Technical Documentation



fate-sharing {cost value;from address <to address>;group group-name;}

Hierarchy Level

[edit logical-systems logical-system-name routing-instances routing-instance-name routing-options],[edit logical-systems logical-system-name routing-options],[edit routing-instances routing-instance-name routing-options],[edit routing-options]

Release Information

Statement introduced before JUNOS Release 7.4.

Statement introduced in JUNOS Release 9.0 for EX Series switches.


Specify a backup path in case the primary path becomes unusable.

You specify one or more objects within a group. The objects can be a LAN interface, a router ID, or a point-to-point link. Sequence is insignificant.

Changing the fate-sharing database does not affect existing established LSP until the next CSPF reoptimization. The fate-sharing database does affect fast-reroute detour path computations.


group group-name—Each fate-sharing group must have a name, which can be up to 32 characters long and can contain letters, digits, periods (.) and hyphens (-). You can define up to 512 groups.

cost value—Cost assigned to the group.

Range: 1 through 65,535
Default: 1

from address—Address of ingress routing device.

to address—Address of egress routing device. For point-to-point link objects, you must specify both a from and a to address.

Required Privilege Level

routing—To view this statement in the configuration.

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

Published: 2010-04-14