Cisco Catalyst 4500 Series - Configuring Cisco NSF with SSO Supervisor Engine Redundancy

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CHAPTER

12-1

Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E

OL_28731-01

Configuring Cisco NSF with SSO Supervisor

Engine Redundancy

This chapter describes how to configure supervisor engine redundancy using Cisco nonstop forwarding

(NSF) with stateful switchover (SSO).

Note Starting with Cisco IOS Release 12.2(52)SG, the Catalyst 4500 switch supports VRF lite NSF support

with routing protocols OSPF/EIGRP/BGP.

This chapter consists of these sections:

• About NSF with SSO Supervisor Engine Redundancy, page 12-1

• Configuring NSF with SSO Supervisor Engine Redundancy, page 12-9

• Cisco High Availability Features in Cisco IOS XE 3.1.0SG, page 12-17

Note For complete syntax and usage information for the switch commands used in this chapter, see the Cisco

Catalyst 4500 Series Switch Command Reference and related publications at this location:

http://www.cisco.com/en/US/products/hw/switches/ps4324/index.html

If a command is not in the Catalyst 4500 Series Switch Command Reference, you can locate it in the

Cisco IOS library. See the Cisco IOS Command Reference and related publications at this location:

http://www.cisco.com/en/US/products/ps6350/index.html

About NSF with SSO Supervisor Engine Redundancy

These sections describe supervisor engine redundancy using NSF with SSO:

• About Cisco IOS NSF-Aware and NSF-Capable Support, page 12-2

• NSF with SSO Supervisor Engine Redundancy Overview, page 12-3

• SSO Operation, page 12-4

• NSF Operation, page 12-4

• Cisco Express Forwarding, page 12-5

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