R0106-HP MSR Router Series MPLS Command Reference(V7)

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Predefined user roles
network-admin
Parameters
preference value: Sets a preference value for the specified path, in the range of 1 to 10. The smaller the
value, the higher the preference.
dynamic: Uses the dynamically calculated path to establish the backup CRLSP.
explicit-path path-name: Uses the specified explicit path to establish the backup CRLSP. The path-name
argument specifies the name of an explicit path, a case-sensitive string of 1 to 31 characters.
no-cspf: Calculates the path by searching the routing table instead of using the CSPF algorithm.
Usage guidelines
You can specify up to 10 backup paths for a tunnel interface. The backup paths must have different
preferences.
When establishing a backup CRLSP, MPLS TE performs CSPF calculations using the specified paths in the
preference order from high to low until the backup CRLSP is established successfully. If the CSPF
calculations for all paths are failed, the backup CRLSP cannot be established.
This command takes effect only when backup has been enabled for the current tunnel by using the mpls
te backup command.
Examples
# Configure that interface Tunnel 0 can use explicit path path1 and the dynamically calculated path to
establish a backup CRLSP, and set a higher preference for the explicit path.
<Sysname> system-view
[Sysname] interface tunnel 0 mode mpls-te
[Sysname-Tunnel0] mpls te backup-path preference 1 explicit-path path1
[Sysname-Tunnel0] mpls te backup-path preference 2 dynamic
Related commands
• display mpls te tunnel-interface
• mpls te backup
• mpls te path
mpls te bandwidth
Use mpls te bandwidth to assign bandwidth to the MPLS TE tunnel and specify a class type (CT) for the
tunnel.
Use undo mpls te bandwidth to restore the default.
Syntax
mpls te bandwidth [ ct0 | ct1 | ct2 | ct3 ] bandwidth
undo mpls te bandwidth
Default
No bandwidth (0 bps) is assigned to an MPLS TE tunnel and the tunnel is available for CT 0.
Views
Tunnel interface view