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NE40E V800R010C00 Configuration Guide - MPLS 01

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Configuring Dynamic BFD for CR-LSP

Configuring Dynamic BFD for CR-LSP

Static BFD for CR-LSP can be configured to monitor an RSVP CR-LSP and protect traffic along a CR-LSP.

Usage Scenario

Compared with static BFD, dynamically creating BFD sessions simplifies configurations and reduces configuration errors.

Currently, dynamic BFD for CR-LSP cannot detect faults in the entire TE tunnel.


BFD for LSP can function properly though the forward path is an LSP and the reverse path is an IP link. The forward and reverse paths must be established over the same link. If a fault occurs, BFD cannot identify the faulty path. Before deploying BFD, ensure that the forward and reverse paths are over the same link so that BFD can correctly identify the faulty path.

Pre-configuration Tasks

Before configuring dynamic BFD for CR-LSP, configure an RSVP-TE tunnel.

Updated: 2018-07-12

Document ID: EDOC1100028530

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