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keep-alive (Protocols MSDP)


Hierarchy Level


Specify the keepalive interval to use when maintaining a connection with the MSDP peer. If a keepalive message is not received for the hold-time period, the MSDP peer connection is terminated. According to the RFC 3618, Multicast Source Discovery Protocol (MSDP), the recommended value for the keepalive timer is 60 seconds.

The hold-time period must be longer than the keepalive interval.

You might want to change the keepalive interval and hold-time period for consistency in a multi-vendor environment.


In Junos OS, the default hold-time period is 75 seconds, and the default keepalive interval is 60 seconds.


seconds—Keepalive interval.

  • Range: 10 through 60 seconds

  • Default: 60 seconds

Required Privilege Level

routing—To view this statement in the configuration.

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

Release Information

Statement introduced in Junos OS Release 12.3.