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From: Roman Shpount <rshpount@turbobridge.com>
Date: Thu, 2 Mar 2017 17:14:07 -0500
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To: "Charles Eckel (eckelcu)" <eckelcu@cisco.com>
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Cc: "Tom Kristensen \(tomkrist\)" <tomkrist@cisco.com>, Tom Kristensen <tomkri@ifi.uio.no>, bfcpbis@ietf.org, Gonzalo Camarillo <Gonzalo.Camarillo@ericsson.com>, "Paul E. Jones" <paulej@packetizer.com>, Christer Holmberg <christer.holmberg@ericsson.com>, Mary Barnes <mary.ietf.barnes@gmail.com>
Subject: [bfcpbis] Updates to draft-ietf-bfcpbis-rfc4583bis required to enable ICE
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HI All,

Here is the first draft of changes proposed for this document:

1. In Section 3, we need to define an additional proto field value:
TCP/DTLS/BFCP, which is realized by running BFCP on top of DTLS as descibed
in this specification and running DTLS on top of TCP is realized using the
framing method defined in RFC4571, with DTLS packets being sent and
received instead of RTP/RTCP packets using the shim defined in RFC4571 so
that length field defined in RFC4571 precedes each DTLS message. All
sections of the document should be updated to include the TCP/DTLS/BFCP
transport.

2. References to RFC 5763 should be replaced with references to
draft-ietf-mmusic-dtls-sdp. Document should be updated to use procedures
from draft-ietf-mmusic-dtls-sdp including dtls-id.

3. References to RFC 4572 should be replaced with references to
draft-ietf-mmusic-4572-update. Document should be checked for compliance
with 4572 update.

4. Section 10.5.is redundant with draft-ietf-mmusic-dtls-sdp.

5. We should not be using SHA-1 fingerprints in examples, since they are
deprecated

6. The following section should be added which describes ICE support:

ICE Considerations

When BFCP is used with UDP based ICE candidates RFC5245 then the procedures
for UDP/TLS/BFCP are used.

When BFCP is used with TCP based ICE candidates RFC6544 then the procedures
for TCP/DTLS/BFCP are used.

In ICE environments, during the nomination process, end points go through
multiple ICE candidate pairs, until the most preferred candidate pair is
found. During the nomination process, data can be sent as soon as the first
working candidate pair is found, but the nomination process still continues
and selected candidate pairs can still change while data is sent.
Furthermore, if end points roam between networks, for instance when mobile
end point switches from mobile connection to WiFi, end points will initiate
an ICE restart, which will trigger a new nomination process between the new
set of candidates and likely result in the new nominated candidate pair.

Implementations MUST treat all ICE candidate pairs associated with an BFCP
session on top of a DTLS association as part of the same DTLS association.
Thus, there will only be one BFCP session setup and one DTLS handshake even
if there are multiple valid candidate pairs, and shifting from one
candidate pair to another, including switching between UDP to TCP candidate
pairs, will not impact the BFCP session or DTLS associations. If new
candidates are added, they will also be part of the same BFCP session and
DTLS associations. When transitioning between candidate pairs, different
candidate pairs can be currently active in different directions and
implementations MUST be ready to receive data on any of the candidates,
even if this means sending and receiving data using UDP/TLS/BFCP and
TCP/DTLS/BFCPat the same time in different directions.

In order to maximize the likelihood of interoperability between the end
points, all ICE enabled BFCP end points SHOULD implement support for
UDP/TLS/BFCP.

When an SDP offer or answer is sent with multiple ICE candidates during
initial connection negotiation or after ICE restart, UDP based candidates
SHOULD be included and default candidate SHOULD be chosen from one of those
UDP candidates. The proto value MUST match the transport protocol
associated with the default candidate. If UDP transport is used for the
default candidate, then 'UDP/TLS/BFCP' proto value MUST be used. If TCP
transport is used for the default candidate, then 'TCP/DTLS/BFCP' proto
value MUST be used. Note that under normal circumstances the proto value
for offers and answers sent during ICE nomination SHOULD be 'UDP/TLS/BFCP'.

When a subsequent SDP offer or answer is sent after ICE nomination is
complete and does not initiate ICE restart, it will contain only the
currently negotiated ICE candidate pair. In this case, the proto value MUST
match the transport protocol associated with the currently negotiated ICE
candidate pair. If UDP transport is used for the currently negotiated pair,
then 'UDP/TLS/BFCP' proto value MUST be used. If TCP transport is used for
the currently negotiated pair, then  'TCP/DTLS/BFCP' proto value MUST be
used. Please note that if an end point switches between TCP-based and
UDP-based candidates during the nomination process the end point is not
required to send an SDP offer for the sole purpose of keeping the proto
value of the
associated m- line in sync.

