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For further description of the command output, see the
Reference.
SEE ALSO
MX2008 Modular Interface Card Description | 172
MX2008 Modular Interface Card LEDs | 183
Replacing an MX2008 MIC | 378
Maintaining Cables That Connect to MX2008 MPCs or MICs | 485
Troubleshooting the MX2008 MPCs
Problem
Description: The following LEDs indicate a problem with an MPC:
The red FAIL LED above the MPC is lit.
The green OK LED above the MPC is not lit.
Solution
To troubleshoot an MPC:
1. Monitor the green LED labeled OK above the MPC on the craft interface as soon as an MPC is seated
in an operating router.
NOTE:
The Routing and Control Board (RCB) downloads the software to the MPC under two
conditions: The MPC is present when the RCB boots Junos OS, and the MPC is installed and
requested online through the CLI or the push button on the front panel. The MPC then runs
diagnostics, during which the OK LED blinks. When the MPC is online and functioning
normally, the OK LED lights green steadily.
2. Look at the display on the craft interface to check the status of the MPC and the MICs that are plugged
into it.
3. Verify that the MPC is properly seated in the top and bottom backplanes of the adapter card (ADC).
Check that each knob has been turned clockwise and is tight.
Junos OS System Basics and Services Command
512
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