Huawei AR1200 Series Configuration Manual - Mpls page 42

Huawei AR1200 Series Enterprise Routers
Configuration Guide - MPLS
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Issue 01 (2011-12-30)
The default value of the target Hello hold timer is 45, in seconds.
The value of the target Hello hold timer configured using the mpls ldp timer hello-
hold command may not be equal to the value of the timer that takes effect. The smaller
value between the timers configured at both ends of a remote LDP session takes effect.
Configure a Keepalive send timer for a remote LDP session.
1. Run:
system-view
The system view is displayed.
2. Run:
mpls ldp remote-peer remote-peer-name
The remote MPLS-LDP peer view is displayed.
3. Run:
mpls ldp timer keepalive-send interval
A Keepalive send timer is configured.
The default value of the Keepalive send timer is one third of the value of the effective
Keepalive hold timer.
Effective value of a Keepalive send timer = Min {Configured value of the Keepalive
send timer, One third of the effective value of the Keepalive hold timer}
If more than one LDP-enabled links connect to two LSRs, the values of Keepalive
send timers for all links must be the same. Different settings cause the LDP sessions
to be unstable.
CAUTION
Changing the value of a Keepalive send timer causes the reestablishment of related
LDP sessions.
Configure a Keepalive hold timer for a remote LDP session.
1. Run:
system-view
The system view is displayed.
2. Run:
mpls ldp remote-peer remote-peer-name
The remote MPLS-LDP peer view is displayed.
3. Run:
mpls ldp timer keepalive-hold interval
The Keepalive hold timer is configured.
The default value of the Keepalive hold timer is 45, in seconds.
The value of the Keepalive hold timer configured on the LSR may not be equal to the
value of the timer that takes effect. The smaller value between the timers configured
at both ends of a remote LDP session takes effect.
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