Subject: Non Existing Tunnel

From: Sridhar Malarothu <[email-masked]>
Date: Sun, 29 Oct 2000 20:07:22 +0530

Hi,

   There may be possible situations where Control
Messages like Hello, session messages, etc can be 
received from a Peer for a non-existing Tunnel.

Should StopCCN message be sent to the Peer. If so
the Tunnel Id in StopCCN Hdr should be kept as zero
and the Assigned Tunnel Id in the StopCCN should be
kept as whatever the Tunnel ID in the Hdr of the
control message received from peer.

Or should the control message silently be discarded, so
that the Peer's reliable logic closes the Tunnel because
of failure to deliver a control message.

If a data message is received for a non-existing tunnel
should a StopCCN message be sent to Peer.

Also is there a possibility to receive a data message or 
WEN, SLI messages for a non-existing session (Tunnel is present).
If so what action should be taken.

Best Regards
Sridhar