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

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Usage guidelines
The auto FRR function allows an interface to automatically set up a node-protection bypass tunnel and a
link-protection bypass tunnel for each of its primary CRLSPs. The egress interface of the primary CRLSPs
is the interface itself.
Bypass tunnels are set up before the primary CRLSP fails. Therefore, they use extra bandwidth. To save
network bandwidth, configure auto FRR only for key interfaces. On other interfaces, use the mpls te
auto-tunnel backup disable command to disable the interfaces from automatically setting up bypass
tunnels.
Execution of the mpls te auto-tunnel backup disable command deletes all existing bypass tunnels
automatically created on the interface.
Examples
# Disable auto FRR for interface GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] mpls te auto-tunnel backup disable
Related commands
auto-tunnel backup
mpls te backup
Use mpls te backup to enable CRLSP backup and specify the backup mode for a tunnel.
Use undo mpls te backup to restore the default.
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
When backup is enabled for a tunnel, the record route flag is automatically set for the tunnel, regardless
of whether the mpls te record-route command is configured.