Maintaining The T4000 Control Boards; Maintaining T4000 Fpcs - Juniper T4000 Hardware Manual

Maintaining the T4000 Control Boards

Purpose
Action
Related
Documentation

Maintaining T4000 FPCs

Purpose
Copyright © 2018, Juniper Networks, Inc.
Maintaining the T4000 Host Subsystem on page 335
Maintaining the T4000 Control Boards on page 337
Troubleshooting the T4000 Routing Engines on page 355
For optimum router performance, verify the condition of the control boards.
On a regular basis:
Check the LEDs on the control board faceplate. During normal operations:
The green LED on the control board faceplate is lit.
OK
The yellow FAIL LED on the control board faceplate is not lit. if the
"Troubleshooting the T4000 Host Subsystems" on page 354
the T4000 Control Boards" on page
Check the host subsystem LEDs (
normal operations:
The green host subsystem
The red host subsystem
If the red HOST0 FAIL
Subsystems" on page 354
page 356.
Use the
show chassis environment cb
boards. During normal operations, the control board is
T4000 LCC-CB Control Board LEDs on page 31
Maintaining the T4000 Host Subsystem on page 335
Maintaining the T4000 Routing Engines on page 336
For optimum router performance, verify the condition of the FPCs. The router can have
up to eight FPCs mounted vertically in the FPC card cage at the front of the chassis.
356.
and
HOST0 HOST1
OK LED on the craft interface is lit.
LED on the craft interface is not lit.
FAIL
or HOST1 FAIL LED is lit, see
and "Troubleshooting the T4000 Control Boards" on
command to check the status of the control
Chapter 34: Maintaining Components
FAIL is lit, see
and "Troubleshooting
) on the craft interface. During
"Troubleshooting the T4000 Host
online .
337