NOTE: The text in the paragraph above only applies when the usage of ICE
has been negotiated. If ICE is not used, the proto value MUST always
reflect the transport protocol used at any given time.

Regards,
_____________
Roman Shpount

--94eb2c03aefa77e2f30549c6bff1
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<div dir=3D"ltr">HI All,<div><br></div><div>Here is the first draft of chan=
ges proposed for this document:</div><div><br></div><div>1. In Section 3, w=
e need to define an additional proto field value: TCP/DTLS/BFCP, which is r=
ealized by running BFCP on top of=C2=A0DTLS as descibed in this specificati=
on and running DTLS on top of TCP is realized using the framing method defi=
ned in RFC4571, with DTLS packets being sent and received=C2=A0instead of R=
TP/RTCP packets using the shim defined in RFC4571=C2=A0so that length field=
 defined in RFC4571 precedes each DTLS message. All sections of the documen=
t should be updated to include the TCP/DTLS/BFCP transport.</div><div><br><=
/div><div>2. References to RFC 5763 should be replaced with references to d=
raft-ietf-mmusic-dtls-sdp. Document should be updated to use procedures fro=
m draft-ietf-mmusic-dtls-sdp including dtls-id.</div><div><br></div><div>3.=
 References to RFC 4572 should be replaced with references to draft-ietf-mm=
usic-4572-update. Document should be checked for compliance with 4572 updat=
e.</div><div><br></div><div>4. Section <a href=3D"http://10.5.is">10.5.is</=
a> redundant with draft-ietf-mmusic-dtls-sdp.</div><div><br></div><div>5. W=
e should not be using SHA-1 fingerprints in examples, since they are deprec=
ated</div><div><br></div><div>6. The following section should be added whic=
h describes ICE support:</div><div><br></div><div><div>ICE Considerations</=
div><div><br></div><div>When BFCP is used with UDP based ICE candidates RFC=
5245 then the procedures for UDP/TLS/BFCP are used.</div><div><br></div><di=
v>When BFCP is used with TCP based ICE candidates RFC6544 then the procedur=
es for TCP/DTLS/BFCP are used.</div><div><br></div><div>In ICE environments=
, during the nomination process, end points go through multiple ICE candida=
te pairs, until the most preferred candidate pair is found. During the nomi=
nation process, data can be sent as soon as the first working candidate pai=
r is found, but the nomination process still continues and selected candida=
te pairs can still change while data is sent. Furthermore, if end points ro=
am between networks, for instance when mobile end point switches from mobil=
e connection to WiFi, end points will initiate an ICE restart, which will t=
rigger a new nomination process between the new set of candidates and likel=
y result in the new nominated candidate pair.</div><div><br></div><div>Impl=
ementations MUST treat all ICE candidate pairs associated with an BFCP sess=
ion on top of a DTLS association as part of the same DTLS association. Thus=
, there will only be one BFCP session setup and one DTLS handshake even if =
there are multiple valid candidate pairs, and shifting from one candidate p=
air to another, including switching between UDP to TCP candidate pairs, wil=
l not impact the BFCP session or DTLS associations. If new candidates are a=
dded, they will also be part of the same BFCP session and DTLS associations=
. When transitioning between candidate pairs, different candidate pairs can=
 be currently active in different directions and implementations MUST be re=
ady to receive data on any of the candidates, even if this means sending an=
d receiving data using UDP/TLS/BFCP=C2=A0and TCP/DTLS/BFCPat the same time =
in different directions.</div><div><br></div><div>In order to maximize the =
likelihood of interoperability between the end points, all ICE enabled BFCP=
 end points SHOULD implement support for UDP/TLS/BFCP.</div><div><br></div>=
<div>When an SDP offer or answer is sent with multiple ICE candidates durin=
g initial connection negotiation or after ICE restart, UDP based candidates=
 SHOULD be included and default candidate SHOULD be chosen from one of thos=
e UDP candidates. The proto value MUST match the transport protocol associa=
ted with the default candidate. If UDP transport is used for the default ca=
ndidate, then &#39;UDP/TLS/BFCP&#39; proto value MUST be used. If TCP trans=
port is used for the default candidate, then &#39;TCP/DTLS/BFCP&#39; proto =
value MUST be used. Note that under normal circumstances the proto value fo=
r offers and answers sent during ICE nomination SHOULD be &#39;UDP/TLS/BFCP=
&#39;.</div><div><br></div><div>When a subsequent SDP offer or answer is se=
nt after ICE nomination is complete and does not initiate ICE restart, it w=
ill contain only the currently negotiated ICE candidate pair. In this case,=
 the proto value MUST match the transport protocol associated with the curr=
ently negotiated ICE candidate pair. If UDP transport is used for the curre=
ntly negotiated pair, then &#39;UDP/TLS/BFCP&#39; proto value MUST be used.=
 If TCP transport is used for the currently negotiated pair, then =C2=A0&#3=
9;TCP/DTLS/BFCP&#39; proto value MUST be used. Please note that if an end p=
oint switches between TCP-based and UDP-based candidates during the nominat=
ion process the end point is not required to send an SDP offer for the sole=
 purpose of keeping the proto value of the</div><div>associated m- line in =
sync.</div><div><br></div><div>NOTE: The text in the paragraph above only a=
pplies when the usage of ICE has been negotiated. If ICE is not used, the p=
roto value MUST always reflect the transport protocol used at any given tim=
e.</div><div><br></div><div>Regards,</div><div class=3D"gmail_extra"><div><=
div><div class=3D"gmail_signature">_____________<br>Roman Shpount</div></di=
v></div></div></div></div>

