Makes sense to me ! But is that the real cause ?.
"eric.lange@u sbank.com" To: [EMAIL PROTECTED] <eric.lange cc: Sent by: Subject: Re: PVC status don't go down [7:35389] nobody@groups tudy.com 02/14/2002 07:14 PM Please respond to "eric.lange@u sbank.com" The physical interface won't go down until their is a loss of signal from the switch. Is the line protocol up or down on the main interface of router B when router A is down? I look at it like this. Say I have a T1 Frame Relay circuit with 20 64K PVCs mapped to other circuits in a network. If one of the remote routers goes down I sure don't want my T1 to go down. The Subinterface however will show down. This happens in the frame relay network. Once the PVC is built through the frame relay cloud the network knows whether or not either side of the PVC is sending and receiving LMI. If LMI goes away on one end of the PVC, the PVC itself is affected not the connection from the router/CSU to the frame relay switch. Hope this helps! Eric Lange "Anthony Toh" cc: Sent by: Subject: PVC status don't go down [7:35389] nobody@groupstu dy.com 02/14/2002 04:30 AM Please respond to "Anthony Toh" Can anyone enlight me on this. I have 2 sites connected through a Frame Relay network as below : Router A ---- Frame Relay ---- Router B My question is this when interface of router A goes down, router B cannot notice it and the whole PVC is not updated as down. But when the interfaces of both routers are configured as subinterface, router B can then update router A's interface as down and the whole PVC goes down. What is concept behind ? Why doesn't the keepalive update both side properly ? Anthony. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=35483&t=35389 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]