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Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 24 Configuring NSF with SSO MSFC Redundancy
Using the CLI to Configure NSF/SSO
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.
Note
If no address families are listed, then BGP NSF also will not occur.
Router#
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 that participate in OSPF NSF must be made OSPF NSF-aware, which happens
automatically once you install an NSF software image on the device.
To configure OSPF NSF, perform this task:
Purpose
Command
Step 1
Enter global configuration mode.
Router#
configure terminal
Step 2
Enable an OSPF routing process, which places
the router in router configuration mode.
Router(config)#
router ospf
processID
Step 3
Enable NSF operations for OSPF.
Router(config-router)#
nsf