Configuring BFD Configuring BFD
OmniSwitch AOS Release 8 Network Configuration Guide December 2017 page 20-30
Interface IP Address = fe80::2efa:a2ff:fe13:e403,
Source UDP Port = 49152,
State = UP,
Session Operating Mode = ECHO only,
Remote discriminator = 0,
Negotiated Tx interval = 0,
Negotiated Rx interval = 0,
Echo Rx interval = 300,
Multiplier = 3,
Applications Registered: = STATIC-ROUTING
Whenever there is any change to the interface/neighbor list or interface/neighbor state, PIM immediately
informs BFD about the changes. Additionally, whenever BFD detects any changes to the other end, BFD
updates its database accordingly and informs PIM for its fastest convergence.
Configuring BFD Support for VRRP Address Tracking
The steps below show you how to configure and verify BFD support for VRRP protocol, so that VRRP is
a registered protocol with BFD and receives forwarding path detection failure messages from BFD. Once
VRRP is a registered protocol with BFD, then BFD can be enabled for a specific VRRP address tracking
policy.
1 To associate VRRP protocol with BFD liveliness detection, register VRRP with BFD at the protocol
level using the vrrp bfd-state command as shown below:
-> vrrp bfd-state enable
BFD status for VRRP protocol is now enabled, which means that socket communication between VRRP
and BFD is enabled.
To de-register VRRP with BFD, enter the following command at the system prompt:
-> vrrp bfd-state disable
To verify the BFD status for VRRP protocol, you can use the show vrrp|vrrp3 command as shown
below:
-> show vrrp
VRRP default advertisement interval: 5 seconds
VRRP default priority: 100
VRRP default preempt: Yes
VRRP trap generation: Enabled
VRRP startup delay: 45 (expired)
VRRP BFD-STATUS : Enabled
IP Admin Adv.
VRID VLAN Address(es) Status Priority Preempt Interval
----+----+---------------+--------+--------+------+----------
1 101 192.60.245.240 Enabled 100 Yes 5
2 102 192.60.246.240 Enabled 100 Yes 5
-> show vrrp3
VRRP trap generation: Enabled
VRRP startup delay: 50 (expired)
Note. VRRP protocol supports BFD in the echo-only operational mode.
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