17:41 -0500 Received: from xmb-aln-x06.cisco.com ([169.254.1.223]) by xhc-aln-x07.cisco.com ([173.36.12.81]) with mapi id 14.03.0248.002; Tue, 18 Aug 2015 07:17:41 -0500 From: "Acee Lindem (acee)" To: Ben Campbell , The IESG Thread-Topic: Ben Campbell's No Objection on draft-ietf-ospf-prefix-link-attr-10: (with COMMENT) Thread-Index: AQHQ2T5ZtwKI8RZf80++TEDzAEzsxp4RvgOA Date: Tue, 18 Aug 2015 12:17:40 +0000 Message-ID: References: <20150817224455.15921.50220.idtracker@ietfa.amsl.com> In-Reply-To: <20150817224455.15921.50220.idtracker@ietfa.amsl.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.36.7.28] Content-Type: text/plain; charset="utf-8" Content-ID: <5AFE71955872BD4D9089DBC9CFC4E972@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Ben Campbell's No Objection on draft-ietf-ospf-prefix-link-attr-10: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Aug 2015 12:17:45 -0000 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Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: OSPF WG List , "draft-ietf-ospf-prefix-link-attr.all@tools.ietf.org" Subject: [OSPF] FW: New Version Notification for draft-ietf-ospf-prefix-link-attr-11.txt X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Aug 2015 13:27:51 -0000 V2UgYmVsaWV2ZSB0aGUgLTExIHZlcnNpb24gYWRkcmVzc2VzIGFsbCB0aGUgcGVuZGluZyBjb21t ZW50cy4NClRoYW5rcywNCkFjZWUgDQoNCk9uIDgvMTgvMTUsIDk6MjAgQU0sICJpbnRlcm5ldC1k cmFmdHNAaWV0Zi5vcmciIDxpbnRlcm5ldC1kcmFmdHNAaWV0Zi5vcmc+DQp3cm90ZToNCg0KPg0K PkEgbmV3IHZlcnNpb24gb2YgSS1ELCBkcmFmdC1pZXRmLW9zcGYtcHJlZml4LWxpbmstYXR0ci0x MS50eHQNCj5oYXMgYmVlbiBzdWNjZXNzZnVsbHkgc3VibWl0dGVkIGJ5IEFjZWUgTGluZGVtIGFu ZCBwb3N0ZWQgdG8gdGhlDQo+SUVURiByZXBvc2l0b3J5Lg0KPg0KPk5hbWU6CQlkcmFmdC1pZXRm 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Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , The IESG , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Aug 2015 17:20:49 -0000 SGkgS2F0aGxlZW4sIA0KDQpPbiA4LzE4LzE1LCAxMDo1NyBBTSwgIkthdGhsZWVuIE1vcmlhcnR5 Ig0KPGthdGhsZWVuLm1vcmlhcnR5LmlldGZAZ21haWwuY29tPiB3cm90ZToNCg0KPlRoYW5rIHlv dSBmb3IgeW91ciBxdWljayByZXNwb25zZSwgQWNlZS4gIEkganVzdCBoYXZlIG9uZSB0d2VhayBp bmxpbmUNCj50aGF0IGlzIHVzdWFsbHkgaW1wb3J0YW50IGZyb20gYSBzZWN1cml0eSBzdGFuZHBv 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Y2xhcmlmeSB0aGlzIGVub3VnaCBmb3IgdGhpcw0KPj4+c2VjdXJpdHkgY29uc2lkZXJhdGlvbiBh bmQgaWYgdGhhdCdzIG5vdCBwb3NzaWJsZSwgY2FuIHlvdSBleHBsYWluIHdoYXQNCj4+PkknbSBt aXNzaW5nPw0KPj4+DQo+Pj5UaGFuayB5b3UuDQo+Pj4NCj4+Pg0KPj4+DQo+Pg0KPg0KPg0KPg0K Pi0tIA0KPg0KPkJlc3QgcmVnYXJkcywNCj5LYXRobGVlbg0KDQo= From nobody Tue Aug 18 12:35:54 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 00BF41A8953; Tue, 18 Aug 2015 12:35:51 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.511 X-Spam-Level: X-Spam-Status: No, score=-14.511 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_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) 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14:35:46 -0500 Received: from xmb-aln-x06.cisco.com ([169.254.1.223]) by xhc-aln-x09.cisco.com ([173.36.12.83]) with mapi id 14.03.0248.002; Tue, 18 Aug 2015 14:35:46 -0500 From: "Acee Lindem (acee)" To: Kathleen Moriarty Thread-Topic: Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) Thread-Index: AQHQ2T4vD1u2/uPu+k2Rr3P197oiCp4SLaKA///lEgCAAEyNgP//2HWA Date: Tue, 18 Aug 2015 19:35:45 +0000 Message-ID: References: <20150817200640.5272.4712.idtracker@ietfa.amsl.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.36.7.28] Content-Type: text/plain; charset="utf-8" Content-ID: <9D1D41BE483F6E459623B6F6CD1A34E9@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , The IESG , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Aug 2015 19:35:51 -0000 SGkgS2F0aGxlZW4sIA0KDQpPbiA4LzE4LzE1LCAxOjU0IFBNLCAiS2F0aGxlZW4gTW9yaWFydHki DQo8a2F0aGxlZW4ubW9yaWFydHkuaWV0ZkBnbWFpbC5jb20+IHdyb3RlOg0KDQo+QWNlZSwNCj4N Cj5PbiBUdWUsIEF1ZyAxOCwgMjAxNSBhdCAxOjIwIFBNLCBBY2VlIExpbmRlbSAoYWNlZSkgPGFj ZWVAY2lzY28uY29tPg0KPndyb3RlOg0KPj4gSGkgS2F0aGxlZW4sDQo+Pg0KPj4gT24gOC8xOC8x NSwgMTA6NTcgQU0sICJLYXRobGVlbiBNb3JpYXJ0eSINCj4+IDxrYXRobGVlbi5tb3JpYXJ0eS5p ZXRmQGdtYWlsLmNvbT4gd3JvdGU6DQo+Pg0KPj4+VGhhbmsgeW91IGZvciB5b3VyIHF1aWNrIHJl c3BvbnNlLCBBY2VlLiAgSSBqdXN0IGhhdmUgb25lIHR3ZWFrIGlubGluZQ0KPj4+dGhhdCBpcyB1 c3VhbGx5IGltcG9ydGFudCBmcm9tIGEgc2VjdXJpdHkgc3RhbmRwb2ludC4NCj4+Pg0KPj4+T24g 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Pj5UaGFuayB5b3UuDQo+Pj4+Pg0KPj4+Pj4NCj4+Pj4+DQo+Pj4+DQo+Pj4NCj4+Pg0KPj4+DQo+ Pj4tLQ0KPj4+DQo+Pj5CZXN0IHJlZ2FyZHMsDQo+Pj5LYXRobGVlbg0KPj4NCj4NCj4NCj4NCj4t LSANCj4NCj5CZXN0IHJlZ2FyZHMsDQo+S2F0aGxlZW4NCg0K From nobody Tue Aug 18 12:42:56 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D1EB51A9108; Tue, 18 Aug 2015 12:42:52 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.511 X-Spam-Level: X-Spam-Status: No, score=-14.511 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_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham 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 j3CZgi77ZMeM; Tue, 18 Aug 2015 12:42:50 -0700 (PDT) Received: from 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Moriarty Thread-Topic: Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) Thread-Index: AQHQ2T4vD1u2/uPu+k2Rr3P197oiCp4SLaKA///lEgCAAEyNgP//2HWAgABEpwD//74IgA== Date: Tue, 18 Aug 2015 19:42:46 +0000 Message-ID: References: <20150817200640.5272.4712.idtracker@ietfa.amsl.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.36.7.28] Content-Type: text/plain; charset="utf-8" Content-ID: <71B8B9FD220F854EBB4E76AE53C94A27@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , The IESG , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Aug 2015 19:42:53 -0000 DQoNCk9uIDgvMTgvMTUsIDM6MzggUE0sICJLYXRobGVlbiBNb3JpYXJ0eSINCjxrYXRobGVlbi5t b3JpYXJ0eS5pZXRmQGdtYWlsLmNvbT4gd3JvdGU6DQoNCj5PbiBUdWUsIEF1ZyAxOCwgMjAxNSBh dCAzOjM1IFBNLCBBY2VlIExpbmRlbSAoYWNlZSkgPGFjZWVAY2lzY28uY29tPg0KPndyb3RlOg0K Pj4gSGkgS2F0aGxlZW4sDQo+Pg0KPj4gT24gOC8xOC8xNSwgMTo1NCBQTSwgIkthdGhsZWVuIE1v cmlhcnR5Ig0KPj4gPGthdGhsZWVuLm1vcmlhcnR5LmlldGZAZ21haWwuY29tPiB3cm90ZToNCj4+ DQo+Pj5BY2VlLA0KPj4+DQo+Pj5PbiBUdWUsIEF1ZyAxOCwgMjAxNSBhdCAxOjIwIFBNLCBBY2Vl IExpbmRlbSAoYWNlZSkgPGFjZWVAY2lzY28uY29tPg0KPj4+d3JvdGU6DQo+Pj4+IEhpIEthdGhs ZWVuLA0KPj4+Pg0KPj4+PiBPbiA4LzE4LzE1LCAxMDo1NyBBTSwgIkthdGhsZWVuIE1vcmlhcnR5 Ig0KPj4+PiA8a2F0aGxlZW4ubW9yaWFydHkuaWV0ZkBnbWFpbC5jb20+IHdyb3RlOg0KPj4+Pg0K Pj4+Pj5UaGFuayB5b3UgZm9yIHlvdXIgcXVpY2sgcmVzcG9uc2UsIEFjZWUuICBJIGp1c3QgaGF2 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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] autolearn=ham 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 okHBfs44PAMf; Wed, 19 Aug 2015 08:51:47 -0700 (PDT) Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 6C5421B2AB6; Wed, 19 Aug 2015 08:51:47 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: "Stephen Farrell" To: "The IESG" X-Test-IDTracker: no X-IETF-IDTracker: 6.4.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20150819155147.21612.11511.idtracker@ietfa.amsl.com> Date: Wed, 19 Aug 2015 08:51:47 -0700 Archived-At: Cc: ospf@ietf.org, draft-ietf-ospf-prefix-link-attr@ietf.org, draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org, draft-ietf-ospf-prefix-link-attr.ad@ietf.org, ospf-chairs@ietf.org Subject: [OSPF] Stephen Farrell's No Objection on draft-ietf-ospf-prefix-link-attr-12: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Aug 2015 15:51:48 -0000 Stephen Farrell has entered the following ballot position for draft-ietf-ospf-prefix-link-attr-12: No Objection When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-ospf-prefix-link-attr/ ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- - The opaque ID field descriptions in sections 2 and 3 read a little oddly to me. What happens if someone decides to use up ID=0? Does that mean they can't overwrite that value until much later maybe? And what if a whole bunch of routers choose the same value (because it's configured or hard-coded)? I think you need a bit more text on that. And with only 24 bits the probability of a collision if you just pick randomly isn't that low, so I'm not sure if random selection is a good plan here either. (How often will a new one of these be seen?) - Do these opaque values get forwarded widely? If so, then I guess they may provide a covert channel. I didn't see that mentioned in the security considerations of RFC5250. Is it mentioned elsewhere? If not, is it worth a mention here? (Probably not, but thought I'd ask.) - Thanks for section 5. Nice to see. (Makes me wonder what those implementations do with the opaque ID though:-) From nobody Wed Aug 19 08:58:05 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E602D1B2ACB; Wed, 19 Aug 2015 08:58:02 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -101.999 X-Spam-Level: X-Spam-Status: No, score=-101.999 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, SPF_PASS=-0.001, USER_IN_WHITELIST=-100] autolearn=ham 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 krwlK45_843x; Wed, 19 Aug 2015 08:58:00 -0700 (PDT) Received: from mail-oi0-x234.google.com (mail-oi0-x234.google.com [IPv6:2607:f8b0:4003:c06::234]) (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 8DA481B2A8D; Wed, 19 Aug 2015 08:58:00 -0700 (PDT) Received: by oiev193 with SMTP id v193so5655298oie.3; Wed, 19 Aug 2015 08:58:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=Dang2a4k8X++9+EOBQhLy/ph7E7smdjtHLcKKPzrmhI=; b=g7yf6qJfWOFRZYsjkKdAdPP+a+/s/1etR/vzUahecRnHFQ9rbORV8xhuj9a3EyH51E c2/1Z3RjMT6u0uewjbz9aRiK9UabxGhL7hyUQ2HGFfUwMSjJdALXzaTya5CM6qOpTl/X wUZcgjn05E0dw/kjw6i8s6gvaolWDuys0eQ1QOx/sDNR7eDQ+xeTxMHMfN+YtHqF6FJd wSBxNwLv3jBa1Rn84cnEg5OVurjIyJyU0owyE5h9q2wNcfH1wWT1vFwFHhUdX/5G/U8J fiwm4t3syhM9l9Meoxb9Nl2LBTtkyoK7MwxvGV6Fcf4ayQsvKGubMB5AH3IsNq7IMPwb 4FCw== MIME-Version: 1.0 X-Received: by 10.202.175.143 with SMTP id y137mr10863221oie.22.1439999879878; Wed, 19 Aug 2015 08:57:59 -0700 (PDT) Received: by 10.60.176.138 with HTTP; Wed, 19 Aug 2015 08:57:59 -0700 (PDT) In-Reply-To: References: <20150817200640.5272.4712.idtracker@ietfa.amsl.com> Date: Wed, 19 Aug 2015 11:57:59 -0400 Message-ID: From: Alia Atlas To: Kathleen Moriarty Content-Type: multipart/alternative; boundary=001a113ce89e511e40051dac19c2 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , The IESG , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Aug 2015 15:58:03 -0000 --001a113ce89e511e40051dac19c2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi Kathleen, As discussed, the type field in the TLVs and sub-TLVs are limited to their range. This draft in the IANA considerations specifies what the range for those values are. This is just as has been done with other OSPF TLVs ( for example http://www.iana.org/assignments/ospf-traffic-eng-tlvs/ospf-traffic-eng-tlvs= .xhtml#top-level ) For future extensibility, it is important to be able to distribute unknown TLVs throughout the IGP; sometimes, only routers in particular roles will care about the information. However, the length field constrains how big the value can be and any problems with parsing it into an opaque value would cause the LSA to be considered malformed. I hope this clarifies? Thanks, Alia On Wed, Aug 19, 2015 at 10:44 AM, Kathleen Moriarty < kathleen.moriarty.ietf@gmail.com> wrote: > Hi Acee, > > Alia and I talked about this yesterday and she will be following up > from that discussion. It may just point back to previous RFCs that > cover my concern or may result in a change to text. > > Stand by... > > Thank you. > > On Tue, Aug 18, 2015 at 3:42 PM, Acee Lindem (acee) > wrote: > > > > > > On 8/18/15, 3:38 PM, "Kathleen Moriarty" > > wrote: > > > >>On Tue, Aug 18, 2015 at 3:35 PM, Acee Lindem (acee) > >>wrote: > >>> Hi Kathleen, > >>> > >>> On 8/18/15, 1:54 PM, "Kathleen Moriarty" > >>> wrote: > >>> > >>>>Acee, > >>>> > >>>>On Tue, Aug 18, 2015 at 1:20 PM, Acee Lindem (acee) > >>>>wrote: > >>>>> Hi Kathleen, > >>>>> > >>>>> On 8/18/15, 10:57 AM, "Kathleen Moriarty" > >>>>> wrote: > >>>>> > >>>>>>Thank you for your quick response, Acee. I just have one tweak > inline > >>>>>>that is usually important from a security standpoint. > >>>>>> > >>>>>>On Mon, Aug 17, 2015 at 6:46 PM, Acee Lindem (acee) > >>>>>>wrote: > >>>>>>> Hi Kathleen, > >>>>>>> Here are the updated "Security Considerations=E2=80=9D after addr= essing > >>>>>>>Alvaro=E2=80=99s > >>>>>>> comments. > >>>>>>> > >>>>>>> 6. Security Considerations > >>>>>>> > >>>>>>> In general, new LSAs defined in this document are subject to t= he > >>>>>>>same > >>>>>>> security concerns as those described in [OSPFV2] and [OPAQUE]. > >>>>>>> > >>>>>>> OSPFv2 applications utilizing these OSPFv2 extensions must > define > >>>>>>>the > >>>>>>> security considerations relating to those applications in the > >>>>>>> the specifications corresponding to those applications. > >>>>>>> > >>>>>>> Additionally, implementations must assure that malformed TLV a= nd > >>>>>>>Sub- > >>>>>>> TLV permutations are detected and do not provide a vulnerabili= ty > >>>>>>>for > >>>>>>> attackers to crash the OSPFv2 router or routing process. > >>>>>>>Malformed > >>>>>>> LSAs MUST NOT be stored in the Link State Database (LSDB), > >>>>>>> acknowledged, or reflooded. Reception of malformed LSAs SHOUL= D > >>>>>>>be > >>>>>>> counted or logged for further analysis. > >>>>>> > >>>>>>Can you add in a sentence that says something to the effect of: > >>>>>> > >>>>>>Only valid TLVs and Sub-TLVs may be processed according to > >>>>>>specifications in section 2. > >>>>> > >>>>> This depends on how you define =E2=80=9Cvalid=E2=80=9D. For extenda= bility, an > >>>>> implementation considers any TLV or Sub-TLV that is properly formed > as > >>>>> valid. Of course, it only uses the TLV and Sub-TLVs that it knows h= ow > >>>>>to > >>>>> interpret. Hence, the LSA will be considered valid and be stored in > >>>>>the > >>>>> LSDB and reflooded. This is the reason for using a TLV based encodi= ng > --001a113ce89e511e40051dac19c2 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Kathleen,

