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What is IGP-based LDP Automatic Configuration

Latest reply: Dec 19, 2018 08:34:26 831 1 10 0 0

Hello everyone,

Today I will share with you what is IGP-based LDP automatic configuration.

When we deploy the MPLS LDP on the MAN network, we need to enable the command MPLS and MPLS LDP on the interface which belong to the MPLS domain. If the network is large, we need to repeat this command many times. Does there have command can finish it one time?

IGP-based LDP automatic configuration reduces configuration workloads and ensures correct configurations.

To configure IGP-based MPLS LDP, you need to enable MPLS LDP globally first and then on the interfaces that need the function. If a large number of interfaces need MPLS LDP, you need to configure them one by one, which is time-consuming and prone to configuration incorrectness.

To address this issue, configure IGP-based LDP automatic configuration. With IGP-based LDP automatic configuration, MPLS LDP is enabled automatically on IGP-capable interfaces after MPLS LDP is enabled globally.

If we deployed the IS-IS as the IGP, it can configure the LDP automatic configuration based on the IS-IS.

The configuration template is as below:

Table 1-1 LDP Automatic Configuration Template

#

isis 1

mpls ldp   auto-config

#

commit

#

After the command is run, MPLS LDP is enabled automatically on all interfaces which can establish IS-IS neighbor relationships in the IS-IS process. If you want to disable MPLS LDP from an interface, run the isis mpls ldp auto-config disable command in the interface view.

That is all I want to share with you! Thank you!

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4am
Created Dec 19, 2018 08:34:26

It is useful for understanding LDP.
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