Chapter 9: Troubleshooting a Services Router

Troubleshooting Power Management

If one or more PIMs remain offline when you power on the chassis, the combination of PIMs installed might exceed the power and heat capacity of the chassis. For information about the maximum power and heat tokens permitted for each chassis, see “Planning for Power Management” on page 72.

To bring the PIM online:

1.Check if the PIM exceeds the power and heat tokens permitted by issuing the show chassis fpc and show chassis power-ratingsCLI commands:

user@host> show chassis fpc

 

 

 

Temp

CPU Utilization (%)

Memory

Utilization (%)

 

Slot State

(C)

Total Interrupt

DRAM (MB) Heap

Buffer

0

Online

--------------------

CPU less FPC --------------------

1

Online

--------------------

CPU less FPC --------------------

2

Online

--------------------

CPU less FPC --------------------

3

Empty

 

 

 

 

 

4

Empty

 

 

 

 

 

5

Offline

------

Hardware exceeds High Power token limits

------

In this example, J-series power management has placed the PIM in slot 5 in an offline state to prevent damage. If brought online, the PIM would cause the combination of PIMs to exceed the maximum limit of 83 high-power tokens for the J2350 router.

user@host> show chassis power-ratings

Device

Low

High

Heat

 

Ratings

 

 

Power

Power

 

 

Total Tokens

83

83

83

-

FPC 1

 

6

27

21

OK

FPC 2

 

3

27

18

OK

FPC 3

 

3

27

18

OK

FPC 4

 

0

0

0

OK

FPC 5

 

2

27

2

Exceeded

Tokens Used

 

14

108

59

-

NOTE: In the show chassis power-ratingscommand output, the PIM slot number is reported as an FPC number.

The offline PIM is not powered off and continues to draw minimal power.

2.To bring the PIM online, you have the following options:

Troubleshooting Hardware Components 159

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Juniper Networks J2350 manual Troubleshooting Power Management, Troubleshooting a Services Router