Re: [ippm] Benjamin Kaduk's No Objection on draft-ietf-ippm-twamp-yang-11: (with COMMENT)

["MORTON, ALFRED C (AL)" <[e-mail]>]

Hi Ben,

Just looking at your first comment for now:
> 
> ----------------------------------------------------------------------
> COMMENT:
> ----------------------------------------------------------------------
> 
> Perhaps I am confused and/or misreading things, but the descriptions
> of the control-client and session-reflector include discussion of
> 'sid' session identifiers as if they were always used, but the mode
> bitmap includes a separate bit for negotiation of
> 'individual-session-control' for session identifier usage.  Is there
> some conflict between this mandatory/negotiable distinction, or are
> they actually talking about different things?
[acm] 

Yes, there is a small amount of confusion, easily 
rectified I think.

All test sessions are assigned Session IDs (SIDs).
Each SID is assigned during the session setup phase of operation.

All test sessions START and STOP with the those commands,
*unless* the individual-session-control feature has been negotiated:

   [RFC5938] ... describes an OPTIONAL feature for TWAMP.  [RFC5357] TWAMP
   (and OWAMP) start all previously requested and accepted test sessions
   at once.  This feature allows the Control-Client to control
   individual test sessions on the basis of their Session Identifier
   (SID).  This feature permits a short-duration TWAMP test to start
   (and/or stop) during a longer test.  This feature permits a specific
   diagnostic test to begin if intermediate results indicate that the
   test is warranted, for example.

Let us know if there is specific text you would like to modify,
to avoid any confusion...

thanks,
Al