The MPLS WG Archive

[Magnus Westerlund <magnus.westerlund@ericsson.com>]

Hi,

We would really appreciate if we got some review from you in the MPLS WG 
that this is fit to publish. So please review the document and provide 
comments, or simply an endorsement.

Thanks

Magnus

Colin Perkins wrote:
> Folks,
> 
> The following working group last call has just been issued in AVT, but 
> overlaps with the MPLS, ROHC, and PWE3 working groups.  We would be 
> grateful for review from those working groups: please send any comments 
> on the draft to the <avt@ietf.org> mailing list.
> 
> Thanks,
> Colin (AVT co-chair)
> 
> 
> 
> 
> Begin forwarded message:
>> From: Colin Perkins <csp@csperkins.org>
>> Date: 4 May 2006 17:06:19 BDT
>> To: IETF AVT WG <avt@ietf.org>
>> Subject: Working group last call: 
>> draft-ietf-avt-hc-over-mpls-protocol-05.txt
>>
>> This is to announce a working group last call on the Protocol 
>> Extensions for Header Compression over MPLS 
>> <draft-ietf-avt-hc-over-mpls-protocol-05.txt>. Please send any final 
>> comments on this draft to the avt@ietf.org mailing list by 22nd May 
>> 2006. If no issues are raised by that time, we will request the IESG 
>> consider this for publication as a proposed standard RFC.
>>
>> Colin
>>
>>
>>
>> On 3 May 2006, at 20:50, Internet-Drafts@ietf.org wrote:
>>> A New Internet-Draft is available from the on-line Internet-Drafts 
>>> directories.
>>> This draft is a work item of the Audio/Video Transport Working Group 
>>> of the IETF.
>>>
>>>     Title        : Protocol Extensions for Header Compression over MPLS
>>>     Author(s)    : J. Ash, et al.
>>>     Filename    : draft-ietf-avt-hc-over-mpls-protocol-05.txt
>>>     Pages        : 30
>>>     Date        : 2006-5-3
>>>     
>>> VoIP typically uses the encapsulation voice/RTP/UDP/IP. When MPLS
>>> labels are added, this becomes voice/RTP/UDP/IP/MPLS-labels. For an
>>> MPLS VPN, the packet header is typically 48 bytes, while the voice
>>> payload is often no more than 30 bytes, for example. Header
>>> compression can significantly reduce the overhead through various
>>> compression mechanisms.  MPLS is used to route header-compressed (HC)
>>> packets over an MPLS LSP without compression/decompression cycles at
>>> each router.  Such an HC over MPLS capability increases the bandwidth
>>> efficiency as well as processing scalability of the maximum number of
>>> simultaneous compressed flows that use HC at each router.  MPLS
>>> pseudowires are used to transport the HC context and other control
>>> messages between the ingress and egress MPLS label switched router
>>> (LSR).  Standard HC methods (e.g., ECRTP, ROHC, etc.) are re-used to
>>> determine the context.  Each HC scheme operates over a single
>>> pseudowire instance very much like it would over a single
>>> point-to-point link.
>>>
>>> A URL for this Internet-Draft is:
>>> http://www.ietf.org/internet-drafts/draft-ietf-avt-hc-over-mpls-protocol-05.txt 
>>>
> 
> 
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> 


-- 

Magnus Westerlund

Multimedia Technologies, Ericsson Research EAB/TVA/A
----------------------------------------------------------------------
Ericsson AB                | Phone +46 8 4048287
Torshamsgatan 23           | Fax   +46 8 7575550
S-164 80 Stockholm, Sweden | mailto: magnus.westerlund@ericsson.com

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