Displaying Redundant HCM Hardware Information ! 625
Chapter 48: Monitoring Redundant HCMs
Displaying Redundant HCM Hardware Information
Action To display the redundant HCM hardware information, use the following JUNOS
software command-line interface (CLI) command:
user@host> show chassis hardware
Sample Output
user@host>
show chassis hardware
Hardware inventory:
Item Version Part number Serial number Description
Chassis 31875 M10i
Midplane REV 04 710-008920 CE1044 M10i Midplane
Power Supply 0 Rev 05 740-008537 QE16425 AC Power Supply
Power Supply 1 Rev 05 740-008537 QE16644 AC Power Supply
HCM slot 0 REV 01 710-010580 CC7625 M10i HCM
HCM slot 1 REV 01 710-010580 CC7629 M10i HCM
Routing Engine 0 REV 09 740-009459 1000513670 RE-5.0
Routing Engine 1 REV 09 740-009459 1000513630 RE-5.0
What it Means The command output shows that on this M10i router, two HCMs are installed in
slots
0 (HCM0) and 1 (HCM1) along with their companion Routing Engines. By
default, the HCM in the slot labeled
HCM0 is the master.
Displaying HCM Status and Mastership
By default, the HCM in the slot labeled HCM0 is the master.
Steps To Take To display the redundant HCM status and mastership, follow these steps:
1. Check the HCM LEDs on page 625
2. Check the HCM Environmental Status on page 626
Step 1: Check the HCM LEDs
Action To see which HCM is functioning as master, look at the LEDs on the HCM faceplate.
On the HCM faceplate, two LEDs indicate HCM status—a green
PWR LED and a blue
MSTR LED. Table 132 describes the LED states.
Table 132: HCM LEDs
Label Color State Description
PWR Green On steadily HCM is functioning normally.
Blinking HCM is starting up.
MSTR Blue On steadily HCM is master.
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