Supervisor Engine 6L-E - Cisco Catalyst 4500 Series Configuration Manual

Configuring
RPR and SSO on Supervisor Engine 6-E and

Supervisor Engine 6L-E

Catalyst 4500 series switches allow a redundant supervisor engine to take over if the active supervisor
engine fails. In software, supervisor engine redundancy is enabled by running the redundant supervisor
engine in route processor redundancy (RPR) or stateful switchover (SSO) operating mode.
The minimum ROMMON requirement for running SSO is Cisco IOS Release 12.1(20r)EW1 or
Note
Cisco IOS Release 12.2(20r)EW1.
This chapter describes how to configure supervisor engine redundancy on the Catalyst 4507R and
Catalyst 4510R switches.
For information on Cisco nonstop forwarding (NSF) with SSO, see
Note
with SSO Supervisor Engine Redundancy."
This chapter contains these major sections:
• About Supervisor Engine Redundancy, page 9-2
• About Supervisor Engine Redundancy Synchronization, page 9-4
Supervisor Engine Redundancy Guidelines and Restrictions, page 9-5
•
Configuring Supervisor Engine Redundancy, page 9-7
•
Performing a Manual Switchover, page 9-12
•
Performing a Software Upgrade, page 9-13
•
Manipulating Bootflash on the Redundant Supervisor Engine, page 9-14
•
Note For complete syntax and usage information for the switch commands used in this chapter, first look at
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 the command is not found in the Catalyst 4500 Series Switch Command Reference, it will be found in
the larger Cisco IOS library. Refer to the Cisco IOS Command Reference and related publications at this
OL-25340-01
C H A P T E R
Supervisor Engine Redundancy
Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
9
Using
Chapter 11, "Configuring Cisco NSF
9-1