Re: [tcmtf] Improvements in the TCM-TF charter draft v8

FERNANDO PASCUAL BLANCO <fpb@tid.es> Thu, 21 November 2013 11:56 UTC

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Date: Thu, 21 Nov 2013 11:56:21 +0000
From: FERNANDO PASCUAL BLANCO <fpb@tid.es>
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To: Marie-Jose Montpetit <marie@mjmontpetit.com>
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Thread-topic: [tcmtf] Improvements in the TCM-TF charter draft v8
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Cc: "tcmtf@ietf.org" <tcmtf@ietf.org>, "tsv-area@ietf.org" <tsv-area@ietf.org>, Martin Stiemerling <mls.ietf@googlemail.com>, "Eggert, Lars" <lars@netapp.com>, "jsaldana@unizar.es" <jsaldana@unizar.es>
Subject: Re: [tcmtf] Improvements in the TCM-TF charter draft v8
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Hi Marie,

I think transport accelerators are more focused in optimizing single data flows (compression and maybe tunneling). The main difference here would be the multiplexing of several data flows of different users. Please, if I am misunderstand you, provide more information about any other transport accelerator.

Un saludo,
Fernando

Fernando Pascual Blanco
Network Automation and Dynamization | Telefonica Global Resources
C/ Don Ramón de la Cruz 82-82, 28006, Madrid, España
fpb@tid.es<mailto:jessica.iglesiascarrera@telefonica.com> |F +34 91 312 8779  |  M +34 682 005 168

On 20/11/2013, at 21:32, Marie-Jose Montpetit <marie@mjmontpetit.com<mailto:marie@mjmontpetit.com>> wrote:

If there is a discussion about charter I would like to see how this is different from any other 'transport accelerators' especially if the use cases now include VoIP, wireless and satellite links not just real time gaming or video streaming.

/mjm

Marie-José Montpetit
mariejo@mit.edu<mailto:mariejo@mit.edu>

On Nov 20, 2013, at 11:19, "Eggert, Lars" <lars@netapp.com>; wrote:

Hi,

On 2013-11-20, at 10:24, Jose Saldana <jsaldana@unizar.es>; wrote:
But if you want to use it in more than a single hop, ROHC has to be
tunneled, and you lose the savings achieved by compression. So the idea is
that a number of packets (multiplexed) share the tunnel overhead.

several of the scenarios you describe for TCM-TF seem to be fully addressed by ROHC, i.e., do not seem to have multiple L3 hops that require creation of a tunnel.

It would be good to explicitly limit yourself to describing scenarios that do have that requirement.

Lars
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