Monitoring Redundant HCMs

You monitor redundant High-Availability Chassis Managers (HCMs) on the M10i router so they can work with a companion Routing Engine to provide control and monitoring functions for router components. The HCMs also display alarm status and take Physical Interface Cards (PICs) online and offline.

Table 131 provides a checklist of tasks for you to perform to monitor redundant HCMs.

Table 131: Checklist for Monitoring Redundant HCMs

Monitor Redundant HCM Tasks	Command or Action
Understanding Redundant HCMs
Displaying Redundant HCM Hardware Information	show chassis hardware
Displaying HCM Status and Mastership
Check the HCM LEDs	Look at the LEDs on the HCM faceplate. The master HCM LED light flashes blue.
Check the HCM Environmental Status	show chassis environment hcm
Switching HCM Mastership	request chassis routing-engine master switch
Displaying HCM Alarms	show chassis alarms
Verifying HCM Failure	show chassis routing-engine
Performing a Swap Test on an HCM	See Performing A Swap Test.
Returning an HCM	Find the serial number ID label, then see Return the Failed Component. See also the M10i Internet Router Hardware Guide.