As discussed, the type fie= ld in the TLVs and sub-TLVs are limited to their range.
This draf= t in the IANA considerations specifies what the range for those values are.=
This is just as has been done with other OSPF TLVs ( for example= =C2=A0
<= div>For future extensibility, it is important to be able to distribute unkn= own TLVs
throughout the IGP; sometimes, only routers in particula= r roles will care about the information.

However, = the length field constrains how big the value can be and any problems
=
with parsing it into an opaque value would cause the LSA to be conside= red malformed.

I hope this clarifies?
Thanks,
Alia
<= br>
On Wed, Aug 19, 2015 at 10:44 AM, Kathleen Mo= riarty <kathleen.moriarty.ietf@gmail.com> wro= te:
Hi Acee,

Alia and I talked about this yesterday and she will be following up
from that discussion.=C2=A0 It may just point back to previous RFCs that cover my concern or may result in a change to text.

Stand by...

Thank you.

On Tue, Aug 18, 2015 at 3:42 PM, Acee Lindem (acee) <acee@cisco.com> wrote:
>
>
> On 8/18/15, 3:38 PM, "Kathleen Moriarty"
> <kathleen.moria= rty.ietf@gmail.com> wrote:
>
>>On Tue, Aug 18, 2015 at 3:35 PM, Acee Lindem (acee) <acee@cisco.com>
>>wrote:
>>> Hi Kathleen,
>>>
>>> On 8/18/15, 1:54 PM, "Kathleen Moriarty"
>>> <kathle= en.moriarty.ietf@gmail.com> wrote:
>>>
>>>>Acee,
>>>>
>>>>On Tue, Aug 18, 2015 at 1:20 PM, Acee Lindem (acee) <acee@cisco.com>
>>>>wrote:
>>>>> Hi Kathleen,
>>>>>
>>>>> On 8/18/15, 10:57 AM, "Kathleen Moriarty" >>>>> <kathleen.moriarty.ietf@gmail.com> wrote:
>>>>>
>>>>>>Thank you for your quick response, Acee.=C2=A0 I ju= st have one tweak inline
>>>>>>that is usually important from a security standpoin= t.
>>>>>>
>>>>>>On Mon, Aug 17, 2015 at 6:46 PM, Acee Lindem (acee)= <acee@cisco.com>
>>>>>>wrote:
>>>>>>> Hi Kathleen,
>>>>>>> Here are the updated "Security Considerat= ions=E2=80=9D after addressing
>>>>>>>Alvaro=E2=80=99s
>>>>>>> comments.
>>>>>>>
>>>>>>> 6.=C2=A0 Security Considerations
>>>>>>>
>>>>>>>=C2=A0 =C2=A0 In general, new LSAs defined in t= his document are subject to the
>>>>>>>same
>>>>>>>=C2=A0 =C2=A0 security concerns as those descri= bed in [OSPFV2] and [OPAQUE].
>>>>>>>
>>>>>>>=C2=A0 =C2=A0 OSPFv2 applications utilizing the= se OSPFv2 extensions must define
>>>>>>>the
>>>>>>>=C2=A0 =C2=A0 security considerations relating = to those applications in the
>>>>>>>=C2=A0 =C2=A0 the specifications corresponding = to those applications.
>>>>>>>
>>>>>>>=C2=A0 =C2=A0 Additionally, implementations mus= t assure that malformed TLV and
>>>>>>>Sub-
>>>>>>>=C2=A0 =C2=A0 TLV permutations are detected and= do not provide a vulnerability
>>>>>>>for
>>>>>>>=C2=A0 =C2=A0 attackers to crash the OSPFv2 rou= ter or routing process.
>>>>>>>Malformed
>>>>>>>=C2=A0 =C2=A0 LSAs MUST NOT be stored in the Li= nk State Database (LSDB),
>>>>>>>=C2=A0 =C2=A0 acknowledged, or reflooded.=C2=A0= Reception of malformed LSAs SHOULD
>>>>>>>be
>>>>>>>=C2=A0 =C2=A0 counted or logged for further ana= lysis.
>>>>>>
>>>>>>Can you add in a sentence that says something to th= e effect of:
>>>>>>
>>>>>>Only valid TLVs and Sub-TLVs may be processed accor= ding to
>>>>>>specifications in section 2.
>>>>>
>>>>> This depends on how you define =E2=80=9Cvalid=E2=80=9D= . For extendability, an
>>>>> implementation considers any TLV or Sub-TLV that is pr= operly formed as
>>>>> valid. Of course, it only uses the TLV and Sub-TLVs th= at it knows how
>>>>>to
>>>>> interpret. Hence, the LSA will be considered valid and= be stored in
>>>>>the
>>>>> LSDB and reflooded. This is the reason for using a TLV= based encoding

