From: Bauer, Rick (BAUERR@xxxxxxxxxxx)
Date: Mon May 20 2002 - 09:03:40 GMT-3
Linger does not cause the peer connection to go up/down, but rather it
causes circuits to drop and be created through the backup peer. What I think
you want to do if you want to see the peer connection go up/down is to use a
dynamic peer with inactivity connected to a passive peer or promiscuous
peer. HTH....
This is a clip from CCO.
Backup Peers
The backup-peer option is common to all encapsulation types (direct, FST,
and TCP) on a remote peer and specifies that this remote peer is a backup
peer for the router with the specified IP-address, Frame Relay Data-Link
Control Identifier (DLCI) number, or interface name. When the primary peer
fails, all circuits over this peer are disconnected and the user can start a
new session via their backup peer. Prior to Cisco IOS Release 11.2(6)F, you
could configure backup peers only for primary FST and TCP.
Also, when you specify the backup-peer option in a dlsw remote-peer tcp
command, the backup peer is activated only when the primary peer becomes
unreachable. Once the primary peer is reactivated, all new sessions use the
primary peer and the backup peer remains active only as long as there are
LLC2 connections using it. You can use the linger option to specify a period
(in minutes) that the backup peer remains connected after the connection to
the primary peer is reestablished. When the linger period expires, the
backup peer connection is taken down.
Note Because the expiration of the linger period may cause active LLC2
sessions to be terminated, you should not use the linger option unless you
want active LLC2 sessions over the backup peer to be terminated. If the
linger option is not specified the backup peer will remain active as long as
circuits remain. It will not, however, pass explorers and will not create
any new circuits while the primary is up.
-----Original Message-----
From: Michael Popovich [mailto:m.popovich@mchsi.com]
Sent: Saturday, May 18, 2002 3:36 PM
To: CCIE GROUPSTUDY
Subject: DLSW backup peer
Has anyone got the "linger" setting on the backup peer command to actually
work. I have tried this several times and have never actually seen it
disconnect the peer. I currently have one setup where when the primary peer
goes down connects to the backup peer. I have the linger set for 1 minute. I
bring the primary back up but after 1 minute the backup peer is still in
Connect state.
Any ideas?
-MP
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