No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

NE40E V800R010C00 Configuration Guide - MPLS 01

Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring LDP-IGP Synchronization

Configuring LDP-IGP Synchronization

LDP-IGP synchronization helps minimize traffic interruptions when the traffic is switched from the backup link to the primary link and implement millisecond-level switchovers.

Usage Scenario

You can configure LDP-IGP synchronization to prevent traffic loss after the primary LSP fails on the network where primary and backup links exist. The details are as follows:
  • When the primary link fails, IGP traffic and LSP traffic are switched to the backup link. When the primary link recovers from a fault, LSP traffic is discarded because IGP converges faster than LDP, and IGP traffic is switched to the primary LSP earlier than LDP traffic.
  • When the primary link is restored and an LDP session between nodes along the primary link fails, LSP traffic is discarded because LSP traffic is switched from the primary link to the backup link, whereas IGP traffic is still transmitted through the primary link.
NOTE:

Both OSPF and IS-IS support LDP-IGP synchronization.

Pre-configuration Tasks

Before configuring LDP-IGP synchronization, complete the following tasks:

  • Configure basic IGP (OSPF or IS-IS) functions.

  • Enable MPLS globally and on each interface.

  • Enable MPLS LDP globally and on each interface.

Configuration Procedures

Figure 4-9  LDP-IGP synchronization configuration
Download
Updated: 2018-07-12

Document ID: EDOC1100028530

Views: 101248

Downloads: 336

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Share
Previous Next