path explicit-path

Function

The path explicit-path command configures explicit paths to leaf nodes on a P2MP TE tunnel.

The undo path explicit-path command deletes all explicit paths to leaf nodes on the P2MP TE tunnel.

By default, no explicit path is specified for each leaf node.

Format

path explicit-path path-name

undo path explicit-path

Parameters

Parameter	Description	Value
path-name	Specifies a name of an explicit path. The parameter is specified using the explicit-path command.	The value is a string of 1 to 128 case-insensitive characters, spaces not supported.

Parameter

Description

Value

path-name

Specifies a name of an explicit path. The parameter is specified using the explicit-path command.

The value is a string of 1 to 128 case-insensitive characters, spaces not supported.

Views

Leaf node view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mpls-te	write

Usage Guidelines

Usage Scenario

A P2MP TE tunnel can be established using constraint shortest path first (CSPF) to calculate a path that originates from the ingress and is destined for each leaf node. It can also be established over explicit paths. Configuring explicit paths facilitates the control and planning of the paths over which a P2MP TE tunnel is established. A user can configure an explicit path for a specific leaf node or each leaf node. The path explicit-path command configures explicit paths to leaf nodes.

Prerequisites

Leaf nodes have been created in a leaf list using the destination command.

Configuration Impact

Configuring an explicit path for path planning must prevent a re-merge or cross-over event.

Example

# Configure path1 to the leaf node 2.2.2.2 in the leaf list iptvch1.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] mpls te
[*HUAWEI-mpls] quit
[*HUAWEI] explicit-path path1
[*HUAWEI-explicit-path-path1] next hop 4.4.4.4
[*HUAWEI-explicit-path-path1] quit
[*HUAWEI] mpls te leaf-list iptvch1
[*HUAWEI-mpls-te-leaf-list-iptvch1] destination 2.2.2.2
[*HUAWEI-mpls-te-leaf-list-iptvch1-destination-2.2.2.2] path explicit-path path1