--94eb2c03aefa77e2f30549c6bff1--


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From: "Charles Eckel (eckelcu)" <eckelcu@cisco.com>
To: Roman Shpount <rshpount@turbobridge.com>
Thread-Topic: Updates to draft-ietf-bfcpbis-rfc4583bis required to enable ICE
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Subject: Re: [bfcpbis] Updates to draft-ietf-bfcpbis-rfc4583bis required to enable ICE
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--_000_52AB0C16BED7440283683FAC4B3B64BBciscocom_--


From nobody Thu Mar  2 15:50:02 2017
Return-Path: <rshpount@turbobridge.com>
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From: Roman Shpount <rshpount@turbobridge.com>
Date: Thu, 2 Mar 2017 18:49:58 -0500
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To: "Charles Eckel (eckelcu)" <eckelcu@cisco.com>
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Cc: "Tom Kristensen \(tomkrist\)" <tomkrist@cisco.com>, Tom Kristensen <tomkri@ifi.uio.no>, "bfcpbis@ietf.org" <bfcpbis@ietf.org>, Gonzalo Camarillo <Gonzalo.Camarillo@ericsson.com>, "Paul E. Jones" <paulej@packetizer.com>, Christer Holmberg <christer.holmberg@ericsson.com>, Mary Barnes <mary.ietf.barnes@gmail.com>
Subject: Re: [bfcpbis] Updates to draft-ietf-bfcpbis-rfc4583bis required to enable ICE
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Charles,

On Thu, Mar 2, 2017 at 6:29 PM, Charles Eckel (eckelcu) <eckelcu@cisco.com>
wrote:

> [cue] We define the proto field value UDP/TLS/BFCP in this draft for BFCP
> over DTLS. Would it not be more straightforward and consistent to define
> the new proto value as TCP/UDP/TLS/BFCP instead of TCP/DTLS/BFCP?
>
>
>
I am trying to keep proto names as close as possible to
draft-ietf-mmusic-dtls-sdp. I understand that there are already
implementations which use UDP/TLS/BFCP so we cannot change it to the
technically correct value which is UDP/DTLS/BFCP. After all, we are using
DTLS transport, which is different from TLS.

Since there are no implementations of TCP/DTLS/BFCP, we should use the
technically correct protocol string. There is no UDP layer in TCP/DTLS/BFCP
transport stack, since DTLS packets are passed directly to RFC4571 shim.
Because of this I think TCP/DTLS/BFCP value is accurate and appropriate.

