How do I configure register on the Cisco switch / module?

I am working with a Cisco 6500 series switch. When I input "SWITCH# REMOTE COMMAND SWITCH SHOW BOOT", I see that the config register is set to 0x2100.

How do I modify the config register on the remote switch / module?

The solution is to reconfigure the configuration register and reload the system.

Complete these steps:

1 In global configuration mode, issue the config-register 0x2102 command, and set the configuration register to 0x2102 for both the RP and the SP.

6500_IOS# config t

Enter configuration commands, one per line. End with CNTL/Z.

6500_IOS(config)# config-register 0x2102

6500_IOS(config)# end

2 To verify the configuration register value at the next reload, issue the show bootvar command.

6500_IOS# show bootvar

BOOT variable = slot0:c6sup12-ps-mz.121-13.E14,1

CONFIG_FILE variable =

BOOTLDR variable =

Configuration register is 0x2102

3 To verify that the configuration register on the SP also changed, issue the remote command switch show bootvar command.

6500_IOS# remote command switch show bootvar

6500_IOS-sp#

BOOT variable = slot0:c6sup12-ps-mz.121-13.E14,1

CONFIG_FILE variable =

BOOTLDR variable =

Configuration register is 0x2 (will be 0x2102 at next reload)

4 Reload the switch for the new SP configuration register setting to take effect.

6500_IOS# reload

Note: You can issue the copy running-config startup-config command at this point to save the configuration. However, this step is not necessary because the configuration register setting is not part of the startup or running configuration.

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