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DES-7200 Configuration Guide Chapter 3 BFD Configuration
3-14
The following example shows how to configure the time of the slow-timer to
1400 milliseconds:
DES-7200# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
DES-7200(config)# bfd slow-timer 1400
Cautio
n
The local end sends the BFD echo packet to the peer, which
returns the received packets with processing on the forwarding
panel. In this process, the BFD session detection may fail for the
peer has been congested resulting in the loss of the echo packets.
Under these circumstances, the corresponding QoS policy is
necessary to be configured to make sure that the echo packets
take the precedence to be processed or the echo function is
disabled.
3.3.4 Configuring the BFD
UP-Dampening Time
The BFD up-dampening time configuration solves the problem that due to the
line instability, BFD session state frequent switchover between DOWN and UP
occurs, which results in the frequent forwarding path switchover of the
associated application(for example, the static route) and the abnormal
operation.
Follow the following steps to configure the BFD up-dampening time:
Command Function
DES-7200>enable
Enter the privileged mode.
DES-7200# configure terminal
Enter the global configuration mode.
DES-7200(config)# interface type
number
Enter the interface configuration mode.
DES-7200(config-if)#bfd
up-dampening milliseconds
Configure the up-dampening time.
DES-7200(config-if)# end
Exit the interface configuration mode and
return to the privileged mode.
Use the no bfd up-dampening command in the interface configuration mode to
restore to the default value.
The following example shows how to configure the BFD up-dampening time as
60,000ms: