mpls te backup
Use mpls te backup to enable tunnel backup and specify the backup mode for a tunnel.
Use undo mpls te backup to disable tunnel backup.
Syntax
mpls te backup { hot-standby | ordinary }
undo mpls te backup
Default
Tunnel backup is disabled.
Views
Tunnel interface view
Predefined user roles
network-admin
Parameters
hot-standby: Enables hot backup for the tunnel. In this mode, a backup CRLSP is established immediately after the primary CRLSP is established. When the primary CRLSP fails, MPLS TE immediately switches traffic to the backup CRLSP.
ordinary: Enables ordinary backup for the tunnel. In this mode, a backup CRLSP is established after the primary CRLSP fails.
Usage guidelines
After you execute this command for a tunnel, the record route flag is automatically set for the tunnel, regardless of whether the mpls te record-route command is configured.
In the same tunnel interface view, the mpls te backup command is mutually exclusive with the mpls te reoptimization command.
If both the mpls te backup and mpls te bidirectional commands are configured, only the mpls te bidirectional command takes effect.
Examples
# Enable hot backup for Tunnel 0.
<Sysname> system-view [Sysname] interface tunnel 0 mode mpls-te [Sysname-Tunnel0] mpls te backup hot-standby
Related commands
mpls te backup-path