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; Chapter 12 Configuring An L2Tp Lac - Juniper JUNOSE 11.1.X - BROADBAND ACCESS CONFIGURATION GUIDE 6-4-2010 Configuration Manual

For e series broadband services routers - broadband access

Table of Contents

Preventing Creation of New Tunnels and Sessions at a Destination

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.

Use the l2tp drain tunnel command to prevent the creation of new sessions for a

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.

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

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.

host1(config)#l2tp drain

To prevent the creation of new tunnels and sessions at the specified destination:

host1(config)#l2tp drain destination ip 172.31.1.98

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

To specify the short-drain timeout:

host1(config)#l2tp tunnel short-drain-timeout 12

Preventing Creation of New Tunnels and Sessions at a Destination

Chapter 12: Configuring an L2TP LAC