Allied Telesis X8112 - page 192

Chapter 9: Troubleshooting
192
Try installing the card in a different slot. If it works in the new slot,
the problem is with the previous slot.
Try installing the card in a different chassis. If it works in the new
chassis, the problem is with the previous chassis. If the problem
persists, the problem is with the card.
You can obtain card status information with the SwitchBlade x8112
Management Software and the SHOW CARD command, show in
Figure 132 on page 184: