Port Failure - HP 7500 Series Installation Manual

When the LPU operates correctly, the RUN LED flashes, and the ALM LED is off. When the RUN LED is off,
the LPU fails. To troubleshoot the LPU:
1. Verify that the MPU is operating correctly. For more information, see
2. Verify that the console terminal prompts that the software version is incompatible with the LPU in
the current slot. An LPU is compatible with a specific software version. If the software version is
incompatible with the LPU, upgrade the software to a compatible version.
3. Calculate the overall power consumption, and make sure your power supply can provide enough
power. For more information, see
4. Verify that the LPU is fully seated. You can unplug the LPU, plug it again, and press the ejector
levers inward until the ejector levers touch the panel tightly.
5. If the switch has empty LPU slots, plug the LPU into an empty LPU slot, and verify that the LPU can
work correctly.

Port failure

The ports provided by MPUs and LPUs all have corresponding LEDs. When a port connected to the
network operates correctly, the corresponding LED is on.
NOTE:
A management Ethernet port, SFP+ port, or XFP port each has two LEDs, LINK and ACT. The LED
mentioned in this section for such a port refers to the LINK LED. Each port of any other type has only one
LED.
If the LED of a port connected to the network is off, the port or the connecting cable might fail. To
troubleshoot the port:
Verify that the MPU or LPU where the port resides is operating correctly. For more information, see
1.
"MPU
2. Examine the cable connection of the port. For how to correctly connect the cable to an Ethernet
port with an RJ-45 connector or a fiber port, see
3. Verify that the cable is not broken. Use the cable to connect two ports of the same type that operate
correctly. If the LEDs of the two ports are on, the cable is normal. Otherwise, the cable fails. Use
a compliant cable to connect the port. For more information about the compliant cables, see
"Appendix D
4. If the port uses a transceiver module, verify that the port type is compatible with the transceiver
module and that the transceiver module is compatible with the cable. For more information, see
"Appendix B FRUs and compatibility
5. If the port uses a transceiver module, make sure the current transceiver module operates correctly
by replacing a normal transceiver.
6. If the port is a combo interface (which contains a fiber port and a copper port), make sure the port
used for connection is activated for the combo interface. Then, use the undo shutdown command
to activate the port, and check the LED. For more information, see
maintenance."
failure" or "LPU failure."
Cables."
"Appendix B FRUs and compatibility
"Connecting your switch to the
matrixes."
77
"MPU failure."
matrixes."
network."
"Hardware management and