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show chassis environment ccg



(PTX5000 Packet Transport Routers only) Display environmental information about the Centralized Clock Generators (CCGs).



Display environmental information about all CCGs on the router.


(Optional) Display environmental information about the specified CCG. Replace slot with 0 or 1.

Required Privilege Level


Output Fields

Table 1 lists the output fields for the show chassis environment ccg command. Output fields are listed in the approximate order in which they appear.

Table 1: show chassis environment cb Output Fields

Field Name

Field Description


Status of the CCG: Online - Master clock , Online - Standby, or Offline. If two CCGs are installed and online, one is functioning as the primary clock, and the other is the standby clock.


Temperature of the air flowing past the CCG.


Power required and measured on the CCG. The left column displays the required power, in volts. The right column displays the measured power, in millivolts.

BUS Revision

Revision level of the generic bus device.

Sample Output

show chassis environment ccg (PTX5000)

Release Information

Command introduced in Junos OS Release 12.1.