RE: [AVT] Re: Clearmode definition.

Yaakov,
One of the cases you mention include an RTP encapsulation of Nx64. Unless 
you have already done so, I recommend you register a MIME for it and allow 
its session-by-session negotiation using SDP, H.245 or other means. My 
guess from having read the PWE3 drafts in the past is that you are limiting 
the application to a provisioned RTP Nx64 session. While that is adequate 
in some applications, others will require/prefer the signaled establishment 
of Nx64 sessions.

Best regards,

Rajesh

At 05:13 PM 3/21/2004 +0200, Yaakov Stein wrote:
>
> > --> Rajesh Kumar <rkumar@cisco.com> writes:
> > > Are there plans to address N x 64 clear mode (N > 1) in
> > > draft-ietf-avt-rtp-clearmode-04.txt ?
> > >
> > > One method might be to have N as a MIME parameter.
> > >
> > > I recommend that we do.
> >
> > No. This is explicitly out of scope of AVT, and will be
> > addressed in the PWE3 working group.
>
>N*DS0 (i.e. N 64Kbps timeslots) with or without CAS
>is defined in the PWE3 TDM requirements draft as a structured TDM
>service.
>
>Right now in PWE we have three TDM drafts:
>
>1) The standards track one is SAToP (Structure Agnostic TDM over
>Packet),
>but this only handles full T1, E1, E3 or T3 trunks
>(whether structured or not). Thus this doesn't address N*64.
>
>2) CESoPSN - candidiate informational RFC
>This draft can handle N*DS0 by encapsulating one or more frames or N
>timeslots
>per packet, with or without RTP.
>
>3) TDMoIP - candidate informational RFC
>This draft can handle N*DS0 by using AAL1 which appends
>pointers to identify the first timeslot.
>If the 64K channels are carrying HDLC data, there is a mode
>which suppresses idle flags.
>
>As you can see, the treatment of N*DS0 is only in the informational
>drafts,
>not in the standards track one.
>
>The current suggestion for communicating N is via the PWE control
>protocol,
>where there is a parameter called CEP/TDM bit rate.
>
>Y(J)S

_______________________________________________
Audio/Video Transport Working Group
avt@ietf.org
https://www1.ietf.org/mailman/listinfo/avt