mpls te enable (IS-IS view)

Use mpls te enable to enable MPLS TE for an IS-IS process.

Use undo mpls te enable to disable MPLS TE for an IS-IS process.

Syntax

mpls te enable [ level-1 | level-2 ]

undo mpls te enable [ level-1 | level-2 ]

Default

MPLS TE is disabled for an IS-IS process.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

level-1: Enables MPLS TE for IS-IS at Level-1.

level-2: Enables MPLS TE for IS-IS at Level-2.

Usage guidelines

If you do not specify an IS-IS level, this command enables MPLS TE for IS-IS at both Level-1 and Level-2.

IS-IS TE uses a sub-TLV of the extended IS reachability TLV (type 22) to carry TE attributes. Because the extended IS reachability TLV carries wide metrics, specify a wide metric-compatible metric style for the IS-IS process before enabling IS-IS TE. Available metric styles for IS-IS TE include wide, compatible, or wide-compatible. For more information about IS-IS, see Layer 3—IP Routing Configuration Guide.

If you execute this command multiple times, the most recent configuration takes effect. For example, if you execute the mpls te enable command and then the mpls te enable level-1 command, MPLS TE is enabled for Level-1 and disabled for Level-2.

After you enable MPLS TE for both Level-1 and Level-2, executing the undo mpls te enable level-1 command disables MPLS TE for Level-1. MPLS TE is still enabled for Level-2. Similarly, the undo mpls te enable level-2 command only disables MPLS TE for Level-2.

Examples

# Enable MPLS TE for IS-IS process 1 at Level-2.

<Sysname> system-view
[Sysname] isis 1
[Sysname-isis-1] cost-style compatible
[Sysname-isis-1] mpls te enable level-2

Related commands

cost-style (Layer 3—IP Routing Command Reference)