--001a113ce89e511e40051dac19c2-- From nobody Wed Aug 19 09:46:37 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 898911A1A83; Wed, 19 Aug 2015 09:46:35 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.511 X-Spam-Level: X-Spam-Status: No, score=-14.511 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_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham 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 etV5YYLIqf0h; Wed, 19 Aug 2015 09:46:34 -0700 (PDT) Received: from rcdn-iport-7.cisco.com (rcdn-iport-7.cisco.com [173.37.86.78]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id B10311A1A4B; 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Wed, 19 Aug 2015 16:46:32 GMT Received: from xch-rcd-019.cisco.com (173.37.102.29) by XCH-RCD-019.cisco.com (173.37.102.29) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Wed, 19 Aug 2015 11:46:31 -0500 Received: from xhc-rcd-x12.cisco.com (173.37.183.86) by xch-rcd-019.cisco.com (173.37.102.29) with Microsoft SMTP Server (TLS) id 15.0.1104.5 via Frontend Transport; Wed, 19 Aug 2015 11:46:31 -0500 Received: from xmb-aln-x06.cisco.com ([169.254.1.223]) by xhc-rcd-x12.cisco.com ([173.37.183.86]) with mapi id 14.03.0248.002; Wed, 19 Aug 2015 11:46:31 -0500 From: "Acee Lindem (acee)" To: Stephen Farrell , The IESG Thread-Topic: Stephen Farrell's No Objection on draft-ietf-ospf-prefix-link-attr-12: (with COMMENT) Thread-Index: AQHQ2pb3XkOA7APQYkCp7JlAt3ZCvZ4TmMkA Date: Wed, 19 Aug 2015 16:46:31 +0000 Message-ID: References: <20150819155147.21612.11511.idtracker@ietfa.amsl.com> In-Reply-To: <20150819155147.21612.11511.idtracker@ietfa.amsl.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.36.7.28] Content-Type: text/plain; charset="utf-8" Content-ID: <6E69606B1E6C464C899D76419FC0A056@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Stephen Farrell's No Objection on draft-ietf-ospf-prefix-link-attr-12: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Aug 2015 16:46:35 -0000 SGkgU3RlcGhlbiwgDQoNCk9uIDgvMTkvMTUsIDExOjUxIEFNLCAiU3RlcGhlbiBGYXJyZWxsIiA8 c3RlcGhlbi5mYXJyZWxsQGNzLnRjZC5pZT4gd3JvdGU6DQoNCj5TdGVwaGVuIEZhcnJlbGwgaGFz IGVudGVyZWQgdGhlIGZvbGxvd2luZyBiYWxsb3QgcG9zaXRpb24gZm9yDQo+ZHJhZnQtaWV0Zi1v c3BmLXByZWZpeC1saW5rLWF0dHItMTI6IE5vIE9iamVjdGlvbg0KPg0KPldoZW4gcmVzcG9uZGlu ZywgcGxlYXNlIGtlZXAgdGhlIHN1YmplY3QgbGluZSBpbnRhY3QgYW5kIHJlcGx5IHRvIGFsbA0K PmVtYWlsIGFkZHJlc3NlcyBpbmNsdWRlZCBpbiB0aGUgVG8gYW5kIENDIGxpbmVzLiAoRmVlbCBm cmVlIHRvIGN1dCB0aGlzDQo+aW50cm9kdWN0b3J5IHBhcmFncmFwaCwgaG93ZXZlci4pDQo+DQo+ DQo+UGxlYXNlIHJlZmVyIHRvIGh0dHBzOi8vd3d3LmlldGYub3JnL2llc2cvc3RhdGVtZW50L2Rp c2N1c3MtY3JpdGVyaWEuaHRtbA0KPmZvciBtb3JlIGluZm9ybWF0aW9uIGFib3V0IElFU0cgRElT Q1VTUyBhbmQgQ09NTUVOVCBwb3NpdGlvbnMuDQo+DQo+DQo+VGhlIGRvY3VtZW50LCBhbG9uZyB3 aXRoIG90aGVyIGJhbGxvdCBwb3NpdGlvbnMsIGNhbiBiZSBmb3VuZCBoZXJlOg0KPmh0dHBzOi8v ZGF0YXRyYWNrZXIuaWV0Zi5vcmcvZG9jL2RyYWZ0LWlldGYtb3NwZi1wcmVmaXgtbGluay1hdHRy Lw0KPg0KPg0KPg0KPi0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0NCj5DT01NRU5UOg0KPi0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0NCj4N Cj4NCj4tIFRoZSBvcGFxdWUgSUQgZmllbGQgZGVzY3JpcHRpb25zIGluIHNlY3Rpb25zIDIgYW5k IDMgcmVhZCBhDQo+bGl0dGxlIG9kZGx5IHRvIG1lLiBXaGF0IGhhcHBlbnMgaWYgc29tZW9uZSBk ZWNpZGVzIHRvIHVzZSB1cA0KPklEPTA/IERvZXMgdGhhdCBtZWFuIHRoZXkgY2FuJ3Qgb3Zlcndy aXRlIHRoYXQgdmFsdWUgdW50aWwNCj5tdWNoIGxhdGVyIG1heWJlPyANCg0KU2luY2UgaXQgaXMg b25seSB0byBwcm92aWRlIHVuaXF1ZW5lc3MgZm9yIG9wYXF1ZSBMU0FzIG9mIHRoZSBzYW1lIHR5 cGUNCm9yaWdpbmF0ZWQgYnkgdGhlIHNhbWUgcm91dGVyLCB0aGVyZSBpcyBubyBjb25zZXF1ZW5j ZSBvZiB1c2luZyAwLg0KDQoNCj5BbmQgd2hhdCBpZiBhIHdob2xlIGJ1bmNoIG9mIHJvdXRlcnMg Y2hvb3NlDQo+dGhlIHNhbWUgdmFsdWUgKGJlY2F1c2UgaXQncyBjb25maWd1cmVkIG9yIGhhcmQt Y29kZWQpPyBJDQo+dGhpbmsgeW91IG5lZWQgYSBiaXQgbW9yZSB0ZXh0IG9uIHRoYXQuIEFuZCB3 aXRoIG9ubHkgMjQgYml0cw0KPnRoZSBwcm9iYWJpbGl0eSBvZiBhIGNvbGxpc2lvbiBpZiB5b3Ug anVzdCBwaWNrIHJhbmRvbWx5IGlzbid0DQo+dGhhdCBsb3csIHNvIEknbSBub3Qgc3VyZSBpZiBy YW5kb20gc2VsZWN0aW9uIGlzIGEgZ29vZCBwbGFuDQo+aGVyZSBlaXRoZXIuIChIb3cgb2Z0ZW4g d2lsbCBhIG5ldyBvbmUgb2YgdGhlc2UgYmUgc2Vlbj8pDQoNClRoZSBzY29wZSBvZiB0aGUgT3Bh cXVlIElEIGlzIG9ubHkgdGhlIG9yaWdpbmF0aW5nIHJvdXRlciBzbyBlYWNoIGhhcyBpdHMNCm93 biBudW1iZXIgc3BhY2UuICANCg0KPg0KPi0gRG8gdGhlc2Ugb3BhcXVlIHZhbHVlcyBnZXQgZm9y d2FyZGVkIHdpZGVseT8gSWYgc28sIHRoZW4gSQ0KPmd1ZXNzIHRoZXkgbWF5IHByb3ZpZGUgYSBj b3ZlcnQgY2hhbm5lbC4gSSBkaWRuJ3Qgc2VlIHRoYXQNCj5tZW50aW9uZWQgaW4gdGhlIHNlY3Vy aXR5IGNvbnNpZGVyYXRpb25zIG9mIFJGQzUyNTAuIElzIGl0DQo+bWVudGlvbmVkIGVsc2V3aGVy ZT8gSWYgbm90LCBpcyBpdCB3b3J0aCBhIG1lbnRpb24gaGVyZT8NCj4oUHJvYmFibHkgbm90LCBi dXQgdGhvdWdodCBJJ2QgYXNrLikNCg0KVW5saWtlIHVudXNlZCBwcm90b2NvbCBmaWVsZHMsIGl0 IGlzIG5vdCByZWFsbHkgY292ZXJ0IHNpbmNlIGl0IGlzIGEgcGFydA0Kb2YgdGhlIE9TUEYgTFNB IElEIGFuZCBpcyB2aWV3YWJsZSBpbiBPU1BGIE9BTSBhbmQgbG9ncy4gU2luY2UgaXQgaXMganVz dA0KYSBudW1iZXIsIG9uZSBjb3VsZCwgaG93ZXZlciwgc2V0IGl0IGFyYml0cmFyaWx5Lg0KDQoN Cj4NCj4tIFRoYW5rcyBmb3Igc2VjdGlvbiA1LiBOaWNlIHRvIHNlZS4gKE1ha2VzIG1lIHdvbmRl ciB3aGF0DQo+dGhvc2UgaW1wbGVtZW50YXRpb25zIGRvIHdpdGggdGhlIG9wYXF1ZSBJRCB0aG91 Z2g6LSkNCg0KVGhlIE9wYXF1ZSBJRCBpcyBqdXN0IHVzZWQgYXMgYSBrZXkgZm9yIExTQXMuDQoN ClRoYW5rcywNCkFjZWUNCg0KDQo+DQo+DQoNCg== From nobody Wed Aug 19 09:56:05 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 935E61A1B13; 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Wed, 19 Aug 2015 17:55:58 +0100 (IST) Received: from [134.226.36.180] (stephen-think.dsg.cs.tcd.ie [134.226.36.180]) by mercury.scss.tcd.ie (Postfix) with ESMTPSA id F2CEFBE58; Wed, 19 Aug 2015 17:55:57 +0100 (IST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cs.tcd.ie; s=mail; t=1440003358; bh=K5dAIUqOEtpyUOa85qhmRTi/jk1DMNd7/wJeP2nINA0=; h=Date:From:To:CC:Subject:References:In-Reply-To:From; b=cZW+OCkE33/Ypm/hoA3B22/hYmuofrTiHTacs7TIKv4TsA+1kjTc3pbJMf1px5Gqd /ftBm+9SMKW3rqlyleS+T4d18qlaZtrbLhCTW4bdrmptiCuHOLEKaLhhciaBHcYDVi gwTs6f4jBMB314qeW7j9e7b1z+sWwyDjj/Cn1r8s= Message-ID: <55D4B51D.6070302@cs.tcd.ie> Date: Wed, 19 Aug 2015 17:55:57 +0100 From: Stephen Farrell User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.8.0 MIME-Version: 1.0 To: "Acee Lindem (acee)" , The IESG References: <20150819155147.21612.11511.idtracker@ietfa.amsl.com> In-Reply-To: OpenPGP: id=D66EA7906F0B897FB2E97D582F3C8736805F8DA2; url= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Archived-At: Cc: "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "ospf@ietf.org" , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Stephen Farrell's No Objection on draft-ietf-ospf-prefix-link-attr-12: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Aug 2015 16:56:01 -0000 On 19/08/15 17:46, Acee Lindem (acee) wrote: > Hi Stephen, > > On 8/19/15, 11:51 AM, "Stephen Farrell" wrote: > >> Stephen Farrell has entered the following ballot position for >> draft-ietf-ospf-prefix-link-attr-12: No Objection >> >> When responding, please keep the subject line intact and reply to all >> email addresses included in the To and CC lines. (Feel free to cut this >> introductory paragraph, however.) >> >> >> Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html >> for more information about IESG DISCUSS and COMMENT positions. >> >> >> The document, along with other ballot positions, can be found here: >> https://datatracker.ietf.org/doc/draft-ietf-ospf-prefix-link-attr/ >> >> >> >> ---------------------------------------------------------------------- >> COMMENT: >> ---------------------------------------------------------------------- >> >> >> - The opaque ID field descriptions in sections 2 and 3 read a >> little oddly to me. What happens if someone decides to use up >> ID=0? Does that mean they can't overwrite that value until >> much later maybe? > > Since it is only to provide uniqueness for opaque LSAs of the same type > originated by the same router, there is no consequence of using 0. Well one cannot send a value less than zero though can you? Which means that you can't supercede the one that used zero I think. (It says the lowest value has precedence doesn't it?) > > >> And what if a whole bunch of routers choose >> the same value (because it's configured or hard-coded)? I >> think you need a bit more text on that. And with only 24 bits >> the probability of a collision if you just pick randomly isn't >> that low, so I'm not sure if random selection is a good plan >> here either. (How often will a new one of these be seen?) > > The scope of the Opaque ID is only the originating router so each has its > own number space. Where does it say that? Sorry if I missed it. > >> >> - Do these opaque values get forwarded widely? If so, then I >> guess they may provide a covert channel. I didn't see that >> mentioned in the security considerations of RFC5250. Is it >> mentioned elsewhere? If not, is it worth a mention here? >> (Probably not, but thought I'd ask.) > > Unlike unused protocol fields, it is not really covert since it is a part > of the OSPF LSA ID and is viewable in OSPF OAM and logs. Since it is just > a number, one could, however, set it arbitrarily. So that's a "no, no need to mention that" then is it? (Which is ok.) S. > > >> >> - Thanks for section 5. Nice to see. (Makes me wonder what >> those implementations do with the opaque ID though:-) > > The Opaque ID is just used as a key for LSAs. > > Thanks, > Acee > > >> >> > From nobody Wed Aug 19 10:03:52 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E66711A1BAE; Wed, 19 Aug 2015 10:03:43 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.511 X-Spam-Level: X-Spam-Status: No, score=-14.511 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_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham 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 pLOYGNGMYVq2; Wed, 19 Aug 2015 10:03:36 -0700 (PDT) Received: from alln-iport-1.cisco.com (alln-iport-1.cisco.com 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d="scan'208";a="180235617" Received: from rcdn-core-1.cisco.com ([173.37.93.152]) by alln-iport-1.cisco.