! 523
Chapter 39
Monitoring Redundant Cooling System
Components
You monitor and maintain redundant cooling system components to keep an
acceptable operating temperature for the router chassis and its components. (See
Table 113.)
Table 113: Checklist for Monitoring Redundant Cooling System Components
Monitor Redundant Cooling System Component Tasks Command or Action
Understanding Redundant Cooling System Components on page 524
! M5 and M10 Router Redundant Cooling System Components on page 525
! M7i Router Redundant Cooling System Components on page 526
! M10i Router Redundant Cooling System Components on page 527
! M20 Router Redundant Cooling System Components on page 527
! M40 Router Redundant Cooling System Components on page 529
! M40e and M160 Router Redundant Cooling System Components on page 531
! M320 Router Redundant Cooling System Components on page 533
! T320 Router Redundant Cooling System Components on page 534
! T640 Routing Node Redundant Cooling System Components on page 537
Displaying Redundant Cooling System Components on
page 539
show chassis environment
Checking the Redundant Cooling System Status on
page 541
See “Checking the Cooling System Status” on page 267.
Checking the Redundant Cooling System Alarms on
page 541
See “Checking the Cooling System Alarms” on page 269 and
“Display the Current Router Alarms” on page 61.
Removing a Cooling System Component on page 541
See “Replacing a Cooling System Component” on page 273.
Returning Redundant Cooling System Components on
page 541
See “Return the Failed Component” on page 86, or follow the
procedure in appropriate router hardware guide.
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