Subject: [SAM] Fwd: extension mechanism for P2PP

From: "John Buford" <[email-masked]>
Date: Thu, 13 Mar 2008 14:35:51 -0400

Posted to the P2P-SIP WG mail list.

---------- Forwarded message ----------
From: John Buford <[email-masked]>
Date: Thu, Mar 13, 2008 at 2:03 PM
Subject: extension mechanism for P2PP
To: [email-masked]
Cc: John Buford <[email-masked]>

The Scalable Adaptive Multicast RG is working on hybrid application layer
multicast protocols.  We would like to use P2PP as a substrate.
To support our experimentation without interfering with other implementations,
we propose that P2PP (or its future instantiation in Reload) provide an
experimental extension mechanism, such as:

1) a new message be added to the 18 existing message types:
  P2PP-Msg = ... | Experimental

with some language that peers should quietly ignore experimental
messages that they don't recognize.

2) the experimental message

  Experimental = Common-header
              Peer-Info
              Certificate-Sign-Request
              Password
              Extension-Name
              Extension-Body
  Extension-Name = SAM | ...
  Extension-Body = extension-specific

The SAM overlay protocol is defined in
draft-buford-irtf-sam-overlay-protocol-00.txt
and defines the above extension mechanism.

John
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