Configuring Ospf Nsf - Cisco Catalyst 4500 Series Configuration Manual

Configuring NSF with SSO Supervisor Engine Redundancy
Verify that "bgp graceful-restart" appears in the BGP configuration of the SSO-enabled switch by
Step 1
entering the show running-config command:
Switch# show running-config
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router bgp 120
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bgp graceful-restart
neighbor 10.2.2.2 remote-as 300
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Step 2 Repeat Step 1 on each of the BGP neighbors.
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,
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:
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

All peer devices participating in OSPF NSF must be made OSPF NSF-aware, which happens
Note
automatically when you install an NSF software image on the device.
To configure OSPF NSF, perform this task:
Command
Step 1
Switch# configure terminal
Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
11-12
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
Chapter 11 Configuring Cisco NSF with SSO Supervisor Engine Redundancy
remote AS YY, external link
Purpose
Enters global configuration mode.
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