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OL-4923-01 B0
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Ensuring That Both RSPs Contain the Same Configuration File, page 27
(both implementations)
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Ensuring that Both RSPs Contain the Same System Image, page 27
(simple hardware backup only)
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Ensuring that Both RSPs Contain the Same Microcode Image, page 29
(simple hardware backup
only)
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Specifying Different Startup Images for the Active and the Standby RSPs, page 30
(software error
protection only)
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Manually Setting Environment Variables on the Standby RSP, page 37
(both implementations)
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Automatically Setting Environment Variables on the Standby RSP, page 37
(both implementations)
Note
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.
Specifying the Default Standby RSP2
Your view of the environment is always from the active RSP2 perspective, you must define a default
standby RSP2. The router uses the default standby information when booting.
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If a system boot is due to powering up the router or using the reload command, then the specified
default standby is the standby RSP2.
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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 RSP2 the standby RSP2.
To define the default standby RSP2, use the following commands in
Table 4
in privileged EXEC mode:
Upon the next system reboot, the above changes take effect (if both RSP2 cards are operational). Thus,
the specified default standby becomes the standby RSP2 card. The other RSP2 card takes over control
of the system and controls all functions of the router.
If you do not specifically define the default standby RSP2, the RSP2 card located in the higher number
processor slot is the default standby. On the Cisco 7507, processor slot 3 contains the default standby
RSP. On the Cisco 7513, processor slot 7 contains the default standby RSP.
The following example sets the default standby RSP2 to processor slot 2 on a Cisco 7507:
Router# configure terminal
Router (config)# slave default-slot 2
Ctrl-Z
Router# copy running-config startup-config
Table 4
Defining the Default Standby RSP
Command
Description
Step 1
Router# configure terminal
Enters the configuration mode from the terminal.
Step 2
Router(config)# slave default-slot
processor-slot-number
Defines the default standby RSP2 (or RSP4/4+).
Step 3
Router(config)# end
Exits configuration mode.
Step 4
Router# copy system: running-config nvram:startup-config
Saves this information to your startup
configuration.