Configuring Ospf Nsf - Cisco Catalyst 4500 Series Software Configuration Manual

Chapter 13 Configuring Cisco NSF with SSO Supervisor Engine Redundancy
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Default minimum time between advertisement runs is 30 seconds

Configuring OSPF NSF

OSPF Version2 fast hellos generate false alarms. We recommend that you use Bidirectional Forwarding
Note
Detection (BFD) instead.
All peer devices participating in OSPF NSF must be made OSPF NSF-aware, which happens
automatically when you install an NSF software image on the device.
To configure OSPF NSF, perform this task:
Command
Step 1
Switch# configure terminal
Step 2
Switch(config)# router ospf processID
Step 3
Switch(config-router)# nsf
Verifying OSPF NSF
To verify OSPF NSF, you must check that the NSF function is configured on the SSO-enabled
networking device. To verify OSPF NSF, follow these steps:
Verify that 'nsf' appears in the OSPF configuration of the SSO-enabled device by entering the show
Step 1
running-config command:
Switch# show running-config
route ospf 120
log-adjacency-changes
nsf
network 192.168.20.0 0.0.0.255 area 0
network 192.168.30.0 0.0.0.255 area 1
network 192.168.40.0 0.0.0.255 area 2
.
.
.
Enter the show ip ospf command to verify that NSF is enabled on the device:
Step 2
Switch> show ip ospf
Routing Process "ospf 1" with ID 192.168.2.1 and Domain ID 0.0.0.1
Supports only single TOS(TOS0) routes
Supports opaque LSA
SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
Minimum LSA interval 5 secs. Minimum LSA arrival 1 secs
Number of external LSA 0. Checksum Sum 0x0
Number of opaque AS LSA 0. Checksum Sum 0x0
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Configuring NSF with SSO Supervisor Engine Redundancy
Purpose
Enters global configuration mode.
Enables an OSPF routing process, which places the
switch in router configuration mode.
Enables NSF operations for OSPF.
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