Overriding All Endpoint Discriminators; Enabling Tunnel Switching - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - BROADBAND ACCESS CONFIGURATION GUIDE 2010-10-12 Configuration Manual

JunosE 11.3.x Broadband Access Configuration Guide

Overriding All Endpoint Discriminators

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Documentation

Enabling Tunnel Switching

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Documentation
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host1:boston(config-l2tp-dest-profile-host)#bundled-group-id 4
NOTE: We strongly recommend that you use this feature only with the support
of JTAC.
You can also configure the router to ignore the value of all endpoint discriminators when
it selects a SM and to use only the bundled group identifier that you assigned by issuing
the bundled-group-overrides-mlppp-ed command.
Issuing the bundled-group-id and bundled-group-id-overrides-mlppp-ed commands
together forces the router to place the bundled sessions on the same SM when a PPP
client incorrectly specifies different endpoint discriminators for links in the same bundle.
To configure the router to ignore the value of all endpoint discriminators:
host1:boston(config-l2tp-dest-profile-host)#bundled-group-id-overrides-mlppp-ed
bundled-group-id
bundled-group-id-overrides-mlppp-ed
L2TP tunnel switching allows you to switch packets between one session terminating
at an L2TP LNS and another session originating at an L2TP LAC. What distinguishes a
tunnel-switched LAC from a conventional one is that there are two interface columns:
one for the incoming session (LNS) and one for the outgoing session (LAC). The router
forwards traffic from the incoming session to the outgoing session and vice versa.
You can select tunnel switching on a per-chassis basis. By default, tunnel switching is
disabled. This preserves current behavior and prevents inadvertent attempts to switch
tunnels.
NOTE: Each individual L2TP session involved in tunnel switching is counted
toward the maximum number of sessions supported on an E Series router.
To enable tunnel switching:
host1(config)#l2tp tunnel-switching
l2tp tunnel-switching
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