Enabling Bfd Globally; Setting Up A Bfd Session - Huawei NetEngine80E Configuration Manual - Reliability

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability

5.7.2 Enabling BFD Globally

You can perform related BFD configurations only after enabling BFD globally.
Context
Do as follows on the router:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
bfd
BFD is enabled globally and the BFD view is displayed.
----End

5.7.3 Setting Up a BFD Session

By creating a BFD session on both ends of a multi-hop link, you can fast detect the fault on the
multi-hop link.
Context
Do as follows on the router:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Select the step based on the type of the link detected by BFD:
l For an IPv4 link:
l For an IPv6 link:
Issue 02 (2011-09-10)
Run the bfd cfg-name bind peer-ip peer-ip [ vpn-instance vpn-instance-name ] [ source-
ip source-ip ] command to configure a BFD session.
– When a BFD session is set up for the first time, you need to bind the peer IP address to
it. After the BFD session is set up, you cannot modify it.
– When the BFD configuration items are created, the system checks only the format of the
IP address rather than the correctness. The BFD session cannot be established if incorrect
peer IP address or source IP address is bound.
– When the BFD and URPF are used together, URPF checks the source IP address of the
received packets. Therefore, when creating a BFD binding, you need to specify the source
IP address of the BFD packet in case the BFD packet is incorrectly discarded.
Run the bfd cfg-name bind peer-ipv6 peer-ipv6 [ vpn-instance vpn-instance-name ]
[ source-ipv6 ipv6-address ] command to configure a BFD6 session.
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