Supervisor Engine 7L-E - Cisco Catalyst 4500 Series Configuration Manual

Configuring
RPR and SSO on Supervisor Engine 7-E and

Supervisor Engine 7L-E

Catalyst 4500 series switches allow a standby 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 and RPR is 15.0(1r)SG1.
Note
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 10-2
•
About Supervisor Engine Redundancy Synchronization, page 10-5
•
Supervisor Engine Redundancy Guidelines and Restrictions, page 10-5
•
Configuring Supervisor Engine Redundancy, page 10-7
•
Performing a Manual Switchover, page 10-12
•
• Performing a Software Upgrade, page 10-12
• Manipulating Bootflash on the Standby Supervisor Engine, page 10-14
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 Catalyst 4500 Series Switch Cisco IOS Command Reference
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
10
Using
Chapter 11, "Configuring Cisco NSF
10-1