Regards,
_____________
Roman Shpount

--94eb2c03aefa417de40549c81622
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<div dir=3D"ltr">Charles,<div><br></div><div class=3D"gmail_extra"><div cla=
ss=3D"gmail_quote">On Thu, Mar 2, 2017 at 6:29 PM, Charles Eckel (eckelcu) =
<span dir=3D"ltr">&lt;<a href=3D"mailto:eckelcu@cisco.com" target=3D"_blank=
">eckelcu@cisco.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quo=
te" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204=
);padding-left:1ex">







<div bgcolor=3D"white" lang=3D"EN-US">
<div class=3D"gmail-m_2842173139746511775WordSection1">
<p class=3D"MsoNormal">[cue] We define the proto field value UDP/TLS/BFCP i=
n this draft for BFCP over DTLS. Would it not be more straightforward and c=
onsistent to define the new proto value as TCP/UDP/TLS/BFCP instead of TCP/=
DTLS/BFCP?<br></p><div><div><p class=3D"MsoNormal"><u></u></p>
<p class=3D"MsoNormal"><br></p></div></div></div></div></blockquote><div><b=
r></div>I am trying to keep proto names as close as possible to draft-ietf-=
mmusic-dtls-sdp. I understand that there are already implementations which =
use UDP/TLS/BFCP so we cannot change it to the technically correct value wh=
ich is UDP/DTLS/BFCP. After all, we are using DTLS transport, which is diff=
erent from TLS.=C2=A0</div><div class=3D"gmail_quote"><br></div><div class=
=3D"gmail_quote">Since there are no implementations of TCP/DTLS/BFCP, we sh=
ould use the technically correct protocol string. There is no UDP layer in =
TCP/DTLS/BFCP transport stack, since DTLS packets are passed directly to RF=
C4571 shim. Because of this I think TCP/DTLS/BFCP value is accurate and app=
ropriate.</div><div class=3D"gmail_quote"><br></div><div class=3D"gmail_quo=
te">Regards,<br><div><div class=3D"gmail_signature">_____________<br>Roman =
Shpount</div></div><div>=C2=A0</div></div></div></div>

--94eb2c03aefa417de40549c81622--


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From: Roman Shpount <rshpount@turbobridge.com>
Date: Thu, 2 Mar 2017 22:49:01 -0500
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Subject: Re: [bfcpbis] Updates to draft-ietf-bfcpbis-rfc4583bis required to enable ICE
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I would like to make to additional corrections to my proposed text.

1. The text for seciton 3 should be update to mention that BFCP version for
unreliable transports should be used in case of TCP/DTLS/BFCP:

TCP/DTLS/BFCP, which is realized by running BFCP *for unreliable transports*
on top of DTLS as described in this specification and running DTLS on top
of TCP is realized using the framing method defined in RFC4571, with DTLS
packets being sent and received instead of RTP/RTCP packets using the shim
defined in RFC4571 so that length field defined in RFC4571 precedes each
DTLS message.


2. In ICE considerations, I would like to add:

Using ICE with protocols other then UDP/TLS/BFCP and TCP/DTLS/BFCP is
outside of scope for this specification.


Thank You,

_____________
Roman Shpount

On Thu, Mar 2, 2017 at 6:49 PM, Roman Shpount <rshpount@turbobridge.com>
wrote:

> Charles,
>
> On Thu, Mar 2, 2017 at 6:29 PM, Charles Eckel (eckelcu) <eckelcu@cisco.com
> > wrote:
>
>> [cue] We define the proto field value UDP/TLS/BFCP in this draft for BFCP
>> over DTLS. Would it not be more straightforward and consistent to define
>> the new proto value as TCP/UDP/TLS/BFCP instead of TCP/DTLS/BFCP?
>>
>>
>>
> I am trying to keep proto names as close as possible to
> draft-ietf-mmusic-dtls-sdp. I understand that there are already
> implementations which use UDP/TLS/BFCP so we cannot change it to the
> technically correct value which is UDP/DTLS/BFCP. After all, we are using
> DTLS transport, which is different from TLS.
>
> Since there are no implementations of TCP/DTLS/BFCP, we should use the
> technically correct protocol string. There is no UDP layer in TCP/DTLS/BFCP
> transport stack, since DTLS packets are passed directly to RFC4571 shim.
> Because of this I think TCP/DTLS/BFCP value is accurate and appropriate.
>
> Regards,
> _____________
> Roman Shpount
>
>

