H3C Technologies H3C S10500 Series Switches - Manual (Page 174)

165
Configuring BFD basic functions
The BFD basic functions configuration is the basis for configuring BFD for other protocols.
Configuration prerequisites
Before configuring 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
Follow these steps to configure BFD basic functions:
To do… Use the command… Remarks
Enter system view system-view —
Specify the mode for establishing a
BFD session bfd session init-mode { active |
passive } Optional
active by default
Configure the destination port
number for multi-hop BFD control
packets
bfd multi-hop destination-port
port-number
Optional
4784 by default.
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.
Enter interface view
interface interface-type
interface-number
—
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
packet format .”
400 milliseconds by default
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 .”
400 milliseconds by default