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 19 Aug 2015 17:03:36 +0000 Received: from XCH-ALN-011.cisco.com (xch-aln-011.cisco.com [173.36.7.21]) by rcdn-core-1.cisco.com (8.14.5/8.14.5) with ESMTP id t7JH3ZGT025044 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Wed, 19 Aug 2015 17:03:35 GMT Received: from xch-aln-011.cisco.com (173.36.7.21) by XCH-ALN-011.cisco.com (173.36.7.21) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Wed, 19 Aug 2015 12:03:34 -0500 Received: from xhc-aln-x06.cisco.com (173.36.12.80) by xch-aln-011.cisco.com (173.36.7.21) with Microsoft SMTP Server (TLS) id 15.0.1104.5 via Frontend Transport; Wed, 19 Aug 2015 12:03:34 -0500 Received: from xmb-aln-x06.cisco.com ([169.254.1.223]) by xhc-aln-x06.cisco.com ([173.36.12.80]) with mapi id 14.03.0248.002; Wed, 19 Aug 2015 12:03:32 -0500 From: "Acee Lindem (acee)" To: Stephen Farrell , The IESG Thread-Topic: Stephen Farrell's No Objection on draft-ietf-ospf-prefix-link-attr-12: (with COMMENT) Thread-Index: AQHQ2pb3XkOA7APQYkCp7JlAt3ZCvZ4TmMkAgABFsID//78UgA== Date: Wed, 19 Aug 2015 17:03:32 +0000 Message-ID: References: <20150819155147.21612.11511.idtracker@ietfa.amsl.com> <55D4B51D.6070302@cs.tcd.ie> In-Reply-To: <55D4B51D.6070302@cs.tcd.ie> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.36.7.28] Content-Type: text/plain; charset="utf-8" Content-ID: <6BFFA062D4A1104ABA12E2DCFE77EA04@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "ospf@ietf.org" , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Stephen Farrell's No Objection on draft-ietf-ospf-prefix-link-attr-12: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Aug 2015 17:03:44 -0000 DQoNCk9uIDgvMTkvMTUsIDEyOjU1IFBNLCAiU3RlcGhlbiBGYXJyZWxsIiA8c3RlcGhlbi5mYXJy ZWxsQGNzLnRjZC5pZT4gd3JvdGU6DQoNCj4NCj4NCj5PbiAxOS8wOC8xNSAxNzo0NiwgQWNlZSBM aW5kZW0gKGFjZWUpIHdyb3RlOg0KPj4gSGkgU3RlcGhlbiwgDQo+PiANCj4+IE9uIDgvMTkvMTUs IDExOjUxIEFNLCAiU3RlcGhlbiBGYXJyZWxsIiA8c3RlcGhlbi5mYXJyZWxsQGNzLnRjZC5pZT4N Cj4+d3JvdGU6DQo+PiANCj4+PiBTdGVwaGVuIEZhcnJlbGwgaGFzIGVudGVyZWQgdGhlIGZvbGxv d2luZyBiYWxsb3QgcG9zaXRpb24gZm9yDQo+Pj4gZHJhZnQtaWV0Zi1vc3BmLXByZWZpeC1saW5r LWF0dHItMTI6IE5vIE9iamVjdGlvbg0KPj4+DQo+Pj4gV2hlbiByZXNwb25kaW5nLCBwbGVhc2Ug a2VlcCB0aGUgc3ViamVjdCBsaW5lIGludGFjdCBhbmQgcmVwbHkgdG8gYWxsDQo+Pj4gZW1haWwg YWRkcmVzc2VzIGluY2x1ZGVkIGluIHRoZSBUbyBhbmQgQ0MgbGluZXMuIChGZWVsIGZyZWUgdG8g Y3V0IHRoaXMNCj4+PiBpbnRyb2R1Y3RvcnkgcGFyYWdyYXBoLCBob3dldmVyLikNCj4+Pg0KPj4+ 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Oi0pDQo+PiANCj4+IFRoZSBPcGFxdWUgSUQgaXMganVzdCB1c2VkIGFzIGEga2V5IGZvciBMU0Fz Lg0KPj4gDQo+PiBUaGFua3MsDQo+PiBBY2VlDQo+PiANCj4+IA0KPj4+DQo+Pj4NCj4+IA0KDQo= From nobody Wed Aug 19 11:07:44 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 133971A877A; Wed, 19 Aug 2015 11:07:42 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.511 X-Spam-Level: X-Spam-Status: No, score=-14.511 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_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham 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 q8jokaDrWD95; Wed, 19 Aug 2015 11:07:35 -0700 (PDT) Received: from alln-iport-1.cisco.com (alln-iport-1.cisco.com 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d="scan'208";a="180255096" Received: from alln-core-4.cisco.com ([173.36.13.137]) by alln-iport-1.cisco.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 19 Aug 2015 18:07:34 +0000 Received: from XCH-ALN-011.cisco.com (xch-aln-011.cisco.com [173.36.7.21]) by alln-core-4.cisco.com (8.14.5/8.14.5) with ESMTP id t7JI7Y9W021906 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Wed, 19 Aug 2015 18:07:34 GMT Received: from xch-aln-011.cisco.com (173.36.7.21) by XCH-ALN-011.cisco.com (173.36.7.21) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Wed, 19 Aug 2015 13:07:33 -0500 Received: from xhc-aln-x10.cisco.com (173.36.12.84) by xch-aln-011.cisco.com (173.36.7.21) with Microsoft SMTP Server (TLS) id 15.0.1104.5 via Frontend Transport; Wed, 19 Aug 2015 13:07:33 -0500 Received: from xmb-aln-x06.cisco.com ([169.254.1.223]) by xhc-aln-x10.cisco.com ([173.36.12.84]) with mapi id 14.03.0248.002; Wed, 19 Aug 2015 13:07:33 -0500 From: "Acee Lindem (acee)" To: Kathleen Moriarty , Alia Atlas Thread-Topic: Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) Thread-Index: AQHQ2T4vD1u2/uPu+k2Rr3P197oiCp4SLaKA///lEgCAAEyNgP//2HWAgABEpwD//74IgAAsnZPNAAJZlYA= Date: Wed, 19 Aug 2015 18:07:32 +0000 Message-ID: References: <20150817200640.5272.4712.idtracker@ietfa.amsl.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.36.7.28] Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , The IESG , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Aug 2015 18:07:42 -0000 SGkgS2F0aGxlZW4sIA0KDQpPbiA4LzE5LzE1LCAyOjAwIFBNLCAiS2F0aGxlZW4gTW9yaWFydHki DQo8a2F0aGxlZW4ubW9yaWFydHkuaWV0ZkBnbWFpbC5jb20+IHdyb3RlOg0KDQo+SGkgQWxpYSwN Cj4NCj5UaGFua3MgZm9yIHRoZSB3cml0ZSB1cC4gIEkgaGF2ZSBhIGNvdXBsZSBvZiBxdWVzdGlv bnMgaW4tbGluZS4NCj4NCj5PbiBXZWQsIEF1ZyAxOSwgMjAxNSBhdCAxMTo1NyBBTSwgQWxpYSBB dGxhcyA8YWthdGxhc0BnbWFpbC5jb20+IHdyb3RlOg0KPj4gSGkgS2F0aGxlZW4sDQo+Pg0KPj4g QXMgZGlzY3Vzc2VkLCB0aGUgdHlwZSBmaWVsZCBpbiB0aGUgVExWcyBhbmQgc3ViLVRMVnMgYXJl IGxpbWl0ZWQgdG8NCj4+dGhlaXINCj4+IHJhbmdlLg0KPj4gVGhpcyBkcmFmdCBpbiB0aGUgSUFO QSBjb25zaWRlcmF0aW9ucyBzcGVjaWZpZXMgd2hhdCB0aGUgcmFuZ2UgZm9yIHRob3NlDQo+PiB2 YWx1ZXMgYXJlLg0KPj4gVGhpcyBpcyBqdXN0IGFzIGhhcyBiZWVuIGRvbmUgd2l0aCBvdGhlciBP U1BGIFRMVnMgKCBmb3IgZXhhbXBsZQ0KPj4gDQo+Pmh0dHA6Ly93d3cuaWFuYS5vcmcvYXNzaWdu bWVudHMvb3NwZi10cmFmZmljLWVuZy10bHZzL29zcGYtdHJhZmZpYy1lbmctdGwNCj4+dnMueGh0 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DQo+Pj4gPj4+Pj4+PiBIaSBLYXRobGVlbiwNCj4+PiA+Pj4+Pj4+IEhlcmUgYXJlIHRoZSB1cGRh dGVkICJTZWN1cml0eSBDb25zaWRlcmF0aW9uc+KAnSBhZnRlciBhZGRyZXNzaW5nDQo+Pj4gPj4+ Pj4+PkFsdmFyb+KAmXMNCj4+PiA+Pj4+Pj4+IGNvbW1lbnRzLg0KPj4+ID4+Pj4+Pj4NCj4+PiA+ Pj4+Pj4+IDYuICBTZWN1cml0eSBDb25zaWRlcmF0aW9ucw0KPj4+ID4+Pj4+Pj4NCj4+PiA+Pj4+ Pj4+ICAgIEluIGdlbmVyYWwsIG5ldyBMU0FzIGRlZmluZWQgaW4gdGhpcyBkb2N1bWVudCBhcmUg c3ViamVjdCB0bw0KPj4+ID4+Pj4+Pj4gdGhlDQo+Pj4gPj4+Pj4+PnNhbWUNCj4+PiA+Pj4+Pj4+ ICAgIHNlY3VyaXR5IGNvbmNlcm5zIGFzIHRob3NlIGRlc2NyaWJlZCBpbiBbT1NQRlYyXSBhbmQN Cj4+PltPUEFRVUVdDQoNCg== From nobody Wed Aug 19 11:44:22 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 48D9A1A007C; Wed, 19 Aug 2015 11:44:21 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.511 X-Spam-Level: X-Spam-Status: No, score=-14.511 tagged_above=-999 required=5 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from xhc-rcd-x13.cisco.com (173.37.183.87) by xch-aln-006.cisco.com (173.36.7.16) with Microsoft SMTP Server (TLS) id 15.0.1104.5 via Frontend Transport; Wed, 19 Aug 2015 13:44:16 -0500 Received: from xmb-aln-x06.cisco.com ([169.254.1.223]) by xhc-rcd-x13.cisco.com ([173.37.183.87]) with mapi id 14.03.0248.002; Wed, 19 Aug 2015 13:44:16 -0500 From: "Acee Lindem (acee)" To: Kathleen Moriarty Thread-Topic: Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) Thread-Index: AQHQ2T4vD1u2/uPu+k2Rr3P197oiCp4SLaKA///lEgCAAEyNgP//2HWAgABEpwD//74IgAAsnZPNAAJZlYAACJyhAP//xV6A Date: Wed, 19 Aug 2015 18:44:15 +0000 Message-ID: References: <20150817200640.5272.4712.idtracker@ietfa.amsl.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.37.102.24] Content-Type: text/plain; charset="utf-8" Content-ID: <1982A31774A82046A0607306012DB626@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , The IESG , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Aug 2015 18:44:21 -0000 SGkgS2F0aGxlZW4sDQoNCk9uIDgvMTkvMTUsIDI6MTQgUE0sICJLYXRobGVlbiBNb3JpYXJ0eSIN CjxrYXRobGVlbi5tb3JpYXJ0eS5pZXRmQGdtYWlsLmNvbT4gd3JvdGU6DQoNCj5IaSBBY2VlLA0K Pg0KPk9uIFdlZCwgQXVnIDE5LCAyMDE1IGF0IDI6MDcgUE0sIEFjZWUgTGluZGVtIChhY2VlKSA8 YWNlZUBjaXNjby5jb20+DQo+d3JvdGU6DQo+PiBIaSBLYXRobGVlbiwNCj4+DQo+PiBPbiA4LzE5 LzE1LCAyOjAwIFBNLCAiS2F0aGxlZW4gTW9yaWFydHkiDQo+PiA8a2F0aGxlZW4ubW9yaWFydHku 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on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) Thread-Index: AQHQ2T4vD1u2/uPu+k2Rr3P197oiCp4SLaKA///lEgCAAEyNgP//2HWAgABEpwD//74IgAAsnZPNAAJZlYAACJyhAP//xV6AgABG/QD//8ITgA== Date: Wed, 19 Aug 2015 19:16:43 +0000 Message-ID: References: <20150817200640.5272.4712.idtracker@ietfa.amsl.