Maintaining The M40E Pcgs; Maintaining M40E Sfms - Juniper M40E Hardware Manual

Maintaining the M40e PCGs

Purpose
Action
Related
Documentation

Maintaining M40e SFMs

Purpose
Copyright © 2010, Juniper Networks, Inc.
For optimal performance, verify the condition of the Packet Forwarding Engine Clock
Generators (PCGs).
The router has two PCGs installed in the slots labeled
chassis, as shown in "M40e Chassis Description" on page 8. To maintain the PCGs,
regularly:
Check the LEDs on the PCG faceplates. The green LED labeled
the PCG is functioning normally. The blue LED labeled
master PCG. For more information, see "M40e PCG LEDs" on page 19.
Issue the CLI
show chassis environment pcg
As shown in the sample output, the master PCG is designated
and the standby PCG
Online - Standby
user@host> show chassis environment pcg
PCG 0 status:
State
Temperature
Frequency:
Setting
Measurement
Power:
3.3 V
5.0 V bias
8.0 V bias
BUS Revision
PCG 1 status:
State
Temperature
Frequency:
Setting
Measurement
Power:
3.3 V
5.0 V bias
8.0 V bias
BUS Revision
For further description of the output from the command, see the Junos OS System
Basics and Services Command Reference.
M40e Packet Forwarding Engine Clock Generators (PCGs) Description on page 18
M40e Packet Forwarding Engine Architecture on page 60
Installing a PCG in an M40e Router on page 197
Replacing a PCG in an M40e Router on page 196
For optimal performance, verify the condition of the SFMs.
Chapter 14: Maintaining M40e Router Hardware Components
PCG 0 and
MASTER
command to check the status of the PCGs.
:
Online - Master clock
40 degrees C / 104 degrees F
125.00 MHz
125.01 MHz
3274 mV
4974 mV
8183 mV
12
Online - Standby
40 degrees C / 104 degrees F
125.00 MHz
125.03 MHz
3267 mV
4993 mV
8190 mV
12
PCG 1 on the rear of the
OK lights steadily when
lights steadily on the
Online - Master clock
141