Re: [ippm] WGLC for draft-ietf-ippm-twamp-06.txt

["Murtaza Chiba (mchiba)" <[e-mail]>]

Another clarification question.

For Test packets the draft is not clear on the order of encryption and
authentication.   One can assume that the intent was to first encrypt
and then authenticate the fields which is the reverse of Control
packets.   It would be nice to see clarification text in the section
4.2.1 of TWAMP and section 4.1.2 of OWAMP.

-Murtaza

-----Original Message-----
From: [e-mail] [mailto:[e-mail]] On Behalf Of
Murtaza Chiba (mchiba)
Sent: Tuesday, March 25, 2008 1:10 PM
To: Henk Uijterwaal
Cc: IETF IPPM WG
Subject: Re: [ippm] WGLC for draft-ietf-ippm-twamp-06.txt



Some more questions on TWAMP draft.

Q1) Section 3.8 Stop Sessions mentions that command can only be sent by
the Session-Sender.   I believe the authors meant Control-Client as the
Session-Sender does not exchange a control command.

Q2) In the same section it mentions that NO session description record
can be sent, however, it also mentions that the Next SeqNo and Number of
Skip Ranges MUST be set to 0 and those are part of the session
description record!   I am assuming the authors ONLY meant to exclude
the no. Skip Ranges record.

Q3) Is it possible to add a SID to a Start-Sessions message?   That
would help limit the meaning of Active to be per SID allowing for
different SIDs to be started and stopped on demand.   Sometimes one may
want to start a Test Stream in response to an observed network
behaviour.   

Q4) If the above is acceptable then I propose adding a
Control-Command-type field to all response messages and hence the Accept
field should be the second field.  It also entails adding a SID in the
Requests and Responses.

-Murtaza

-----Original Message-----
From: [e-mail] [mailto:[e-mail]] On Behalf Of
Henk Uijterwaal
Sent: Monday, March 17, 2008 8:12 AM
To: Henk Uijterwaal
Cc: IETF IPPM WG
Subject: Re: [ippm] WGLC for draft-ietf-ippm-twamp-06.txt

IPPM Group,

> This is a WGLC for the draft: draft-ietf-ippm-twamp-06.txt
> 
> The draft has been discussed extensively in this group and appears to 
> to be stable by now.  We like to start a WGLC in order to move it
forward.
> Please raise any remaining issues by Friday, March 14, 9:00 UTC.
> 
> An URL for the draft is:
> 
>   http://www.ietf.org/internet-drafts/draft-ietf-ippm-twamp-06.txt

This concludes the WGLC for this draft.  Two issues were raised on the
list.  We'll ask the authors to respond to those on the list and to
include fixes in the draft.  After that we'll move the document forward.

Matt & Henk


--
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Henk Uijterwaal                           Email:
henk.uijterwaal(at)ripe.net
RIPE Network Coordination Centre
http://www.amsterdamned.org/~henk
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