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.37.102.24] Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , The IESG , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Aug 2015 19:16:48 -0000 DQoNCk9uIDgvMTkvMTUsIDI6NTggUE0sICJLYXRobGVlbiBNb3JpYXJ0eSINCjxrYXRobGVlbi5t b3JpYXJ0eS5pZXRmQGdtYWlsLmNvbT4gd3JvdGU6DQoNCj5IaSBBY2VlLA0KPg0KPk9uIFdlZCwg QXVnIDE5LCAyMDE1IGF0IDI6NDQgUE0sIEFjZWUgTGluZGVtIChhY2VlKSA8YWNlZUBjaXNjby5j b20+DQo+d3JvdGU6DQo+PiBIaSBLYXRobGVlbiwNCj4+DQo+PiBPbiA4LzE5LzE1LCAyOjE0IFBN LCAiS2F0aGxlZW4gTW9yaWFydHkiDQo+PiA8a2F0aGxlZW4ubW9yaWFydHkuaWV0ZkBnbWFpbC5j b20+IHdyb3RlOg0KPj4NCj4+PkhpIEFjZWUsDQo+Pj4NCj4+Pk9uIFdlZCwgQXVnIDE5LCAyMDE1 IGF0IDI6MDcgUE0sIEFjZWUgTGluZGVtIChhY2VlKSA8YWNlZUBjaXNjby5jb20+DQo+Pj53cm90 ZToNCj4+Pj4gSGkgS2F0aGxlZW4sDQo+Pj4+DQo+Pj4+IE9uIDgvMTkvMTUsIDI6MDAgUE0sICJL YXRobGVlbiBNb3JpYXJ0eSINCj4+Pj4gPGthdGhsZWVuLm1vcmlhcnR5LmlldGZAZ21haWwuY29t PiB3cm90ZToNCj4+Pj4NCj4+Pj4+SGkgQWxpYSwNCj4+Pj4+DQo+Pj4+PlRoYW5rcyBmb3IgdGhl IHdyaXRlIHVwLiAgSSBoYXZlIGEgY291cGxlIG9mIHF1ZXN0aW9ucyBpbi1saW5lLg0KPj4+Pj4N 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"draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , The IESG , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Aug 2015 19:31:25 -0000 SGkgS2F0aGxlZW4sIA0KDQpPbiA4LzE5LzE1LCAzOjI0IFBNLCAiS2F0aGxlZW4gTW9yaWFydHki DQo8a2F0aGxlZW4ubW9yaWFydHkuaWV0ZkBnbWFpbC5jb20+IHdyb3RlOg0KDQo+SGkgQWNlZSwN Cj4NCj5PbiBXZWQsIEF1ZyAxOSwgMjAxNSBhdCAzOjE2IFBNLCBBY2VlIExpbmRlbSAoYWNlZSkg PGFjZWVAY2lzY28uY29tPg0KPndyb3RlOg0KPj4NCj4+DQo+PiBPbiA4LzE5LzE1LCAyOjU4IFBN LCAiS2F0aGxlZW4gTW9yaWFydHkiDQo+PiA8a2F0aGxlZW4ubW9yaWFydHkuaWV0ZkBnbWFpbC5j b20+IHdyb3RlOg0KPj4NCj4+PkhpIEFjZWUsDQo+Pj4NCj4+Pk9uIFdlZCwgQXVnIDE5LCAyMDE1 IGF0IDI6NDQgUE0sIEFjZWUgTGluZGVtIChhY2VlKSA8YWNlZUBjaXNjby5jb20+DQo+Pj53cm90 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MIME-Version: 1.0 Archived-At: Cc: "ospf@ietf.org" , "draft-ietf-ospf-prefix-link-attr@ietf.org" , "draft-ietf-ospf-prefix-link-attr.shepherd@ietf.org" , "draft-ietf-ospf-prefix-link-attr.ad@ietf.org" , The IESG , "ospf-chairs@ietf.org" Subject: Re: [OSPF] Kathleen Moriarty's Discuss on draft-ietf-ospf-prefix-link-attr-10: (with DISCUSS) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Aug 2015 13:36:37 -0000 SGkgS2F0aGxlZW4sDQpUaGUgLTEzIHZlcnNpb24gaW5jbHVkZXMgdGhlIGNsYXJpZnlpbmcgdGV4 dC4NCg0KaHR0cDovL3d3dy5pZXRmLm9yZy9pZC9kcmFmdC1pZXRmLW9zcGYtcHJlZml4LWxpbmst YXR0ci0xMy50eHQNCg0KVGhhbmtzLA0KQWNlZQ0KDQpPbiA4LzE5LzE1LCAzOjM0IFBNLCAiS2F0 aGxlZW4gTW9yaWFydHkiDQo8a2F0aGxlZW4ubW9yaWFydHkuaWV0ZkBnbWFpbC5jb20+IHdyb3Rl Og0KDQo+SGkgQWNlZSwNCj4NCj5PbiBXZWQsIEF1ZyAxOSwgMjAxNSBhdCAzOjMxIFBNLCBBY2Vl 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AQHQ3CkOaPrAEkrA70mNrtacKnvTp54WsYQA Date: Fri, 21 Aug 2015 16:15:01 +0000 Message-ID: References: <558C6BC1.1060209@cisco.com> <55D748A8.7010108@cisco.com> In-Reply-To: <55D748A8.7010108@cisco.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.37.102.24] Content-Type: text/plain; charset="utf-8" Content-ID: <2A6582067D6B9C478FD396D64399F87D@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: OSPF WG List Subject: Re: [OSPF] Working Group Last Call for draft-ietf-ospf-rfc4970bis-00 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Aug 2015 16:15:04 -0000 SSBhbSBub3QgYXdhcmUgb2YgYW55IElQUi4NClRoYW5rcywNCkFjZWUgDQoNCk9uIDgvMjEvMTUs IDExOjUwIEFNLCAiQWJoYXkgUm95IChha3IpIiA8YWtyQGNpc2NvLmNvbT4gd3JvdGU6DQoNCj5D 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From nobody Mon Aug 24 10:16:50 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 157E21ACE3E; Mon, 24 Aug 2015 10:16:49 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -101.9 X-Spam-Level: X-Spam-Status: No, score=-101.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, USER_IN_WHITELIST=-100] autolearn=ham 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 1bxM2kwtyvAb; Mon, 24 Aug 2015 10:16:47 -0700 (PDT) Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id EB2D71ACE46; Mon, 24 Aug 2015 10:16:45 -0700 (PDT) Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: The IESG To: "IETF-Announce" X-Test-IDTracker: no X-IETF-IDTracker: 6.4.1 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20150824171645.9414.23534.idtracker@ietfa.amsl.com> Date: Mon, 24 Aug 2015 10:16:45 -0700 Archived-At: Cc: ospf mailing list , ospf chair , RFC Editor Subject: [OSPF] Protocol Action: 'OSPFv2 Prefix/Link Attribute Advertisement' to Proposed Standard (draft-ietf-ospf-prefix-link-attr-13.txt) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Aug 2015 17:16:49 -0000 The IESG has approved the following document: - 'OSPFv2 Prefix/Link Attribute Advertisement' (draft-ietf-ospf-prefix-link-attr-13.txt) as Proposed Standard This document is the product of the Open Shortest Path First IGP Working Group. The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah Brungard. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-ospf-prefix-link-attr/ Technical Summary OSPFv2 requires functional extension beyond what can readily be done with the fixed-format Link State Advertisements (LSAs) as described in RFC 2328.This document defines OSPF opaque LSAs based on Type- Length-Value (TLV) tuples that can be used to associate additional attributes with prefixes or links. Working Group Summary There has been much discusson about the protocol operations when the extended prefix TLVs appear multiple times in the OPAQUE LSA and different flooding scope of the extended Prefix LSA. As a result of the discussion, the document has been updated with details of receive side handling for all the cases along with recommended behaviours for send side to minimize disruptions in the network. Document Quality This document has been a WG document for a little under one year. It is stable, without changes to the technical solution for more than three months. Additionally, the document has been successfully implemented by interoperability tested by multiple vendors as indicated by the implementation status section. Personnel Shraddha Hegde is the Document Shepherd. Alia Atlas is the Responsible Area Director. RFC Editor Note Please remove the Section 5 on Implementation Status. From nobody Tue Aug 25 07:19:47 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 84CE21B3069 for ; Tue, 25 Aug 2015 07:19:46 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.15 X-Spam-Level: X-Spam-Status: No, score=0.15 tagged_above=-999 required=5 tests=[BAYES_40=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_PASS=-0.001] autolearn=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 Ou4AIWJ98jsH for ; Tue, 25 Aug 2015 07:19:45 -0700 (PDT) Received: from mail-qg0-x22b.google.com (mail-qg0-x22b.google.com [IPv6:2607:f8b0:400d:c04::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 A56661B3045 for ; Tue, 25 Aug 2015 07:19:45 -0700 (PDT) Received: by qgeb6 with SMTP id b6so106980818qge.3 for ; Tue, 25 Aug 2015 07:19:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=l63IDciMq3FqcBFVpyeVrvDodDMQoniitxvk2aAQwMM=; b=VuIbZr9drkAzw+UTB7lEmMMMKLDJLzNthyUASI78nsVhwJlOXOa8zwi6/UnUIgoZhB 9c7lFyAM3t2xM42osoNKj+I2E8OVaQa7KYfFJXgOWDxlltxiq1ENVPGAstscRJx/Os5f rIjkJDypKTh+RaxYosv8K/kZD51lTwmOEdUk3cChzWxKI/xoe0qQG7VNY/Ax8Aj1GI1q y0qOSQWLrmRc5RknDVhcm5WvcZ7SIfNU+kSP0o5vO8rx43mTl4rMnVMm8Kpiq1CK4NvP txcB3MCMgM5PKzmvn5N71p/N6K8B/CwSzqSogKzpMHpPE3XRJpAl8UwaepCRqfIYP9OP iKxg== MIME-Version: 1.0 X-Received: by 10.140.132.71 with SMTP id 68mr70208588qhe.64.1440512384834; Tue, 25 Aug 2015 07:19:44 -0700 (PDT) Received: by 10.140.40.106 with HTTP; Tue, 25 Aug 2015 07:19:44 -0700 (PDT) Date: Tue, 25 Aug 2015 19:49:44 +0530 Message-ID: From: Anil Raj To: OSPF WG List Content-Type: multipart/alternative; boundary=001a113510d4fe299d051e236c61 Archived-At: Subject: [OSPF] OSPF GR and BFD operability X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Aug 2015 14:19:46 -0000 --001a113510d4fe299d051e236c61 Content-Type: text/plain; charset=UTF-8 Hi, I need clarification on the behavior when BFD notifies remote inactivity for a OSPF session, when OSPF neighbor is undergoing Graceful restart? OSPF router in helper mode will ideally inactivate the restarting neighbor only after grace period, and if BFD notifies neighbor down to OSPF, should the adjacency be terminated? If not, will it cause a blackhole for the entire grace period if the neighbor is actually down? Appreciate if you can help here. Regards, Anil --001a113510d4fe299d051e236c61 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi,

