Re: [secdir] SecDir review of draft-ietf-ippm-twamp-session-cntrl-04

Al Morton <acmorton@att.com> Tue, 16 March 2010 12:24 UTC

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Date: Tue, 16 Mar 2010 08:22:36 -0400
To: Tina TSOU <tena@huawei.com>, secdir@ietf.org, draft-ietf-ippm-twamp-session-cntrl@tools.ietf.org, iesg@ietf.org
From: Al Morton <acmorton@att.com>
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Subject: Re: [secdir] SecDir review of draft-ietf-ippm-twamp-session-cntrl-04
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Thanks for your comments, Tina.

At 10:26 PM 3/15/2010, Tina TSOU wrote:
>In paragraph 3 of section 4.2, given that there is no change to the 
>TWAMP-test packet format, I assume we use the exact TWAMP-test 
>packet format as defined RFC5357, so that the SID is not carried in 
>the test packets. My question is that how the reflector just whether 
>a TWAMP-test packet belongs to the same session/SID or not. Since 
>per definition the testing message does not include SID, how to 
>differentiate the testing message of different testing sessions 
>after multiple testing started?
The Request-TW-Session command includes sender address + port
and receiver address + port, and this is usually sufficient.
Al