mpls te fast-reroute (Tunnel interface view)

Function

The mpls te fast-reroute command enables fast reroute (FRR).

The undo mpls te fast-reroute command disables FRR.

By default, FRR is disabled.

Format

mpls te fast-reroute [ bandwidth ]

undo mpls te fast-reroute

Parameters

Parameter	Description	Value
bandwidth	Indicates that bandwidth protection is enabled for a primary tunnel.	-

Parameter

Description

Value

bandwidth

Indicates that bandwidth protection is enabled for a primary tunnel.

Views

Tunnel interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mpls-te	write

Usage Guidelines

Usage Scenario

Configuring FRR is recommended for services requiring high reliability.

Configuration Impact

Additional bandwidth resources are required for a TE FRR bypass tunnel because the bypass tunnel needs to be established in advance. Configuring TE FRR for key services is recommended if bandwidth is insufficient for TE FRR to protect all services. After TE FRR is enabled, the route and label record function will be enabled automatically, irrespective of whether or not the mpls te record-route label command is run.

Precautions

Disable FRR before running the mpls te record-route or undo mpls te record-route command.

Example

# Enable FRR on tunnel 1.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] mpls te
[*HUAWEI-mpls] quit
[*HUAWEI] interface tunnel 1
[*HUAWEI-Tunnel1] tunnel-protocol mpls te
[*HUAWEI-Tunnel1] mpls te fast-reroute