Main-Cpu - Cisco Catalyst 4500 Series Command Reference Manual

Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches

main-cpu

To enter the main CPU submode and manually synchronize the configurations on the two supervisor
engines, use the main-cpu command.
Syntax Description This command has no arguments or keywords.
Defaults
This command has no default settings.
Command Modes
Redundancy mode
Command History Release
12.1(12c)EW
Usage Guidelines
The main CPU submode is used to manually synchronize the configurations on the two supervisor
engines. From the main CPU submode, use the
of the configuration files in NVRAM.
After you enter the main CPU submode, you can use the
Note
synchronize the configuration between the primary and secondary route processors based on the primary
configuration. In addition, you can use all of the redundancy commands that are applicable to the main
CPU.
Examples
This example shows how to reenable the default automatic synchronization feature using the auto-sync
standard command to synchronize the startup-config and config-register configuration of the active
supervisor engine with the standby supervisor engine. The updates for the boot variables are automatic
and cannot be disabled.
Switch(config)# redundancy
Switch(config-red)# main-cpu
Switch(config-r-mc)# auto-sync standard
Switch(config-r-mc)# end
Switch# copy running-config startup-config
Switch#
Related Commands Command
auto-sync
OL-27596 -01
main-cpu
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
(Catalyst 4507R only).
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
auto-sync command to enable automatic synchronization
auto-sync command to automatically
Description
Enables automatic synchronization of the configuration
files in NVRAM.
main-cpu
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