Cisco Catalyst 4500 Series Software Configuration Guide

40-12
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 40 Configuring Bidirection Forwarding Detection
How to Configure Bidirectional Forwarding Detection
Prerequisites
OSPF 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 “Configuring BFD Session Parameters on the Interface”
section on page 40-8 for more information.
To configure BFD support for OSPF for all interfaces:
What to Do Next
See the “Monitoring and Troubleshooting BFD” section on page 40-17 for more information on
monitoring and troubleshooting BFD. If you want to configure BFD support for another routing
protocol, see the following sections:
• Configuring BFD Support for BGP, page 40-9
• Configuring BFD Support for EIGRP, page 40-10
Configuring BFD Support for OSPF for One or More Interfaces
To configure BFD on one or more OSPF interfaces, perform the steps in this section.
Prerequisites
OSPF 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 “Configuring BFD Session Parameters on the Interface”
section on page 40-8 for more information.
Command or Action Purpose
Step 1
enable
Switch> enable
Enables privileged EXEC mode.
• Enter your password if prompted.
Step 2
configure terminal
Switch# configure terminal
Enters global configuration mode.
Step 3
Switch ospf process-id
Switch(config)# router ospf 4
Specifies an OSPF process and enters router configuration
mode.
Step 4
bfd all-interfaces
Switch(config-router)# bfd all-interfaces
Enables BFD globally on all interfaces associated with the
OSPF routing process.
Step 5
end
Switch(config-if)# end
Exits interface configuration mode and returns the switch to
privileged EXEC mode.
Step 6
show bfd neighbors [details]
Switch# show bfd neighbors detail
(Optional) Displays information that can help verify if the
BFD neighbor is active and displays the routing protocols
that BFD has registered.
Step 7
show ip ospf
Switch# show ip ospf
(Optional) Displays information that can help verify if BFD
for OSPF has been enabled.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E