Dell Force10 C150 Configuration Manual page 199

There is one BFD Agent for VLANs and port-channels, which resides on RP2 as opposed to the other
agents which are on the line card. Therefore, the 100 total possible sessions that this agent can maintain is
shared for VLANs and port-channels.
Configuring BFD for VLANs is a two-step process:
1. Enable BFD globally on all participating routers. See
2. Establish sessions with VLAN neighbors. See page 199.
Related configuration tasks
• Change session parameters. See page 200.
• Disable BFD for VLANs. See page 182.
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
Figure 9-25. The session parameters do not need to match.
Figure 9-25. Establishing Sessions with VLAN Neighbors
Force10(config-if-gi-4/25)# switchport
Force10(config-if-gi-4/25)# no shutdown
Force10(config-if-gi-4/25)# interface vlan 200
Force10(config-if-vl-200)# ip address 2.2.3.1/24
Force10(config-if-vl-200)# untagged gigabitethernet 4/25
Force10(config-if-vl-200)# no shutdown
Force10(config-if-vl-200)# bfd neighbor 2.2.3.2
To establish a BFD session with a VLAN neighbor:
Step Task
1 Establish sessions with a VLAN neighbor.
View the established sessions using the command
R1
4/25
Enabling BFD globally on page
VLAN 200
2/3
Command Syntax
bfd neighbor ip-address
show bfd neighbors
176.
R2
Force10(config-if-gi-2/3)# switchport
Force10(config-if-gi-2/3)# no shutdown
Force10(config-if-gi-2/3)# interface vlan 200
Force10(config-if-vl-200)# ip address 2.2.3.2/24
Force10(config-if-vl-200)# untagged gigabitethernet 2/3
Force10(config-if-vl-200)# no shutdown
Force10(config-if-vl-200)# bfd neighbor 2.2.3.2
fnC0043mp
Command Mode
INTERFACE VLAN
, as shown in Figure 9-26.
Bidirectional Forwarding Detection | 199