Dell Force10 Z9000 - Page 154

154 | Bidirectional Forwarding Detection (BFD)
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Establishing sessions with VLAN neighbors
To establish a session, BFD must be enabled at interface level on both ends of the link, as shown in the
following illustration. The session parameters do not need to match.
Figure 7-25. Establishing Sessions with VLAN Neighbors
To establish a BFD session with a VLAN neighbor:
View the established sessions using the command
show bfd neighbors, as shown in n the following
illustration.
Figure 7-26. Viewing Established Sessions for VLAN Neighbors
Step Task Command Syntax Command Mode
1 Establish sessions with a VLAN neighbor. bfd neighbor ip-address INTERFACE VLAN
F
TOS(config-if-gi-4/25)# switchport
F
TOS(config-if-gi-4/25)# no shutdown
F
TOS(config-if-gi-4/25)# interface vlan 200
F
TOS(config-if-vl-200)# ip address 2.2.3.1/24
F
TOS(config-if-vl-200)# untagged gigabitethernet 4/25
F
TOS(config-if-vl-200)# no shutdown
F
TOS(config-if-vl-200)# bfd neighbor 2.2.3.2
4/25 2/3
VLAN 200
FTOS(config-if-gi-2/3)# switchport
FTOS(config-if-gi-2/3)# no shutdown
FTOS(config-if-gi-2/3)# interface vlan 200
FTOS(config-if-vl-200)# ip address 2.2.3.2/24
FTOS(config-if-vl-200)# untagged gigabitethernet 2/3
FTOS(config-if-vl-200)# no shutdown
FTOS(config-if-vl-200)# bfd neighbor 2.2.3.2
R1
R2
R2(conf-if-vl-200)#bfd neighbor 2.2.3.2
R2(conf-if-vl-200)#do show bfd neighbors
* - Active session role
Ad Dn - Admin Down
C - CLI
I - ISIS
O - OSPF
R - Static Route (RTM)
V - VRRP
LocalAddr RemoteAddr Interface State Rx-int Tx-int Mult Clients
* 2.2.3.2 2.2.3.1 Vl 200 Up 100 100 3 C
VLAN BFD Sessions