Example: Configuring Bfd Support For Static Routing - Cisco Catalyst 4500 series Administration Manual

Chapter 39 Configuring Bidirection Forwarding Detection
Local Diag: 0, Demand mode: 0, Poll bit: 0
MinTxInt: 50000, MinRxInt: 50000, Multiplier: 3
Received MinRxInt: 50000, Received Multiplier: 3
Holddown (hits): 0(0), Hello (hits): 50(0)
Rx Count: 10138
Tx Count: 10139
Elapsed time watermarks: 0 0 (last: 0)
Registered protocols: BGP
Uptime: 00:07:22
Last packet: Version: 1
The output of the show ip bgp neighbors command verifies that BFD has been enabled for the BGP
neighbors:
SwitchA
SwitchA# show ip bgp neighbors
BGP neighbor is 1.1.1.2,
Using BFD to detect fast fallover
..
SwitchB
SwitchB# show ip bgp neighbors
BGP neighbor is 1.1.1.1,
Using BFD to detect fast fallover
..

Example: Configuring BFD Support for Static Routing

In the following example, the network consists of SwitchA and SwitchB. Gigabit Ethernet interface 6/1
on SwitchA is connected to the same network as gigabit ethernet interface 6/1 on SwitchB. For the BFD
session to come up, SwitchB must be configured.
SwitchA
configure terminal
no switchport
interface Gigabit Ethernet 6/1
ip address 10.201.201.1 255.255.255.0
bfd interval 500 min_rx 500 multiplier 5
ip route static bfd Gigabit Ethernet 6/1 10.201.201.2
ip route 10.0.0.0 255.0.0.0 Gigabit Ethernet 6/1 10.201.201.2
SwitchB
configure terminal
no switchport
interface Gigabit Ethernet 6/1
ip address 10.201.201.2 255.255.255.0
bfd interval 500 min_rx 500 multiplier 5
ip route static bfd Gigabit Ethernet 6/1 10.201.201.1
ip route 10.1.1.1 255.255.255.255 Gigabit Ethernet 6/1 10.201.201.1
OL_28731-01
State bit: Up
Poll bit: 0
Multiplier: 3
My Discr.: 1
Min tx interval: 50000
Min Echo interval: 0
remote AS 45000, external link
remote AS 40000, external link
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)SG
Configuration Examples for Bidirectional Forwarding Detection
- Diagnostic: 0
- Demand bit: 0
- Final bit: 0
- Length: 24
- Your Discr.: 1
- Min rx interval: 50000
39-27