--f403043608342775dc0549cb6d30
Content-Type: text/html; charset=UTF-8
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<div dir=3D"ltr">I would like to make to additional corrections to my propo=
sed text.<div><br></div><div>1. The text for seciton 3 should be update to =
mention that BFCP version for unreliable transports should be used in case =
of TCP/DTLS/BFCP:</div><div><br></div><blockquote style=3D"margin:0 0 0 40p=
x;border:none;padding:0px"><div><font color=3D"#000000"><span style=3D"font=
-size:12.8px">TCP/DTLS/BFCP, which is realized by running BFCP <b>for unrel=
iable transports</b> on top of=C2=A0DTLS as described=C2=A0in this specific=
ation and running DTLS on top of TCP is realized using the framing method d=
efined in RFC4571, with DTLS packets being sent and received=C2=A0instead o=
f RTP/RTCP packets using the shim defined in RFC4571=C2=A0so that length fi=
eld defined in RFC4571 precedes each DTLS message.=C2=A0</span></font></div=
></blockquote><div><font color=3D"#000000"><span style=3D"font-size:12.8px"=
><br></span></font></div><div><font color=3D"#000000"><span style=3D"font-s=
ize:12.8px">2. In ICE considerations, I would like to add:</span></font></d=
iv><div><font color=3D"#000000"><span style=3D"font-size:12.8px"><br></span=
></font></div><blockquote style=3D"margin:0 0 0 40px;border:none;padding:0p=
x"><div><font color=3D"#000000"><span style=3D"font-size:12.8px">Using ICE =
with protocols other then=C2=A0</span></font><span style=3D"color:rgb(0,0,0=
);font-size:12.8px">UDP/TLS/BFCP and=C2=A0</span><span style=3D"color:rgb(0=
,0,0);font-size:12.8px">TCP/DTLS/BFCP is outside of scope for this specific=
ation.</span></div></blockquote><div><span style=3D"color:rgb(0,0,0);font-s=
ize:12.8px"><br></span></div><div><span style=3D"color:rgb(0,0,0);font-size=
:12.8px">Thank You,</span></div></div><div class=3D"gmail_extra"><br clear=
=3D"all"><div><div class=3D"gmail_signature" data-smartmail=3D"gmail_signat=
ure">_____________<br>Roman Shpount</div></div>
<br><div class=3D"gmail_quote">On Thu, Mar 2, 2017 at 6:49 PM, Roman Shpoun=
t <span dir=3D"ltr">&lt;<a href=3D"mailto:rshpount@turbobridge.com" target=
=3D"_blank">rshpount@turbobridge.com</a>&gt;</span> wrote:<br><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;=
padding-left:1ex"><div dir=3D"ltr">Charles,<div><br></div><div class=3D"gma=
il_extra"><div class=3D"gmail_quote"><span class=3D"">On Thu, Mar 2, 2017 a=
t 6:29 PM, Charles Eckel (eckelcu) <span dir=3D"ltr">&lt;<a href=3D"mailto:=
eckelcu@cisco.com" target=3D"_blank">eckelcu@cisco.com</a>&gt;</span> wrote=
:<br><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;bo=
rder-left:1px solid rgb(204,204,204);padding-left:1ex">







<div bgcolor=3D"white" lang=3D"EN-US">
<div class=3D"m_-717218139166605087gmail-m_2842173139746511775WordSection1"=
>
<p class=3D"MsoNormal">[cue] We define the proto field value UDP/TLS/BFCP i=
n this draft for BFCP over DTLS. Would it not be more straightforward and c=
onsistent to define the new proto value as TCP/UDP/TLS/BFCP instead of TCP/=
DTLS/BFCP?<br></p><div><div><p class=3D"MsoNormal"><u></u></p>
<p class=3D"MsoNormal"><br></p></div></div></div></div></blockquote><div><b=
r></div></span>I am trying to keep proto names as close as possible to draf=
t-ietf-mmusic-dtls-sdp. I understand that there are already implementations=
 which use UDP/TLS/BFCP so we cannot change it to the technically correct v=
alue which is UDP/DTLS/BFCP. After all, we are using DTLS transport, which =
is different from TLS.=C2=A0</div><div class=3D"gmail_quote"><br></div><div=
 class=3D"gmail_quote">Since there are no implementations of TCP/DTLS/BFCP,=
 we should use the technically correct protocol string. There is no UDP lay=
er in TCP/DTLS/BFCP transport stack, since DTLS packets are passed directly=
 to RFC4571 shim. Because of this I think TCP/DTLS/BFCP value is accurate a=
nd appropriate.</div><div class=3D"gmail_quote"><br></div><div class=3D"gma=
il_quote">Regards,<br><div><div class=3D"m_-717218139166605087gmail_signatu=
re">_____________<span class=3D"HOEnZb"><font color=3D"#888888"><br>Roman S=
hpount</font></span></div></div><div>=C2=A0</div></div></div></div>
</blockquote></div><br></div>

