Table 161: Checklist for Monitoring Redundant HCMs (continued)
Command or ActionMonitor Redundant HCM Tasks
show chassis routing-engine
See “Perform A Swap Test” on page 538.
“Verify HCM Failure” on page 740
Find the serial number ID label, then see “Return
the Failed Component” on page 116 and “Locate
the HCM Serial Number ID Label” on page 541.
Return an HCM
Related
Documentation
Redundant HCMs Overview on page 736•
Redundant HCMs Overview
You monitor and maintain HCMs on the M10i router so that they can monitor and control
router components, control component power-up and power-down, signal which Routing
Engine is master, display alarm conditions, and take PICs offline.
Two HCMs are installed in an M10i router. Each HCM works with a companion Routing
Engine.
Two HCMs are installed into the midplane from the front of the chassis, as shown in
Figure 342 on page 736. The master HCM performs all functions and provides PIC removal
buttons for the first Flexible PIC Concentrator (FPC). The standby HCM provides PIC
removal buttons for the second FPC. The HCM in the slot labeled HCM0 is paired with
the Routing Engine in the slot labeled RE0. Likewise, the HCM in the slot labeled HCM1 is
paired with the Routing Engine in the slot labeled RE1. By default, the HCM in the slot
labeled HCM0 is the master.
Figure 342: Redundant HCMs
When HCM mastership changes because of failure, Routing Engine mastership also
changes.
Copyright © 2012, Juniper Networks, Inc.736
M Series and T Series Routers Monitoring and Troubleshooting Guide
To Next Page
Loading...
Need help?
General
