Cisco 7500 SERIES ROUTE SWITCH PROCESSOR 16 Specification Guide

The following HSA configuration examples refer to a Cisco 7513. If you have a Cisco 7507, the primary
difference is that the active and the standby RSPs are located in slots 2 and 3, respectively.

Your view of the environment is always from the active RSP perspective, and you must define a default
standby RSP. The router uses the default standby information when booting.

If a system boot is due to powering up the router or using the reload command, then the specified
default standby is the standby RSP16.

If a system boot is due to a system crash or hardware failure, then the system ignores the default
standby designation and makes the crashed or faulty RSP16 the standby RSP16.

To define the default standby RSP16, use the following commands beginning in privileged EXEC
configuration mode:

Upon the next system reboot, the above changes take effect (if both RSP16 cards are operational). Thus,
the specified default standby becomes the standby RSP16 card. The other RSP16 card takes control of
the system and controls all functions of the router.

If you do not specifically define the default standby RSP16, the RSP16 card located in the located in the
higher odd-numbered processor slot is the default standby. On the Cisco 7507 and Cisco 7507-MX,
processor slot 3 contains the default standby RSP. On the Cisco 7513 and Cisco 7513-MX, processor slot
7 contains the default standby RSP.

The following example sets the default standby RSP16 to processor slot 2 on a Cisco 7507 or
Cisco 7507-MX:

Router# configure terminal

Router(config)# slave default-slot 2

Router(config)# end

Router# copy system: running-config nvram:startup-config

With the simple hardware backup and software error protection implementation methods, you always
want your active and standby configuration files to match. To ensure that they match, turn on automatic
synchronization. In automatic synchronization mode, the active copies its startup configuration to the
standby’s startup configuration when you issue a copy command that specifies the active’s startup
configuration (nvram:startup-config) as the target.

Router# configure terminal

Enters global configuration mode.

Router(config)# slave default-slot processor-slot-number

Defines the default standby RSP16.

Router(config)# end

Exits global configuration mode and returns you to
privileged EXEC configuration mode.

Router# copy system: running-config nvram:startup-config

Saves this information to your startup
configuration.