Re: [Rtg-dt-encap-considerations] Updated draft

Albert Tian <albert.tian@ericsson.com> Sat, 07 March 2015 01:15 UTC

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From: Albert Tian <albert.tian@ericsson.com>
To: Erik Nordmark <nordmark@sonic.net>, "rtg-dt-encap-considerations@ietf.org" <Rtg-dt-encap-considerations@ietf.org>
Thread-Topic: [Rtg-dt-encap-considerations] Updated draft
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Date: Sat, 07 Mar 2015 01:15:25 +0000
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Subject: Re: [Rtg-dt-encap-considerations] Updated draft
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I just replied in the separate thread.

I copied them here again for the team to review too.

The first two bullets in the hardware friendly section:

o  Keep the encap header small. Switches and routers usually only read the
first small number of bytes into the fast memory for quick processing and
easy manipulation. The bulk of the packets are usually stored in slow
memory. A big encap header may not fit and additional read from the slow
memory will hurt the overall performance and throughput.

   o  Putting important information at the beginning of the
      encapsulation header. The reasoning is similar as explained in the
previous point. If important information are
      located at the beginning of the encapsulation header, the packet
      may be processed with smaller number of bytes to be read into the
fast memory and improve performance.



Thanks,
Albert





On 3/6/15, 5:05 PM, "Erik Nordmark" <nordmark@sonic.net> wrote:

>Please check your address information - I've pulled it from other I-Ds.
>
>I'm also waiting for some text from Albert and Tian. Then I'll submit.
>
>    Erik
>