Configuring Bfd Support For Dynamic Routing Protocols - Cisco Catalyst 4500 series Administration Manual

Chapter 39 Configuring Bidirection Forwarding Detection

Configuring BFD Support for Dynamic Routing Protocols

You can enable BFD support for dynamic routing protocols at the router level to enable BFD support
globally for all interfaces or you can configure BFD on a per-interface basis at the interface level.
This section describes the following procedures:
•
•
•
Configuring BFD Support for BGP
This section describes the procedure for configuring BFD support for BGP so that BGP is a registered
protocol with BFD and will receive forwarding path detection failure messages from BFD.
Prerequisites
BGP must be running on all participating switches.
The baseline parameters for BFD sessions on the interfaces over which you want to run BFD sessions to
BFD neighbors must be configured. See the
section on page 39-8
To configure BFD support for BGP, perform this task:
Command or Action
Step 1
enable
Switch> enable
Step 2
configure terminal
Switch# configure terminal
Step 3
router bgp as-tag
Switch(config)# router bgp tag1
Step 4
neighbor ip-address fall-over bfd
Switch(config-router)# neighbor 172.16.10.2
fall-over bfd
Step 5
end
Switch(config-router)# end
Step 6
show bfd neighbors [details]
Switch# show bfd neighbors detail
Step 7
show ip bgp neighbor
Switch# show ip bgp neighbor
OL_28731-01
Configuring BFD Support for BGP, page 39-9
Configuring BFD Support for EIGRP, page 39-10
Configuring BFD Support for OSPF, page 39-11
for more information.
How to Configure Bidirectional Forwarding Detection
(optional)
(optional)
(optional)
"Configuring BFD Session Parameters on the Interface"
Purpose
Enables privileged EXEC mode.
• Enter your password if prompted.
Enters global configuration mode.
Specifies a BGP process and enters router configuration
mode.
Enables BFD support for fallover.
Exits router configuration mode and returns the switch to
privileged EXEC mode.
(Optional) Verifies that the BFD neighbor is active and
displays the routing protocols that BFD has registered.
(Optional) Displays information about BGP and TCP
connections to neighbors.
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)SG
39-9