mpls te pce delegate (MPLS view)

Function

The mpls te pce delegate command enables the active stateful PCE to calculate and maintain paths for TE tunnels.

The undo mpls te pce delegate command disables PCE path calculation.

By default, PCE path calculation is disabled.

Format

mpls te pce delegate

undo mpls te pce delegate

Parameters

None

Views

MPLS view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mpls-te	write

Usage Guidelines

Usage Scenario

The stateful PCE technique can be used to improve network bandwidth use efficiency.

Using the mpls te pce delegate command or mpls te pce inter-layer delegate can enable active stateful PCE. In active stateful PCE mode, the PCE client proactively updates the RSVP-TE LSP status and parameters and reports them to the PCE server. In addition, it grants the server the permission to calculate a path for the LSP.

The command mpls te pce inter-layer delegate enables the server to uniformly manage and calculate all local GMPLS tunnels, which may lead to path changes and service switchovers.

Prerequisites

Enable mpls te

Precautions

PCE is in conflict with ordinary CR-LSP backup.

PCE is in conflict with best-effort CR-LSP backup.

PCE is in conflict with P2MP TE.

Example

# Enable active stateful PCE to calculate paths for LSPs.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] mpls te
[*HUAWEI-mpls] mpls te pce delegate