I need clarification on the behavio= r when BFD notifies remote inactivity for a OSPF session, when OSPF neighbo= r is undergoing Graceful restart? OSPF router in helper mode will ideally i= nactivate the restarting neighbor only after grace period, and if BFD notif= ies neighbor down to OSPF, should the adjacency be terminated? If not, will= it cause a blackhole for the entire grace period if the neighbor is actual= ly down?

Appreciate if you can help here.

Regards,
Anil
--001a113510d4fe299d051e236c61-- From nobody Tue Aug 25 07:53:53 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9C1D61B2E67 for ; Tue, 25 Aug 2015 07:53:51 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.51 X-Spam-Level: X-Spam-Status: No, score=-14.51 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_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham 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 xc8uGsETXqlk for ; Tue, 25 Aug 2015 07:53:50 -0700 (PDT) Received: from rcdn-iport-1.cisco.com (rcdn-iport-1.cisco.com [173.37.86.72]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) 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HTML_MESSAGE=0.001, SPF_PASS=-0.001] autolearn=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 M3DoPfYdd6MA for ; Tue, 25 Aug 2015 08:36:33 -0700 (PDT) Received: from mail-qg0-x22d.google.com (mail-qg0-x22d.google.com [IPv6:2607:f8b0:400d:c04::22d]) (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 A651C1B3572 for ; Tue, 25 Aug 2015 08:36:33 -0700 (PDT) Received: by qgeg42 with SMTP id g42so109021052qge.1 for ; Tue, 25 Aug 2015 08:36:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=lkF7HfTnNQQkiVdqUrctNDJP74C09PX5awYIgWTGWvU=; b=MqtASIgE7xcX59ZJZvq0kjrwdraLFcpNPSQArQZ11CmC6j6eSyNijTINAwJLJfQIaA yBFrkNJ2NGT2RAZpApQYFgYfYIw1klWNXJRdFwsEVEwl+9RyalnYYmB4gqVeIaOyHbcG VE2gXD+wTyxxJK1O7aDJUbTL2kPK6UpcuGTu8FGPVX9c77ZPXaxl4nFSyOY3T/GcQow6 ZjU+7EJtIF9vsbkVkc6v+k0dYp7biBbC2IFLvktNsBnff69Xd1LgtncIolUz3Ux2ns4I f2KVyh0SRyFMbKE+3nwepZlYP4plslZuRgSoeNWUWHFYKAK0pHZ4xSYLnXGle4c2qB3Z vELQ== MIME-Version: 1.0 X-Received: by 10.141.23.84 with SMTP id z81mr70554409qhd.50.1440516992871; Tue, 25 Aug 2015 08:36:32 -0700 (PDT) Received: by 10.140.40.106 with HTTP; Tue, 25 Aug 2015 08:36:32 -0700 (PDT) In-Reply-To: References: Date: Tue, 25 Aug 2015 21:06:32 +0530 Message-ID: From: Anil Raj To: "Acee Lindem (acee)" Content-Type: multipart/alternative; boundary=001a114236d0a7353d051e247f26 Archived-At: Cc: OSPF WG List Subject: Re: [OSPF] OSPF GR and BFD operability X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Aug 2015 15:36:36 -0000 --001a114236d0a7353d051e247f26 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Thanks Acee for the details. My concern was also in regards that, in a BFD-less setup during helper-mode, OSPF hello packets from the neighbor are not honored at all and is not used as a heartbeat mechanism, and hence waits for the entire grace period before announcing the peer down. So any BFD implementation done on software (may be multi-hop peers if applicable), this may still cause BFD to cause remote inactivity notification, with data plane still intact. Regards, Anil On Tue, Aug 25, 2015 at 8:23 PM, Acee Lindem (acee) wrote: > Hi Anil, > > OSPF and OSPFv3 graceful restart pre-dated BFD so this wasn=E2=80=99t exp= licitly > covered. However, given that the intension is that the data plane is > preserved during restart, an implementation could interpret this as a > topology change and terminate helper mode as documented in section 3.2 of > RFC 3623. > Hope this helps, > Acee > > > > From: OSPF on behalf of Anil Raj < > anilraj85@gmail.com> > Date: Tuesday, August 25, 2015 at 10:19 AM > To: OSPF WG List > Subject: [OSPF] OSPF GR and BFD operability > > Hi, > > I need clarification on the behavior when BFD notifies remote inactivity > for a OSPF session, when OSPF neighbor is undergoing Graceful restart? OS= PF > router in helper mode will ideally inactivate the restarting neighbor onl= y > after grace period, and if BFD notifies neighbor down to OSPF, should the > adjacency be terminated? If not, will it cause a blackhole for the entire > grace period if the neighbor is actually down? > > Appreciate if you can help here. > > Regards, > Anil > > --001a114236d0a7353d051e247f26 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Thanks Acee for the details.
My concern was also in re= gards that, in a BFD-less setup during helper-mode, OSPF hello packets from= the neighbor are not honored at all and is not used as a heartbeat mechani= sm, and hence waits for the entire grace period before announcing the peer = down. So any BFD implementation done on software (may be multi-hop peers if= applicable), this may still cause BFD to cause remote inactivity notificat= ion, with data plane still intact.=C2=A0

