Rebooting a modular chassis
A chassis reboot brings up the system in sequential phases. First, software services are launched on the management modules and brought up to the active state. Then, the line cards are powered on and initialized. Software services are launched on the line cards and brought up to the active state. When the line card initialization reaches the final state, the chassis is ready to accept user commands from the CLI interface.
During the boot process system initialization, configuration data (default or user-defined) are applied to the switch through configuration replay. For more information, refer to Managing configurations across redundant management modules.
- On a modular chassis, the reboot and the fastboot commands only reboot the management module on which the command is executed. If you log in to the switch IP address and execute one of these commands, only the active management module reboots and POST is bypassed.
- The reload system command performs a "cold reboot" (power off and restart) of the entire chassis. If the power-on self-test (POST) is enabled, POST is executed when the system comes back up.