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List:       sip-implementors
Subject:    Re: [Sip-implementors] Questions regarding multi-cast
From:       "Ranjit Avasarala" <ranjitka () email ! masconit ! com>
Date:       2002-05-29 6:32:48
Message-ID: 004c01c206d8$ff64e4a0$c101c0c0 () mas ! blr
[Download RAW message or body]

maddr is a SDP parameter. So it will be done by SDP.
No TTL cannot be greater than 1 for multicast

[RRR]
As a result of IESG review, there were concerns about the  multicast usage
of SIP. In particular, for the things we were
 using it for, it was felt that a limitation of scope to ttl=1  was needed.
As such, I have modified the transport chapter to
 reflect a SHOULD level usage of ttl=1.

Ranjit
----- Original Message -----
From: "Angshuman Dasgupta" <a18655@motorola.com>
To: <sip-implementors@cs.columbia.edu>
Sent: Wednesday, May 29, 2002 10:13 AM
Subject: [Sip-implementors] Questions regarding multi-cast


> Here are a few questions we don't have answers to...
> 1) Who (which layer) is supposed to populate the maddr header field?
> 2) Can TTL be greater than 1 for multicast? What behavior is expected if
>
> one were to receive a multicast message with TTL is not zero?
> 3) What are the applications of multicast?
>
> Would be glad if someone could shed some light.
>
> Thanks
> ADG
>
>
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> Sip-implementors@cs.columbia.edu
> http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors


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