Regards,<= /div>
Anil

On Tue, Aug 25, 2015 at 8:23 PM, Acee Lindem (acee) <acee@cisco.com<= /a>> wrote:
Hi Anil,=C2=A0

OSPF and OSPFv3 graceful restart pre-dated BFD so this wasn=E2=80=99t = explicitly covered. However, given that the intension is that the data plan= e is preserved during restart, an implementation could interpret this as a = topology change and terminate helper mode as documented in section 3.2 of RFC 3623.=C2=A0
Hope this helps,
Acee



From: OSPF <ospf-bounces@ietf.org> on beh= alf of Anil Raj <anilraj85@gmail.com>
Date: Tuesday, August 25, 2015 at 1= 0:19 AM
To: OSPF WG List <ospf@ietf.org>=
Subject: [OSPF] OSPF GR and BFD ope= rability

Hi,

I need clarification on the behavior when BFD notifies remote inactivi= ty for a OSPF session, when OSPF neighbor is undergoing Graceful restart? O= SPF router in helper mode will ideally inactivate the restarting neighbor o= nly after grace period, and if BFD notifies neighbor down to OSPF, should the adjacency be terminated? If not= , will it cause a blackhole for the entire grace period if the neighbor is = actually down?

Appreciate if you can help here.

Regards,
Anil

--001a114236d0a7353d051e247f26-- From nobody Tue Aug 25 08:51:04 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CF5E81B3565 for ; Tue, 25 Aug 2015 08:51:02 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.749 X-Spam-Level: X-Spam-Status: No, score=-1.749 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_PASS=-0.001] autolearn=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 PGsyTQM6RgiR for ; Tue, 25 Aug 2015 08:51:01 -0700 (PDT) Received: from mail-qk0-x233.google.com (mail-qk0-x233.google.com [IPv6:2607:f8b0:400d:c09::233]) (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 208B81B3562 for ; Tue, 25 Aug 2015 08:51:01 -0700 (PDT) Received: by qkda128 with SMTP id a128so53002438qkd.3 for ; Tue, 25 Aug 2015 08:51:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=l+cMMnW/nbf7NjsWvzUxDvCwbkg/5VGq2m0XwAKSChA=; b=EDX/W1z+9MOYwEFPZbAfqSGrNeG7eI261wsnSFIcymHju4zI/uBqSa6O6YX5K/4oqw jc7Ugc5zID9x/1Y5cbwOvHDxxhNnbE8q0eH/yybTJxcN0fMKr6aFKp+owqmLwar+v84S H9kFLloPQTSloZCUQsNpVaqgp5fVY8t7DF5b3Q1I/y+NlZf/g9jS52kKVnCyle5HMaFp jQqn6/j6Wa76RM4PN/dMCyrBvKC9YSDGjzxYOlpyEQHgfWK1jYS4RUBoB9tmAjt9dmhN iEXNyjQ1p0KXkc+RyiT0bxKzsZelT/uxbNo8RJ9JB/uGSHahdJdXAy3aPY47Ixm7E5iT 2CAA== MIME-Version: 1.0 X-Received: by 10.55.217.23 with SMTP id u23mr65483669qki.58.1440517860452; Tue, 25 Aug 2015 08:51:00 -0700 (PDT) Received: by 10.140.40.106 with HTTP; Tue, 25 Aug 2015 08:51:00 -0700 (PDT) In-Reply-To: References: Date: Tue, 25 Aug 2015 21:21:00 +0530 Message-ID: From: Anil Raj To: "Les Ginsberg (ginsberg)" Content-Type: multipart/alternative; boundary=001a1147a08a5d706f051e24b3c1 Archived-At: Cc: OSPF WG List Subject: Re: [OSPF] OSPF GR and BFD operability X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Aug 2015 15:51:03 -0000 --001a1147a08a5d706f051e24b3c1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Thanks Acess, Les. So ideally it is recommended to tear down OSPF adjacency and signal topology change, and thus honor BFD notification in this case. Regards, Anil On Tue, Aug 25, 2015 at 8:57 PM, Les Ginsberg (ginsberg) wrote: > https://www.rfc-editor.org/rfc/rfc5882.txt Section 4.3 is relevant here. > > > > Les > > > > > > *From:* OSPF [mailto:ospf-bounces@ietf.org] *On Behalf Of *Acee Lindem > (acee) > *Sent:* Tuesday, August 25, 2015 7:54 AM > *To:* Anil Raj; OSPF WG List > *Subject:* Re: [OSPF] OSPF GR and BFD operability > > > > Hi Anil, > > > > OSPF and OSPFv3 graceful restart pre-dated BFD so this wasn=E2=80=99t exp= licitly > covered. However, given that the intension is that the data plane is > preserved during restart, an implementation could interpret this as a > topology change and terminate helper mode as documented in section 3.2 of > RFC 3623. > > Hope this helps, > > Acee > > > > > > > > *From: *OSPF on behalf of Anil Raj < > anilraj85@gmail.com> > *Date: *Tuesday, August 25, 2015 at 10:19 AM > *To: *OSPF WG List > *Subject: *[OSPF] OSPF GR and BFD operability > > > > Hi, > > > > I need clarification on the behavior when BFD notifies remote inactivity > for a OSPF session, when OSPF neighbor is undergoing Graceful restart? OS= PF > router in helper mode will ideally inactivate the restarting neighbor onl= y > after grace period, and if BFD notifies neighbor down to OSPF, should the > adjacency be terminated? If not, will it cause a blackhole for the entire > grace period if the neighbor is actually down? > > > > Appreciate if you can help here. > > > > Regards, > > Anil > > --001a1147a08a5d706f051e24b3c1 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Thanks Acess, Les.

So ideally it is rec= ommended to tear down OSPF adjacency and signal topology change, and thus h= onor BFD notification in this case.

Regards,
=
Anil=C2=A0

On Tue, Aug 25, 2015 at 8:57 PM, Les Ginsberg (ginsberg) <ginsb= erg@cisco.com> wrote:

https://www= .rfc-editor.org/rfc/rfc5882.txt Section 4.3 is relevant here.=

=C2=A0

=C2=A0=C2=A0 Les

=C2=A0

=C2=A0

From: OSPF [ma= ilto:ospf-bounce= s@ietf.org] On Behalf Of Acee Lindem (acee)
Sent: Tuesday, August 25, 2015 7:54 AM
To: Anil Raj; OSPF WG List
Subject: Re: [OSPF] OSPF GR and BFD operability=

=C2=A0

Hi Anil,=C2=A0

=C2=A0=

OSPF and OSPFv3 graceful re= start pre-dated BFD so this wasn=E2=80=99t explicitly covered. However, giv= en that the intension is that the data plane is preserved during restart, an implementation could interpret this as a topology change and t= erminate helper mode as documented in section 3.2 of RFC 3623.=C2=A0=

Hope this helps,<= /u>

Acee

=C2=A0=

=C2=A0=

=C2=A0=

From: OSPF <ospf-bounces@ietf.org> on behalf of Ani= l Raj <anilraj8= 5@gmail.com>
Date: Tuesday, August 25, 2015 at 10:19 AM
To: OSPF WG List <ospf@ietf.org>
Subject: [OSPF] OSPF GR and BFD operability

=C2=A0=

Hi,

=C2=A0=

I need clarification on the= behavior when BFD notifies remote inactivity for a OSPF session, when OSPF= neighbor is undergoing Graceful restart? OSPF router in helper mode will ideally inactivate the restarting neighbor only after gra= ce period, and if BFD notifies neighbor down to OSPF, should the adjacency = be terminated? If not, will it cause a blackhole for the entire grace perio= d if the neighbor is actually down?

=C2=A0=

Appreciate if you can help = here.

