R3721-F3210-F3171-HP High-End Firewalls High Availability Configuration Guide-6PW101

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Configuration prerequisites
Before you configure BFD basic functions, complete the following tasks:
• Configure the network layer addresses of the interfaces so that adjacent nodes are reachable to
each other at the network layer
• Configure the routing protocols that support BFD
Configuration procedure
To configure BFD basic functions:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Specify the mode for
establishing a BFD session.
bfd session init-mode { active |
passive }
Optional.
active by default.
3. Configure the destination port
number for multi-hop BFD
control packets.
bfd multi-hop destination-port
port-number
Optional.
4784 by default.
4. Configure the source IP
address of echo packets.
bfd echo-source-ip ip-address
Optional.
The source IP address should not
be on the same network segment
as any local interface’s IP address.
Otherwise, a large number of
ICMP redirect packets may be sent
from the peer, resulting in link
congestion.
5. Enter interface view.
interface interface-type
interface-number
N/A
6. Configure the minimum
interval for receiving BFD
echo packets.
bfd min-echo-receive-interval
value
Optional.
For relevant information, see the
description of the Required Min
Echo RX Interval field in "BFD
pac
ket format."
The value ranges from 10 to 1000
and the default is 400.
7. Configure the minimum
interval for transmitting BFD
control packets.
bfd min-transmit-interval value
Optional.
For relevant information, see the
description of the Desired Min TX
Interval field in "BFD packet
format."
The value ranges from 10 to 1000
and the default is 400.