4000 Router Series MPLS Command Reference

Default

Bypass tunnels do not provide bandwidth protection.

Views

Tunnel interface view

Predefined user roles

network-admin

Parameters

bandwidth: Specifies the total bandwidth that the bypass tunnel can protect, in the range of 1 to

4294967295, in kbps.

ct0: Specifies the bypass tunnel to protect only CRLSPs of CT 0.

ct1: Specifies the bypass tunnel to protect only CRLSPs of CT 1.

ct2: Specifies the bypass tunnel to protect only CRLSPs of CT 2.

ct3: Specifies the bypass tunnel to protect only CRLSPs of CT 3.

un-limited: Puts no limit on total protected bandwidth.

Usage guidelines

If no CT is specified, CRLSPs of all CTs can use the bypass tunnel.

The bandwidth value specified with this command is used only for calculating and determining the

bandwidth protection relationship. The bandwidth is not reserved on the bypass tunnel.

The specified bandwidth value must be less than the actual bandwidth of the bypass tunnel. Otherwise,

the bypass tunnel might be overwhelmed after FRR, causing the protected tunnel to be torn down.

After you configure the mpls te backup bandwidth 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.

Examples

# Configure tunnel 0 to provide protection for CRLSPs of CT 0 without constraining the protected

bandwidth. Configure tunnel 1 to provide protection for CRLSPs of CT 1 and protect up to 1000 kbps

bandwidth.

<Sysname> system-view

[Sysname] interface tunnel 0 mode mpls-te

[Sysname-Tunnel0] mpls te backup bandwidth ct0 un-limited

[Sysname-Tunnel0] quit

[Sysname] interface tunnel 1

[Sysname-Tunnel1] mpls te backup bandwidth ct1 1000

Related commands

• display mpls te tunnel-interface

• mpls te fast-reroute

mpls te backup-path

Use mpls te backup-path to specify a path for the backup CRLSP and set the preference of the path.

Use undo mpls te backup-path to delete the specified path.