Dell Force10 S4810P - Show Bfd Neighbors

Bidirectional Forwarding Detection (BFD) | 155
Figure 8-2. Establishing Sessions with IS-IS Neighbors
To establish BFD with all IS-IS neighbors:
To establish BFD with all IS-IS neighbors out of a single interface:
View the established sessions using the command
show bfd neighbors, as shown in Figure 8-3.
Figure 8-3. Viewing Established Sessions for IS-IS Neighbors
Step Task Command Syntax Command Mode
1 Establish sessions with all IS-IS neighbors. bfd all-neighbors ROUTER-ISIS
Step Task Command Syntax Command Mode
1 Establish sessions with all IS-IS neighbors out of an
interface.
isis bfd all-neighbors INTERFACE
R1: Level 1 - 2
R2: Level 2
fnC0041mp
4/24
2/1
AREA 1
AREA 2
F
TOS(conf)# router isis
F
TOS(conf-router_isis)# net 01.1921.6800.1001.00
F
TOS(conf-router_isis)# interface gigabitethernet 4/24
F
TOS(config-if-gi-4/24)# ip address 2.2.2.1/24
F
TOS(config-if-gi-4/24)# ip router isis
F
TOS(config-if-gi-4/24)# exit
F
TOS(conf)# router isis
F
TOS(conf-router_isis)# bfd all-neighbors
FTOS(conf)# router isis
FTOS(conf-router_isis)# net 02.1921.6800.2002.00
FTOS(conf-router_isis)# interface gigabitethernet 2/1
FTOS(conf-if-gi-2/1)#ip address 2.2.2.2/24
FTOS(config-if-gi-2/1)# ip router isis
FTOS(config-if-gi-2/1)# exit
FTOS(conf)# router isis
FTOS(conf-router_isis)# bfd all-neighbors
R3: Level 1 - 2
6/0
AREA 3
FTOS(conf)# router isis
FTOS(conf-router_isis)# net 03.1921.6800.3003.00
FTOS(conf-router_isis)# interface gigabitethernet 6/0
FTOS(conf-if-gi-6/0)#ip address 2.2.3.2/24
FTOS(config-if-gi-6/0)# ip router isis
FTOS(config-if-gi-6/0)# exit
FTOS(conf)# router isis
FTOS(conf-router_isis)# bfd all-neighbors
2/2
6/1
FTOS(conf-router_isis)# interface gigabitethernet 2/2
FTOS(conf-if-gi-2/2)#ip address 2.2.3.1/24
FTOS(config-if-gi-2/2)# ip router isis
FTOS(config-if-gi-2/2)# exit
FTOS(conf)# router isis
FTOS(conf-router_isis)# bfd all-neighbors
FTOS(conf-router_isis)# interface gigabitethernet 6/
1
FTOS(conf-if-gi-6/1)#ip address 2.2.4.1/24
R2(conf-router_isis)#bfd all-neighbors
R2(conf-router_isis)#do show bfd neighbors
* - Active session role
Ad Dn - Admin Down
C - CLI
I - ISIS
O - OSPF
R - Static Route (RTM)
LocalAddr RemoteAddr Interface State Rx-int Tx-int Mult
Clients
* 2.2.2.2 2.2.2.1 Gi 2/1 Up 100 100 3 I
IS-IS BFD Sessions Enabled