Configuring Bfd For Physical Ports - Dell Force10 Z9000 Configuration Manual

• Troubleshooting BFD

Configuring BFD for Physical Ports

Configuring BFD for Physical Ports is supported on C-Series and E-Series only.
BFD on physical ports is useful when no routing protocol is enabled. Without BFD, if the remote system
fails, the local system does not remove the connected route until the first failed attempt to send a packet.
When BFD is enabled, the local system removes the route as soon as it stops receiving periodic control
packets from the remote system.
Configuring BFD for a physical port is a two-step process:
1. Enable BFD globally.
2. Establish a session with a next-hop neighbor.
Related configuration tasks
• Change session parameters.
• Disable or re-enable BFD on an interface.
Enabling BFD globally
BFD must be enabled globally on both routers, as shown in the following illustration
To enable BFD globally:
Step Task
1 Enable BFD globally.
Verify that BFD is enabled globally using the command
figure.
Figure 7-4. Enabling BFD Globally
R1(conf)#bfd ?
enable
protocol-liveness
R1(conf)#bfd enable
R1(conf)#do show running-config bfd
!
bfd enable
R1(conf)#
| Bidirectional Forwarding Detection (BFD)
130
Enable BFD protocol
Enable BFD protocol-liveness
BFD Enabled
Command Syntax
bfd enable
show running bfd
, as shown in the following
Command Mode
CONFIGURATION