--f403043608342775dc0549cb6d30--


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From: "Charles Eckel (eckelcu)" <eckelcu@cisco.com>
To: Roman Shpount <rshpount@turbobridge.com>
Thread-Topic: Updates to draft-ietf-bfcpbis-rfc4583bis required to enable ICE
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Subject: Re: [bfcpbis] Updates to draft-ietf-bfcpbis-rfc4583bis required to enable ICE
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From: "Charles Eckel (eckelcu)" <eckelcu@cisco.com>
To: Roman Shpount <rshpount@turbobridge.com>
Thread-Topic: Updates to draft-ietf-bfcpbis-rfc4583bis required to enable ICE
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Date: Fri, 3 Mar 2017 15:18:49 +0000
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Cc: "Tom Kristensen \(tomkrist\)" <tomkrist@cisco.com>, Tom Kristensen <tomkri@ifi.uio.no>, "bfcpbis@ietf.org" <bfcpbis@ietf.org>, Gonzalo Camarillo <Gonzalo.Camarillo@ericsson.com>, "Paul E. Jones" <paulej@packetizer.com>, Christer Holmberg <christer.holmberg@ericsson.com>, Mary Barnes <mary.ietf.barnes@gmail.com>
Subject: Re: [bfcpbis] Updates to draft-ietf-bfcpbis-rfc4583bis required to enable ICE
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From: "Charles Eckel (eckelcu)" <eckelcu@cisco.com>
To: Roman Shpount <rshpount@turbobridge.com>
Thread-Topic: Updates to draft-ietf-bfcpbis-rfc4583bis required to enable ICE
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Date: Fri, 10 Mar 2017 02:12:14 +0000
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Cc: "Tom Kristensen \(tomkrist\)" <tomkrist@cisco.com>, Tom Kristensen <tomkri@ifi.uio.no>, "bfcpbis@ietf.org" <bfcpbis@ietf.org>, Gonzalo Camarillo <Gonzalo.Camarillo@ericsson.com>, "Paul E. Jones" <paulej@packetizer.com>, Christer Holmberg <christer.holmberg@ericsson.com>, Mary Barnes <mary.ietf.barnes@gmail.com>
Subject: Re: [bfcpbis] Updates to draft-ietf-bfcpbis-rfc4583bis required to enable ICE
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From: "Charles Eckel (eckelcu)" <eckelcu@cisco.com>
To: Roman Shpount <rshpount@turbobridge.com>
CC: Gonzalo Camarillo <Gonzalo.Camarillo@ericsson.com>, "Tom Kristensen (tomkrist)" <tomkrist@cisco.com>, Christer Holmberg <christer.holmberg@ericsson.com>, Tom Kristensen <tomkri@ifi.uio.no>, "Mary Barnes" <mary.ietf.barnes@gmail.com>, "Paul E. Jones" <paulej@packetizer.com>, "bfcpbis@ietf.org" <bfcpbis@ietf.org>
Thread-Topic: Updates to draft-ietf-bfcpbis-rfc4583bis required to enable ICE
Thread-Index: AQHSk6JSUjB4HtjJ8UWHVVBUVasJT6GCEOkAgACLzQCAAELKgIAAOqaAgBywnYA=
Date: Tue, 21 Mar 2017 13:26:20 +0000
Message-ID: <01D451D5-1612-4350-A46D-D027704E386B@cisco.com>
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Subject: Re: [bfcpbis] Updates to draft-ietf-bfcpbis-rfc4583bis required to enable ICE
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--_000_01D451D516124350A46DD027704E386Bciscocom_--


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Subject: [bfcpbis] RFC 8124 on The Session Description Protocol (SDP) WebSocket Connection URI Attribute
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A new Request for Comments is now available in online RFC libraries.

        
        RFC 8124

        Title:      The Session Description Protocol (SDP) 
                    WebSocket Connection URI Attribute 
        Author:     R. Ravindranath, 
                    G. Salgueiro
        Status:     Standards Track
        Stream:     IETF
        Date:       March 2017
        Mailbox:    rmohanr@cisco.com, 
                    gsalguei@cisco.com
        Pages:      12
        Characters: 24562
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-bfcpbis-sdp-ws-uri-09.txt

        URL:        https://www.rfc-editor.org/info/rfc8124

        DOI:        10.17487/RFC8124

The WebSocket protocol enables bidirectional real-time communication
between clients and servers in web-based applications.  This document
specifies extensions to Session Description Protocol (SDP) for
application protocols using WebSocket as a transport.

This document is a product of the Binary Floor Control Protocol Bis Working Group of the IETF.

This is now a Proposed Standard.

STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the 
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