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Chapter 48
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 on page 624
Displaying Redundant HCM Hardware Information on
page 625
show chassis hardware
Displaying HCM Status and Mastership on page 625
1. Check the HCM LEDs on page 625 Look at the LEDs on the HCM faceplate. The master HCM LED
light flashes blue.
2. Check the HCM Environmental Status on page 626
show chassis environment hcm
Switching HCM Mastership on page 627
request chassis routing-engine master switch
Displaying HCM Alarms on page 628
show chassis alarms
Verifying HCM Failure on page 628
show chassis routing-engine
Performing a Swap Test on an HCM on page 629
See “Performing A Swap Test” on page 438.
Returning an HCM on page 629
Find the serial number ID label, then see “Return the Failed
Component” on page 86. See also the M10i Internet Router
Hardware Guide.
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