Huawei AR1200 Series - Configuring LDP Extension for Inter-Area LSP; Checking the Configuration

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1 IS-IS area ID of each node and level of each node and interface

2.6.2 Configuring LDP Extension for Inter-Area LSP

To configure LDP extension for inter-area LSP, configure the ingress or transit node.

Procedure

Step 1 Run:

system-view

The system view is displayed.

Step 2 Run:

mpls ldp

The MPLS LDP view is displayed.

Step 3 Run:

longest-match

LDP is configured to search for routes based on the longest match rule to establish LSPs.

NOTE

Configuring this command during LDP GR is not allowed.

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2.6.3 Checking the Configuration

After LDP extension for inter-area LSP is configured, you can view information about the

establishment of Inter-Area LSPs.

Prerequisite

The configurations of LDP extension for inter-area LSP are complete.

Procedure

l Run the display mpls lsp command to check the setup of inter-area LSPs after LDP is

configured to search for routes based on the longest match rule to establish LSPs.

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Example

Configure LDP to search for routes based on the longest match rule to establish LSPs. 1.3.0.1/32

and 1.3.0.2/32 are routes to another IGP area. You can see that an inter-area LSP is established.

The configuration result is as follows:

[Huawei] display mpls lsp

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Huawei AR1200 Series Enterprise Routers

Configuration Guide - MPLS 2 MPLS LDP Configuration

Issue 01 (2011-12-30) Huawei Proprietary and Confidential

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