Preventing Creation Of New Tunnels And Sessions At A Destination; Preventing Creation Of New Sessions For A Tunnel; Specifying A Drain Timeout For A Disconnected Tunnel; Shutting Down Destinations, Tunnels, And Sessions - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - BROADBAND ACCESS CONFIGURATION GUIDE 2010-10-12 Configuration Manual

Preventing Creation of New Tunnels and Sessions at a Destination

Preventing Creation of New Sessions for a Tunnel

Specifying a Drain Timeout for a Disconnected Tunnel

Shutting Down Destinations, Tunnels, and Sessions

Copyright © 2010, Juniper Networks, Inc.
To prevent the creation of new destinations, tunnels, and sessions:
host1(config)#l2tp drain
You use the l2tp drain destination command to prevent the creation of new tunnels and
sessions at a specific destination.
The l2tp drain destination command and the l2tp shutdown destination command
both affect the administrative state of L2TP for the destination. 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 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:
Closing Existing and Preventing New Destinations, Tunnels, and Sessions on the
1.
Router on page 348
Closing Existing and Preventing New Tunnels and Sessions for a Destination on page 348
2.
Chapter 12: Configuring an L2TP LAC
347