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Applicable Environment
If the BFD can modify the Port State Table (PST), it modifies the corresponding entry in the
PST when it detects that an interface is Down. Through the PST, other upper application
protocols can acknowledge whether the interface has a fault.
Currently, for the NE80E/40E, LDP FRR and IP FRR based on BFD detection need to know
the BFD detection result through the PST.
You do not need to run the
process-pst
command on the applications that do not learn the BFD
results through the PST.
NOTE
l
For the LDP FRR, refer to chapter "MPLS Basic Configuration"in the
HUAWEI NetEngine80E/40E
Router
Configuration Guide - MPLS
.
l
IP FRR works for the public network and for the private network. For information about the IP FRR
for the public network, refer to Chapter 10 "Routing Policy Configuration" in the
HUAWEI
NetEngine80E/40E Router
Configuration Guide - IP Routing
.
l
For information about the IP FRR for the private network, refer to Chapter 4 "BGP MPLS IP VPN
Configuration" in the
HUAWEI NetEngine80E/40E Router
Configuration Guide - VPN.
Pre-configuration Tasks
Before configuring the BFD to modify the PST, complete the task of
.
Data Preparation
To configure the BFD to modify the PST, you need the following data.
No.
Data
1
Configuration name of the BFD session
5.6.2 Permitting the BFD to Modify the PST
By permitting a BFD session to modify the PST, you can sense the fault detected by the BFD
session through the PST.
Context
Perform the following steps on the router that learns the BFD results through the PST:
Procedure
Step 1
Run:
system-view
The system view is displayed.
Step 2
Run:
bfd
bfd-name
HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
5 BFD Configuration
Issue 02 (2014-09-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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