[48493] in North American Network Operators' Group
Clarification needed on ATM
daemon@ATHENA.MIT.EDU (Rich Sena)
Thu Jun 6 08:23:58 2002
Date: Thu, 6 Jun 2002 08:23:14 -0400 (EDT)
From: Rich Sena <ras@thick.net>
To: "Fish is good Brainfood..." <NANOG@merit.edu>
Errors-To: owner-nanog-outgoing@merit.edu
OK - sorry if this is elementary - however I am dealing with a challenge
to the security of some ATM links that we have connecting remote
facilities to a main campus. The connections are all PVPs with individual
PVCs defined point to point. The concern that is being raised is that
although these connections appear point-to-point PVCs to the router
interfaces at our sites and our main campus - they are more than likely
switched SVCs on the provider backbone...
I had thought that a PVC was a nailed up connection between vpi-vci pairs
throughout the provider ATM network - is that an incorrect assumption? And
if so is the scenario that was raised possible/probable and a concern?
Thanks for any info kids...
--
Rich Sena - ras@thick.net
ThickNET Consulting
"On the way to understanding; you understand, and forget."
