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show isis backup label-switched-path


Syntax (EX Series Switches and QFX Series)


Display information about MPLS label-switched-paths (LSPs) designated as backup routes for IS-IS routes.



Display information about MPLS LSPs designated as backup routes for IS-IS routes.

logical-system (all | logical-system-name

(Optional) Perform this operation on all logical systems or on a particular logical system.

Required Privilege Level


Output Fields

Table 1 lists the output fields for the show isis backup label-switched-path command. Output fields are listed in the approximate order in which they appear.

Table 1: show isis backup label-switched-path Output Fields

Field Name

Field Description

Backup MPLS LSPs

List of MPLS LSPs designated as backup paths for IS-IS routes.


IP address of the egress routing device for the LSP.


State of the LSP:

  • Up—The routing device can detect RSVP hello messages from the neighbor.

  • Down—The routing device has received one of the following indications:

    • Communication failure from the neighbor.

    • Communication from IGP that the neighbor is unavailable.

    • Change in the sequence numbers in the RSVP hello messages sent by the neighbor.

  • Deleted—LSP is no longer available as a backup path.

Last change

Time elapsed since the neighbor state changed either from up to down or from down to up. The format is hh:mm:ss.


Configured traffic engineering metric.


Configured metric.

Sample Output

show isis backup label-switched-path

Release Information

Command introduced in Junos OS Release 9.5.