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failover on-loss-of-keepalives

Syntax

failover on-loss-of-keepalives;

Hierarchy Level

[edit chassis redundancy]

Release Information

Statement introduced before JUNOS Release 7.4.

Description

Instruct the backup router to take mastership if it detects a loss of keepalive signal from the master Routing Engine.

Default

If the failover on-loss-of-keepalives statement at the [edit chassis redundancy] hierarchy level is not included and graceful Routing Engine switchover (GRES) is not enabled, failover cannot occur.

When the failover on-loss-of-keepalives statement is included and graceful Routing Engine switchover is not configured, failover occurs after 300 seconds (5 minutes).

When the failover on-loss-of-keepalives statement is included and graceful Routing Engine switchover is configured, the keepalive signal is automatically enabled and the failover time is set to 2 seconds (4 seconds on M20 routers) . You cannot manually reset the keepalive time.

Usage Guidelines

See Configuring Routing Engine Redundancy.

Required Privilege Level

view-level—To view this statement in the configuration.

control-level—To add this statement to the configuration.


Published: 2010-01-13

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