Juniper PTX5000 Hardware Manual page 624

Problem
Description
The following alarms and LEDs indicate a problem with a host subsystem Control Board or Routing
Engine:
• Table 91 on page 606
• Table 92 on page 607
Solution
To troubleshoot the host subsystems:
1. Check the LEDs on the craft interface.
If the red HOST0 FAIL or HOST1 FAIL LED is lit, look at the LCD on the craft interface to get more
information about the cause of the problem.
2. Check the LEDs on the faceplate of each Control Board and Routing Engine. See
the PTX5000 Control Boards" on page 611
page 607.
3. Use the CLI to check for alarms. Issue the show chassis alarms command to view the alarms.
In Table 91 on page 606, the text in the column labeled "LCD Message" appears in the display of the
craft interface. The text in the column labeled "CLI Message" appears in the output from the
show chassis alarms command.
Table 91: Troubleshooting Host Subsystem Alarm Messages
Alarm Type LCD Message
host-number
Red Host
Removed
host-number
Yellow Host
Failure
lists the alarms.
lists the LEDs.
and
CLI Message
host-number
Host
Removed
host-number
Host
Failure
"Troubleshooting the PTX5000 Routing Engines" on
Condition
The Routing Engine or
Control Board has been
removed.
The Routing Engine or
Control Board has been
failed.
"Troubleshooting
Recovery
Reinstall the Routing
Engine and Control
Board.
Replace the Routing
Engine or Control
Board.
606