Preventing Creation Of New Sessions For A Tunnel; Specifying A Drain Timeout For A Disconnected Tunnel; Shutting Down Destinations, Tunnels, And Sessions; On The Router - Juniper JUNOSE SOFTWARE 11.2.X - BROADBAND ACCESS CONFIGURATION GUIDE 7-20-2010 Configuration Manual

Preventing Creation of New Sessions for a Tunnel

Specifying a Drain Timeout for a Disconnected Tunnel

Shutting Down Destinations, Tunnels, and Sessions

Closing Existing and Preventing New Destinations, Tunnels, and Sessions on the Router
Copyright © 2010, Juniper Networks, Inc.
has a different effect, the no version of each command is equivalent. Each command's
no version leaves L2TP in the enabled state.
To prevent the creation of new tunnels and sessions at the specified destination:
host1(config)#l2tp drain destination ip 172.31.1.98
Use the l2tp drain tunnel command to prevent the creation of new sessions for a tunnel.
The l2tp drain tunnel command and the l2tp shutdown tunnel command both affect
the administrative state of L2TP for the tunnel. Although each command has a different
effect, the no version of each command is equivalent. Each command's no version leaves
L2TP in the enabled state.
To prevent the creation of new sessions for a specific tunnel:
host1(config)#l2tp drain tunnel virtual-router default ip 172.31.1.98 isp.com
Use the l2tp tunnel short-drain-timeout command to specify the amount of time a
disconnected LAC L2TP tunnel waits before restarting after it receives a restart request.
You can specify a drain timeout in the range 0–31 seconds. This feature enables the
router to restart tunnels more quickly than the standard 31-second drain time specified
by RFC-2661. By default, the router uses a short-drain timeout of 2 seconds.
To specify the short-drain timeout:
host1(config)#l2tp tunnel short-drain-timeout 12
You can configure how the router shuts down L2TP destinations, tunnels, and sessions.
You can specify the following shut down methods, which also prevent the creation of
new tunnels:
1. Closing Existing and Preventing New Destinations, Tunnels, and Sessions on the
Router on page 341
2. Closing Existing and Preventing New Tunnels and Sessions for a Destination on page 342
3. Closing Existing and Preventing New Sessions in a Specific Tunnel on page 342
4. Closing a Specific Session on page 342
You use the l2tp shutdown command to close all existing destinations, tunnels, and
sessions, and to prevent the creation of new destinations, tunnels, and sessions on the
router.
The l2tp shutdown command and the l2tp drain command both affect the administrative
state of L2TP on the router. Although each command has a different effect, the no version
Chapter 12: Configuring an L2TP LAC
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