=C2=A0=

Regards,

Anil


--001a1147a08a5d706f051e24b3c1-- From nobody Tue Aug 25 09:29:28 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A27F41A0393 for ; Tue, 25 Aug 2015 09:29:27 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.51 X-Spam-Level: X-Spam-Status: No, score=-14.51 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_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham 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 Jg6zsFq_u3Py for ; Tue, 25 Aug 2015 09:29:25 -0700 (PDT) Received: from rcdn-iport-4.cisco.com (rcdn-iport-4.cisco.com [173.37.86.75]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) 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16:29:24 +0000 Received: from XCH-ALN-001.cisco.com (xch-aln-001.cisco.com [173.36.7.11]) by rcdn-core-1.cisco.com (8.14.5/8.14.5) with ESMTP id t7PGTOuJ026385 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Tue, 25 Aug 2015 16:29:24 GMT Received: from xch-aln-001.cisco.com (173.36.7.11) by XCH-ALN-001.cisco.com (173.36.7.11) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Tue, 25 Aug 2015 11:29:23 -0500 Received: from xhc-aln-x11.cisco.com (173.36.12.85) by xch-aln-001.cisco.com (173.36.7.11) with Microsoft SMTP Server (TLS) id 15.0.1104.5 via Frontend Transport; Tue, 25 Aug 2015 11:29:23 -0500 Received: from xmb-aln-x02.cisco.com ([169.254.5.3]) by xhc-aln-x11.cisco.com ([173.36.12.85]) with mapi id 14.03.0248.002; Tue, 25 Aug 2015 11:29:23 -0500 From: "Les Ginsberg (ginsberg)" To: Anil Raj Thread-Topic: [OSPF] OSPF GR and BFD operability Thread-Index: AQHQ30EdcykVrLLZMEmoUK29+OkpU54dIP8A//+1cuCAAFqLAP//s3Iw Date: Tue, 25 Aug 2015 16:29:23 +0000 Message-ID: References: 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xch-aln-005.cisco.com (173.36.7.15) with Microsoft SMTP Server (TLS) id 15.0.1104.5 via Frontend Transport; Tue, 25 Aug 2015 11:41:50 -0500 Received: from xmb-aln-x06.cisco.com ([169.254.1.223]) by xhc-rcd-x14.cisco.com ([173.37.183.88]) with mapi id 14.03.0248.002; Tue, 25 Aug 2015 11:41:50 -0500 From: "Acee Lindem (acee)" To: "Les Ginsberg (ginsberg)" , Anil Raj Thread-Topic: [OSPF] OSPF GR and BFD operability Thread-Index: AQHQ30EdJhQjUSmLyUGmsy+tTypsap4c3f6AgABMkICAAAZuAIAACrqA///AeAA= Date: Tue, 25 Aug 2015 16:41:50 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.36.7.18] Content-Type: multipart/alternative; boundary="_000_D20212C12C975aceeciscocom_" MIME-Version: 1.0 Archived-At: Cc: OSPF WG List Subject: Re: [OSPF] OSPF GR and BFD operability X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: 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ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C98081A877F for ; Tue, 25 Aug 2015 20:07:58 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.749 X-Spam-Level: X-Spam-Status: No, score=-1.749 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_PASS=-0.001] autolearn=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 V_iei2BMDGFx for ; Tue, 25 Aug 2015 20:07:57 -0700 (PDT) Received: from mail-qg0-x229.google.com (mail-qg0-x229.google.com [IPv6:2607:f8b0:400d:c04::229]) (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 7FA3B1A8741 for ; Tue, 25 Aug 2015 20:07:56 -0700 (PDT) Received: by qgeb6 with SMTP id b6so118962623qge.3 for ; Tue, 25 Aug 2015 20:07:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=Fx6tzcVJ+3nXHE02owC4meh4TYQXzrVUR3pPpRCsTGI=; b=R22mjbixupsBwnaaobRoHiGaQDIxe2cnKBJB76gOFfVsFVOj100gnio0DlX/w+cT8V aDUvf+d2jDzc4Bhzrm3GZrT9NOqreQhL1Yqe4NTVRkqtUEckhV7dhj13FuzOBGJLNxDK QuYGPzfjDaYaH1hEv85Srlhy30X9+WHJQhoAyBNkX5Y/9PvgpQ/MTarDwMEYVA2Xgwfi 81eGIHRJZ6LCHw0TYY6QELWDEVX0J1WTr8IfSXO//zY0nxJ+Su9uNmNZZnECWAH4PGSo kEbKavOwFwF2ju19mRYGoAU6f0G3Tfjw2K4bfdLnp0uK3u+9ITivfsC/W7KLoKDucWnj 7w9A== MIME-Version: 1.0 X-Received: by 10.140.165.198 with SMTP id l189mr71871539qhl.85.1440558475815; Tue, 25 Aug 2015 20:07:55 -0700 (PDT) Received: by 10.140.40.106 with HTTP; Tue, 25 Aug 2015 20:07:55 -0700 (PDT) In-Reply-To: References: Date: Wed, 26 Aug 2015 08:37:55 +0530 Message-ID: From: Anil Raj To: "Acee Lindem (acee)" Content-Type: multipart/alternative; boundary=001a1134ee6e3aafd2051e2e28ae Archived-At: Cc: OSPF WG List Subject: Re: [OSPF] OSPF GR and BFD operability X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Aug 2015 03:07:59 -0000 --001a1134ee6e3aafd2051e2e28ae Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I got it. Thanks Les for the details and reference. Regards, Anil On Tue, Aug 25, 2015 at 10:11 PM, Acee Lindem (acee) wrote= : > I agree. Thanks Les for the reference to RFC 5882. > > Thanks, > Acee > > From: "Les Ginsberg (ginsberg)" > Date: Tuesday, August 25, 2015 at 12:29 PM > To: Anil Raj > Cc: Acee Lindem , OSPF WG List > Subject: RE: [OSPF] OSPF GR and BFD operability > > Anil =E2=80=93 > > > > IF BFD does NOT share fate w the Control plane then what you say is true. > > > > If BFD shares fate w the control plane then the behavior depends on the > neighbor knowing that a restart is in progress. If neighbor knows this th= en > the BFD down event can be ignored w minimal risk =E2=80=93 otherwise you = need to > treat it as a real failure. > > > > Les > > > > > > *From:* Anil Raj [mailto:anilraj85@gmail.com ] > *Sent:* Tuesday, August 25, 2015 8:51 AM > *To:* Les Ginsberg (ginsberg) > *Cc:* Acee Lindem (acee); OSPF WG List > *Subject:* Re: [OSPF] OSPF GR and BFD operability > > > > Thanks Acess, Les. > > > > So ideally it is recommended to tear down OSPF adjacency and signal > topology change, and thus honor BFD notification in this case. > > > > Regards, > > Anil > > > > On Tue, Aug 25, 2015 at 8:57 PM, Les Ginsberg (ginsberg) < > ginsberg@cisco.com> wrote: > > https://www.rfc-editor.org/rfc/rfc5882.txt Section 4.3 > is relevant > here. > > > > Les > > > > > > *From:* OSPF [mailto:ospf-bounces@ietf.org] *On Behalf Of *Acee Lindem > (acee) > *Sent:* Tuesday, August 25, 2015 7:54 AM > *To:* Anil Raj; OSPF WG List > *Subject:* Re: [OSPF] OSPF GR and BFD operability > > > > Hi Anil, > > > > OSPF and OSPFv3 graceful restart pre-dated BFD so this wasn=E2=80=99t exp= licitly > covered. However, given that the intension is that the data plane is > preserved during restart, an implementation could interpret this as a > topology change and terminate helper mode as documented in section 3.2 of > RFC 3623. > > Hope this helps, > > Acee > > > > > > > > *From: *OSPF on behalf of Anil Raj < > anilraj85@gmail.com> > *Date: *Tuesday, August 25, 2015 at 10:19 AM > *To: *OSPF WG List > *Subject: *[OSPF] OSPF GR and BFD operability > > > > Hi, > > > > I need clarification on the behavior when BFD notifies remote inactivity > for a OSPF session, when OSPF neighbor is undergoing Graceful restart? OS= PF > router in helper mode will ideally inactivate the restarting neighbor onl= y > after grace period, and if BFD notifies neighbor down to OSPF, should the > adjacency be terminated? If not, will it cause a blackhole for the entire > grace period if the neighbor is actually down? > > > > Appreciate if you can help here. > > > > Regards, > > Anil > > > > --001a1134ee6e3aafd2051e2e28ae Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I got it. Thanks Les for the details and reference.
Regards,
Anil
=
On Tue, Aug 25, 2015 at 10:11 PM, Acee Linde= m (acee) <acee@cisco.com> wrote:
I agree. Thanks Les for the reference to RFC 5882.=C2=A0

Thanks,
Acee=C2=A0

From: "Les Ginsberg (ginsberg)= " <ginsberg= @cisco.com>
Date: Tuesday, August 25, 2015 at 1= 2:29 PM
To: Anil Raj <anilraj85@gmail.com>
Cc: Acee Lindem <acee@cisco.com>, OSPF WG List &= lt;ospf@ietf.org>=
Subject: RE: [OSPF] OSPF GR and BFD= operability

Anil =E2=80=93

=C2=A0

IF BFD does NOT share fate w the Control pla= ne then what you say is true.

=C2=A0

If BFD shares fate w the control plane then = the behavior depends on the neighbor knowing that a restart is in progress.= If neighbor knows this then the BFD down event can be ignored w minimal risk =E2=80=93 otherwise you n= eed to treat it as a real failure.

=C2=A0

=C2=A0=C2=A0 Les

=C2=A0

=C2=A0

From: Anil Raj [mailto:anilraj85@gmail.com]
Sent: Tuesday, August 25, 2015 8:51 AM
To: Les Ginsberg (ginsberg)
Cc: Acee Lindem (acee); OSPF WG List
Subject: Re: [OSPF] OSPF GR and BFD operability=

=C2=A0

Thanks Acess, Les.

=C2=A0

So ideally it is recommended to tear down OSPF adjac= ency and signal topology change, and thus honor BFD notification in this ca= se.

=C2=A0

Regards,

Anil=C2=A0

=C2=A0

On Tue, Aug 25, 2015 at 8:57 PM, Les Ginsberg (ginsb= erg) <ginsberg@c= isco.com> wrote:

https://www.rfc-editor.org/rfc= /rfc5882.txt Section 4.3 is relevant here.

=C2=A0

=C2=A0=C2=A0 Les

=C2=A0

=C2=A0

From: OSPF [mailto:ospf-bounces@ietf.org] On Behalf Of Acee Lindem (acee)
Sent: Tuesday, August 25, 2015 7:54 AM
To: Anil Raj; OSPF WG List
Subject: Re: [OSPF] OSPF GR and BFD operability=

=C2=A0

Hi Anil,=C2=A0

=C2=A0

OSPF and OSPFv3 graceful restart pre-dated BFD so t= his wasn=E2=80=99t explicitly covered. However, given that the intension is that the data plane is preserved during restart, an = implementation could interpret this as a topology change and terminate help= er mode as documented in section 3.2 of RFC 3623.=C2=A0

Hope this helps,

Acee

=C2=A0

=C2=A0

=C2=A0

From: OSPF <ospf-bounces@ietf.org> on behalf of Anil Raj <anilraj85@gmail.com>
Date: Tuesday, August 25, 2015 at 10:19 AM
To: OSPF WG List <ospf@ietf.org>
Subject: [OSPF] OSPF GR and BFD operability

=C2=A0

Hi,

=C2=A0

I need clarification on the behavior when BFD notif= ies remote inactivity for a OSPF session, when OSPF neighbor is undergoing Graceful restart? OSPF router in helper mode w= ill ideally inactivate the restarting neighbor only after grace period, and= if BFD notifies neighbor down to OSPF, should the adjacency be terminated?= If not, will it cause a blackhole for the entire grace period if the neighbor is actually down?

=C2=A0

Appreciate if you can help here.

=C2=A0

Regards,

Anil

=C2=A0

--001a1134ee6e3aafd2051e2e28ae-- From nobody Wed Aug 26 21:38:27 2015 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CC5281B3A17 for ; Wed, 26 Aug 2015 21:38:25 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.902 X-Spam-Level: X-Spam-Status: No, score=-1.902 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham 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 VQfq3POWn-p5 for ; Wed, 26 Aug 2015 21:38:24 -0700 (PDT) Received: from na01-bn1-obe.outbound.protection.outlook.com (mail-bn1bon0730.outbound.protection.outlook.com [IPv6:2a01:111:f400:fc10::1:730]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS 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