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Software Configuration Guide—Release 15.0(2)SG
OL-23818-01
Chapter 9 Configuring Cisco NSF with SSO Supervisor Engine Redundancy
Configuring NSF with SSO Supervisor Engine Redundancy
Step 3 On the SSO device and the neighbor device, verify that the graceful restart function is shown as both
advertised and received, and confirm the address families that have the graceful restart capability. If no
address families are listed, BGP NSF does not occur either:
Switch# show ip bgp neighbors x.x.x.x
BGP neighbor is 192.168.2.2, remote AS YY, external link
BGP version 4, remote router ID 192.168.2.2
BGP state = Established, up for 00:01:18
Last read 00:00:17, hold time is 180, keepalive interval is 60 seconds
Neighbor capabilities:
Route refresh:advertised and received(new)
Address family IPv4 Unicast:advertised and received
Address famiiy IPv4 Multicast:advertised and received
Graceful Restart Capabilty:advertised and received
Remote Restart timer is 120 seconds
Address families preserved by peer:
IPv4 Unicast, IPv4 Multicast
Received 1539 messages, 0 notifications, 0 in queue
Sent 1544 messages, 0 notifications, 0 in queue
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
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.