Since i received no responses for my question regarding RAS ICV handling, can i assume that most (if not all) H.323 compliant implementations do not use RAS ICVs ? It is an optional IE in all RAS messages. If anyone knows of implementations using this functionality, please reply back. Any leads/pointers would be appreciated. thanks aseem@trillium.com Forwarded message:

From aseem@trillium.com Tue Jul 13 09:48 PDT 1999 From: aseem@trillium.com (Aseem Agarwal) Message-Id: <199907131659.JAA07327@arathorn.trillium.com.trillium.com> Subject: Question on RAS ICV (Integrity Check Value) To: h323implementors@imtc.org, ITU-SG16@mailbag.cps.intel.com Date: Tue, 13 Jul 1999 09:59:30 -0700 (PDT) Cc: aseem@trillium.com (Aseem Agarwal) X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII Content-Length: 477

Hi Sometime back there was a thread of discussion on the RAS ICV. I tried to download the previous message digests. But i did not find any decisive mails for future H.323 versions. Can u please tell me how do the present implementations handle ICV generation and ICV verification (at the receiving side) ? I can only think of re-encoding/ decoding the message, which i think shall be a big processing overhead.

Thanks in anticipation, aseem@trillium.com