Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

 

Troubleshooting the T1600 Host Subsystems

 

Problem:

Description:

The following alarms and LEDs indicate a problem with a host subsystem control board and Routing Engine:

  • A red alarm indicates that the host subsystem has been removed.

  • A yellow alarm indicates that the host subsystem has failed.

  • The red host subsystem FAIL LED on the craft interface is lit.

  • The green host subsystem OK LED on the craft interface is not lit.

In Table 1, 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 1: T1600 Chassis Alarm Messages for Host Subsystems

Alarm Type

LCD Message

CLI Message

Red

Host host-number Removed

Host host-number Removed

Yellow

Host host-number Failure

Host host-number Failure

Solution

To troubleshoot the host subsystems:

  1. Check the LEDs on the faceplate of each control board and Routing Engine.
  2. Check the LEDs on the craft interface.
  3. Use the CLI to check for alarms.
    • Standalone T1600 router—Issue the show chassis alarms command to view the alarms.

    • T1600 router in a routing matrix—Issue the show chassis alarms lcc lcc-number command to view the alarms.