JUNOS Internet Software Network Operations Guide: Hardware
626 ! Displaying HCM Status and Mastership
Step 2: Check the HCM Environmental Status
Action To check the HCM environmental status and view which HCM is functioning as
master, use the following CLI command:
user@host> show chassis environment hcm
Sample Output
user@host>
show chassis environment hcm
HCM 0 status:
State Online Master
FPGA Revision 27
HCM 1 status:
State Online Standby
FPGA Revision 27
What it Means The command output shows that both HCMs (HCM0 and HCM1) are online. HCM0 is
functioning as master, and
HCM1 is functioning as standby. The command output
also gives the Field Programmable Gate Array (FPGA) revision level. The FPGA is a
gate on the chip used in the HCM.
Alternative Action To display the status of an HCM in a certain slot, use the following CLI command:
user@host> show chassis environment hcm 1
Sample Output
user@host>
show chassis environment hcm 1
HCM 1 status:
State Online Standby
FPGA Revision 27
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