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JunosE 11.2.x Broadband Access Configuration Guide
Configuring the Global L2TP Peer Resynchronization Method
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host1(config-l2tp-dest-host-profile-host)#failover-resync silent-failover
To configure peer resynchronization for an AAA domain map tunnel:
host1(config)#aaa domain-map lac-tunnel
host1(config-domain-map)#tunnel 10
host1(config-domain-map-tunnel)#failover-resync silent-failover
You can configure the peer resynchronization method globally, or for L2TP host profiles
or domain map tunnels—a host profile or domain map tunnel configuration takes
precedence over the global peer resynchronization configuration.
When you change the peer resynchronization method, the change is not immediately
applied to existing tunnels. Tunnels continue using their current resynchronization method
until the next time the tunnel is reestablished.
Use the l2tp failover-resync command to configure the global L2TP peer
resynchronization method that L2TP failed endpoints use to resynchronize with a peer
non-failed endpoint.
Choose one of the following keywords to specify the peer resynchronization method. All
tunnels in the chassis use the specified method unless it is overridden by an L2TP host
profile configuration or an AAA domain map configuration.
failover-protocol—Tunnels use the L2TP failover protocol method. If the peer non-failed
endpoint does not support the L2TP failover protocol, a failover forces disconnection
of all tunnels and their sessions.
failover-protocol-fallback-to-silent-failover—Tunnels use the L2TP failover protocol
method; however, if the peer non-failed endpoint does not support the L2TP failover
protocol method, the tunnel falls back to using the silent failover method.
silent-failover—Tunnels use the silent failover method. The tunnels also inform their
peers that they support the failover protocol method for peer failovers.
disable—Tunnels do not use any peer resynchronization method for their own failovers.
Tunnels inform their peers that they support the failover protocol method for peer
failovers. A failover forces the disconnection of all tunnels and sessions.
Use the show l2tp command to display the global peer resynchronization configuration.
To configure peer resynchronization for an L2TP host profile or AAA domain map tunnel:
host1(config)#l2tp failover-resync silent-failover
To restore the global default setting, which uses the
failover-protocol-fallback-to-silent-failover method:
host1(config)#default l2tp failover-resync
To disable peer resynchronization, use the no version of the command—this is the
same as using the disable keyword:
host1(config)#no l2tp failover-resync
Copyright © 2010, Juniper Networks, Inc.
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