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Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL_28731-01
Chapter 12 Configuring Cisco NSF with SSO Supervisor Engine Redundancy
Configuring NSF with SSO Supervisor Engine Redundancy
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Default minimum time between advertisement runs is 30 seconds
Configuring OSPF NSF
Note 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:
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:
Step 1 Verify that ‘nsf’ appears in the OSPF configuration of the SSO-enabled device by entering the show
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
.
.
.
Step 2 Enter the show ip ospf command to verify that NSF is enabled on the device:
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
Number of DCbitless external and opaque AS LSA 0
Number of DoNotAge external and opaque AS LSA 0
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Command Purpose
Step 1
Switch# configure terminal
Enters global configuration mode.
Step 2
Switch(config)# router ospf processID
Enables an OSPF routing process, which places the
switch in router configuration mode.
Step 3
Switch(config-router)# nsf
Enables NSF operations for OSPF.
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