Maintaining Packet Forwarding Engine Components; Maintaining Dpcs; Maintaining Dpc Cables; Handling And Storing Dpcs - Juniper MX240 Hardware Manual

MX240 Ethernet Services Router Hardware Guide
user@host> show chassis environment cb 0
CB 0 status:
For more information about using the CLI, see the JUNOS software manuals.

Maintaining Packet Forwarding Engine Components

For instructions on maintaining Packet Forwarding Engine components, see the
following sections:

Maintaining DPCs

The router can have up to three Dense Port Concentrators (DPCs) mounted
horizontally in the DPC card cage at the front of the chassis, as shown in
Figure 1 on page 6. To maintain DPCs, perform the following procedures regularly:
72
Maintaining Packet Forwarding Engine Components
State
Temperature Intake
Temperature Exhaust A
Temperature Exhaust B
Power
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
5.0 V
1.2 V Rocket IO
1.5 V Rocket IO
1.8 V RLDRAM
I2C Slave Revision
Maintaining DPCs on page 72
Maintaining DPC Cables on page 74
Handling and Storing DPCs on page 74
Check the LEDs on the craft interface directly above each DPC slot. The green
LED labeled OK lights steadily when a DPC is functioning normally. For more
information, see "DPC LEDs" on page 20.
Check the OK/FAIL LED on the DPC. For more information, see Table 7 on page
10 and Table 8 on page 10. If the DPC detects a failure, the DPC sends an alarm
message to the Routing Engine.
Issue the CLI
show chassis fpc
As shown in the sample output, the value
indicates that the DPC is functioning normally:
user@host> show chassis fpc
Temp CPU Utilization (%)
Slot State (C)
0 Online 41
1 Online 43
2 Online 43
Online
66 degrees C / 150 degrees F
67 degrees C / 152 degrees F
73 degrees C / 163 degrees F
1153 mV
1417 mV
1704 mV
2375 mV
3138 mV
4763 mV
1160 mV
1408 mV
1717 mV
15
command to check the status of installed DPCs.
Online in the column labeled
Memory
Total Interrupt DRAM (MB) Heap
9 0 1024
5 0 1024
11 0 1024
State
Utilization (%)
Buffer
15 57
16 57
16 57