Subject: [PWE3] [Fwd: [mpls] Fwd: Working group last call: draft-ietf-avt-hc-over-mpls-protocol-05.txt]

From: Stewart Bryant <[email-masked]>
Date: Mon, 08 May 2006 08:21:36 +0100

Please can I have a volunteer to formally review on behalf
of PWE3?

Thanks

Stewart

-------- Original Message --------
Subject: [mpls] Fwd: Working group last call: 
draft-ietf-avt-hc-over-mpls-protocol-05.txt
Date: Thu, 4 May 2006 17:10:14 +0100
From: Colin Perkins <[email-masked]>
Reply-To: IETF AVT WG <[email-masked]>
To: [email-masked], [email-masked], [email-masked]
References: <[email-masked]>

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 <[email-masked]> mailing list.

Thanks,
Colin (AVT co-chair)

Begin forwarded message:
> From: Colin Perkins <[email-masked]>
> Date: 4 May 2006 17:06:19 BDT
> To: IETF AVT WG <[email-masked]>
> 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 [email-masked] 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, [email-masked] 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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