Reference Guide

150 | Bidirectional Forwarding Detection (BFD)
www.dell.com | support.dell.com
Figure 7-24. Viewing Established Sessions for VRRP Neighbors
Changing VRRP session parameters
BFD sessions are configured with default intervals and a default role. The parameters that can be
configured are: Desired TX Interval, Required Min RX Interval, Detection Multiplier, and system role.
You can change parameters for all VRRP sessions for a particular neighbor.
To change parameters for all VRRP sessions:
To change parameters for a particular VRRP session:
View session parameters using the command
show bfd neighbors detail, as shown in Figure 7-8.
Disabling BFD for VRRP
If any or all VRRP sessions are disabled, the sessions are torn down. A final Admin Down control packet
is sent to all neighbors and sessions on the remote system change to the Down state (Remote System State
Change due to Local State Admin Down).
Step Task Command Syntax Command Mode
1 Change parameters for all VRRP
sessions.
vrrp bfd all-neighbors interval milliseconds
min_rx milliseconds multiplier value role
[active | passive]
INTERFACE
Step Task Command Syntax Command Mode
1 Change parameters for a particular
VRRP session.
vrrp bfd neighbor ip-address interval
milliseconds min_rx milliseconds multiplier
value role [active | passive]
INTERFACE
R1(conf-if-gi-4/25)#do show vrrp
------------------
GigabitEthernet 4/1, VRID: 1, Net: 2.2.5.1
State: Backup, Priority: 1, Master: 2.2.5.2
Hold Down: 0 sec, Preempt: TRUE, AdvInt: 1 sec
Adv rcvd: 95, Bad pkts rcvd: 0, Adv sent: 933, Gratuitous ARP sent: 3
Virtual MAC address:
00:00:5e:00:01:01
Virtual IP address:
2.2.5.4
Authentication: (none)
BFD Neighbors:
RemoteAddr State
2.2.5.2 Up
VRRP BFD Session