Huawei AR1200 Series - Optional) Configuring the Dynamic LDP Advertisement Capability

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By default, no node is enabled with MPLS globally.

Step 4 Run:

quit

The system view is displayed.

Step 5 Run:

mpls ldp

LDP is enabled globally and the MPLS-LDP view is displayed.

By default, no node is enabled with LDP globally.

Step 6 (Optional) Run:

lsr-id lsr-id

An LSR ID is set for an LDP instance.

The default LSR ID of an LDP instance is the LSR ID of the LSR where the LDP instance is

configured. Using the default value is recommended.

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2.3.3 (Optional) Configuring the Dynamic LDP Advertisement

Capability

On LSRs enabled with global LDP, the dynamic LDP advertisement capability allows extended

LDP functions to be dynamically enabled or disabled when the LDP session is working properly,

ensuring stable LSP operation.

Context

On an LSR disabled from the dynamic LDP negotiation capability, if an extended LDP function

is enabled after an LDP session has been created, the LDP session will be interrupted and the

extended LDP function will be negotiated, affecting LSP stability. The dynamic LDP

advertisement capability allows an extended LDP function to be enabled or disabled dynamically

during proper operation of an LDP session, ensuring LSP stability.

NOTE

Enabling this function immediately after LDP is enabled globally is recommended. The dynamic LDP

advertisement capability does not affect existing LDP functions.

Before the dynamic LDP advertisement capability is enabled, MPLS and LDP must be enabled globally.

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:

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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