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

CHAPTER
13-1
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
13
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 13-1
• Configuring NSF with SSO Supervisor Engine Redundancy, page 13-9
• Cisco High Availability Features in Cisco IOS XE 3.1.0SG, page 13-17
Note For complete syntax and usage information for the switch commands used in this chapter, see the
Cisco IOS Command Reference Guides for the Catalyst 4500 Series Switch.
If a command is not in the Cisco Catalyst 4500 Series Switch Command Reference , you can locate it in
the Cisco IOS Master Command List, All Releases.
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 13-2
• NSF with SSO Supervisor Engine Redundancy Overview, page 13-3
• SSO Operation, page 13-4
• NSF Operation, page 13-4
• Cisco Express Forwarding, page 13-5
• Routing Protocols, page 13-5
• NSF Guidelines and Restrictions, page 13-9