Hi Group,
This is pertaining to FR Backup over ISDN
http://www.cisco.com/warp/customer/125/12.html#topic21
It may not help much to back up the main interface because you could
lose permanent virtual circuits (PVCs) without the main interface going
down. Remember, the protocol is being exchanged
Breif example... Your local T1 ciruit to your carrier is Up Up but.. when
you do a sh frame-relay pvc your DLCI shows INACTIVE. Hence why the ISDN
backup interface command does not take effect since the interface is still
up.. even though your frame-relay is not working. This can be caused to
you need to configure dialer watch for this to work correctly.
-Original Message-
From: Salvatore De Luca [mailto:[EMAIL PROTECTED]
Sent: 25 June 2003 09:42
To: [EMAIL PROTECTED]
Subject: RE: FR Backup Over ISDN [7:71332]
Breif example... Your local T1 ciruit to your carrier is Up Up
Yes you are correct that backing up the main interface will not help
if the remote side of the frame connection goes down, you will still be
up up to your local switch. since I think 10.2 or 3 you can backup the
subinterface, it recognizes the PVC being down and will initiate you
backup
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