Enabling Bfd Globally - Huawei NetEngine80E Configuration Manual - Reliability

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
Data Preparation
To configure single-hop BFD, you need the following data.
No.
1
2
3

5.2.2 Enabling BFD Globally

Enabling BFD globally is the prerequisite for BFD configurations.
Context
If single-hop BFD detection is performed on Layer 2 interfaces or Layer 3 physical interfaces
without IP addresses, a default multicast IP address is used.
Perform the following steps on both ends of a link to be checked:
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.
Step 3 (Optional) Run:
default-ip-address ip-address
The default multicast IP address of BFD is configured.
The default multicast IP address used by BFD is 224.0.0.184.
----End
Issue 02 (2014-09-30)
Data
BFD configuration name
Peer IP address, local interface type and number for the directly-connected link
detected by BFD, and default multicast address used by BFD if it checks the physical
layer status of the link
BFD session parameters: local and remote discriminators
NOTE
l Currently, multicast address detection is supported only in BFD for IPv4 but not BFD for IPv6.
Therefore, this command is applicable in only IPv4.
l If more than one BFD session is created for the same link, for example, a Layer 3 interface is connected
by BFD-enabled Layer 2 switches, various default multicast addresses need to be configured for the
switches, distinguishing one BFD session from others and ensuring that BFD packets are forwarded
correctly.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5 BFD Configuration
324