Huawei AR2200-S Series Configuration Manual page 197

Huawei AR2200-S Series Enterprise Routers
Configuration Guide - Reliability
Networking Requirements
On the network shown in
session with the one-arm Echo function needs to be configured on Router A to fast detect the
direct link between Router A and Router B. After receiving a BFD packet sent by Router A,
Router B directly loops back the packet, thus achieving fast detection over the link.
Figure 3-7 Networking diagram of the one-arm Echo function configuration
BFD-capable
Configuration Roadmap
The configuration roadmap is as follows:
1.
Data Preparation
To complete the configuration, you need the following data:
l
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Procedure
Step 1 Assign IP addresses to the interfaces directly connecting Router A and Router B.
# Assign an IP address to the interface on Router A.
<Huawei> system-view
[Huawei] sysname RouterA
[RouterA] interface gigabitethernet
[RouterA-GigabitEthernet1/0/0] undo shutdown
[RouterA-GigabitEthernet1/0/0] ip address 10.1.1.1 24
[RouterA-GigabitEthernet1/0/0] quit
# Assign an IP address to the interface on Router B.
<Huawei> system-view
[Huawei] sysname RouterB
[RouterB] interface gigabitethernet 1/0/0
[RouterB-GigabitEthernet1/0/0] undo shutdown
[RouterB-GigabitEthernet1/0/0] ip address 10.1.1.2 24
Issue 01 (2012-01-06)
Figure
RouterA
Single-hop
BFD session
GE1/0/0
10.1.1.1/24
Configure a BFD session on Router A to detect the direct link between Router A and
Router B.
Peer IP address to which a BFD session with the one-arm Echo function is bound
Local discriminator of a BFD session with the one-arm Echo function
The minimum interval between the receipt of BFD packets
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3-7, Router A supports BFD but Router B does not. A BFD
RouterB
GE1/0/0
10.1.1.2/24
BFD-incapable
1/0/0
3 BFD Configuration
189