Enable BFD under VRRP

This command allows the user to enable BFD under Virtual Router Redundancy Protocol (VRRP). BFD asynchronous mode is not supported for VRRP. Only an echo session will be initiated from VRRP backup to the VRRP master for a given VR instance in a given VLAN.

Syntax


 vrrp vrid VR-ID bfd IP-ADDR
no vrrp vrid VR-ID bfd IP-ADDR

Description

Enable BFD in VRRP for VLAN specific IP address.

Options

BFD: Configure Bidirectional Forwarding Detection (BFD) for the VLAN.
IP-ADDR: Configure the IP address of the peer to enable BFD for the VR.

NOTE:

BFD for VRRP is applicable only for two-router redundant systems. Only one BFD-VRRP session will be maintained for the multiple VRIDs configured on any specific VLAN. BFD-VRRP session is unique for multiple VRIDs enabled with BFD.

Enable BFD under VRRP Configuration

; J9850A Configuration Editor; Created on release #KB.16.02.0000x
; Ver #0b:fc.59.f4.7b.ff.ff.fc.ff.ff.3f.ef:0d
hostname "switch"
module A type j9989a
module C type j9550a
module F type j9987a
snmp-server community "public" unrestricted
oobm
 ip address dhcp-bootp
 exit
vlan 1
 name "DEFAULT_VLAN"
 untagged A2-A24,C1-C24,F1-F24
 ip address dhcp-bootp
 exit
ip routing
router vrrp
 ipv4 enable
 exit
bfd enable
bfd echo-src-ip-address 2.2.2.2
vlan 10
 untagged A2
 bfd min-transmit-interval 10 min-receive-interval 10 detect-multiplier 3
 bfd min-echo-receive-interval 700
 ip address 100.100.100.100 255.255.255.0
 vrrp vrid 7
  virtual-ip-address 100.100.100.102
  priority 255
  bfd 100.100.100.102
  enable
  exit
  exit

Show BFD

switch# sh bfd

Bidirectional Forwarding Detection (BFD) Information

 Admin Status   : Enabled
  Echo source IP : 2.2.2.2

 Global Statistics:
  Total Number of Control Packets Transmitted  : 5
  Total Number of Control Packets Received     : 5
  Total Number of Control Packets Dropped      : 0

Session VLAN SourceIP       DestIP          Echo  State Application
------ ----- -------------- --------------  ----- ----- -----------
1        10  100.100.100.100 100.100.100.102 Enabled Up  VRRP

switch# show bfd 1                                                        

 BFD Session Information

  Min Echo Rx(in msecs) : 700               

  Session VLAN Source IP       Destination IP  Echo     State      Application
  ------- ---- --------------- --------------- -------- ---------- -----------
  1        10  100.100.100.100  100.100.100.102    Enabled  Up         VRRP