Diagnosing with the LEDs

This section describes LED patterns on the switch that indicate problem conditions for general switch operation troubleshooting.

  1. Check the table for the LED pattern you see on the switch.

  2. Refer to the corresponding diagnostic tip.

Table 1: LED error indicators for 8320
Global status Port LED Diagnostic tip
Off with power cord plugged in N/A 1
Solid amber N/A 2
Slow flash amber N/A 3
Slow flash amber Slow flash amber1 4
Solid green Off with cable connected 5
Solid green On, but the port is not communicating 6
1

The flashing behavior is an on/off cycle approximately once every 1.6 seconds.

Table 2: LED error indicators for 8325
PS1/PS2 LEDs Global Status Fan Port LED Diagnostic Tip
Off with power cords plugged in - - - 1
On amber1 Flashing amber - - 2
On green Flashing amber On amber - 3
On green Flashing amber - Flashing amber 4
On green On green - Off with cable connected 5
On green On green - On, but the port is not communicating 6
1

Either the PS1 or PS2 LED is on amber, but not both.

Table 3: Diagnostic tips
Tip Problem Solution
1

Both switch power supplies are not plugged into an active AC power source.

Verify the AC power source works by plugging another device into the outlet.

Or try plugging the power supplies into different outlets or try different power cords.

If the problem is still not resolved, both power supplies may be faulty.

2

One of the power supplies is not plugged into an active A power source, or the power supply may have failed.

Verify that the power cord is plugged into an active power source and to the power supply. Make sure that the connections are snug.

Try power cycling the switch by unplugging and plugging the power cord back into the other working power supply.

If the PS1/PS2 LED is still not on, verify the AC power source works by plugging another device into the outlet or try a different power cord.

If the power source and power cord are OK and this condition persists, the switch power supply may have failed. Call your Hewlett Packard Enterprise-authorized network reseller, or use the electronic support services from Hewlett Packard Enterprise to get assistance.

3

One of the switch fan assemblies may have failed.

Try disconnecting power from the switch and wait a few moments. Then reconnect the power to the switch and check the LEDs again If the error indication reoccurs, one of the fan assemblies has failed. If the ambient temperature does not exceed normal room temperature, the switch may continue to operate under this condition; but for best operation, replace the fan assembly. Call your Hewlett Packard Enterprise-authorized network reseller, or use the electronic support services from Hewlett Packard Enterprise to get assistance.

4

The network port for which the LED is flashing has experienced a self-test or initialization failure.

Try power cycling the switch. If the fault indication reoccurs:

  • There may be a port configuration mismatch where a 10G transceiver is installed in a port configured for 25G, or the reverse.

  • A 10GBase-T transceiver may be installed in an incompatible port. Only ports 1, 2, 4, 5, 7, 8, 10, and 11 support 10GBase-T transceivers.

  • The transceiver may have failed.

  • The switch port may have failed.

Check the switch Event Log and show interface command output for indication of the fault condition.

If the port is an SFP+/SFP28 transceiver or QSFP+/QSFP28 transceiver, verify that it is one of the transceivers supported by the switch. Unsupported or unrecognized transceivers will be identified with this fault condition. For a list of supported transceivers, see the ArubaOS-Switch and ArubaOS-CX Transceiver Guide in the Hewlett Packard Enterprise Information Library.

The transceivers are also tested when they are "hot-swapped" - installed or changed while the switch is powered on.

To verify that the port has failed, remove and reinstall the transceiver without powering off the switch. If the port fault indication reoccurs, you will have to replace the transceiver. Check the event log to see why the transceiver failed.

To get assistance, call your Hewlett Packard Enterprise-authorized network reseller, or use the electronic support services from Hewlett Packard Enterprise.

5

The network connection is not working properly.

Try the following procedures:
  • For the indicated port, verify that both ends of the cabling, at the switch and the connected device, are connected properly.

  • Verify that the connected device and switch are both powered on and operating correctly.

  • Verify that you have used the correct cable type for the connection:
    • For fiber-optic connections, verify that the transmit port on the switch is connected to the receive port on the connected device and that the switch receive port is connected to the transmit port on the connected device.

    • The cable verification process must include all patch cables from any end devices, including the switch, to any patch panels in the cabling path.

  • Verify that the port has not been disabled through a switch configuration change. Use the console interface or, if you have configured an IP address on the switch, use the web browser interface to determine the state of the port and re-enable the port if necessary.

  • Verify that the switch port configuration matches the configuration of the attached device. For example, if the switch port is configured as “Full-duplex”, the port on the attached device also MUST be configured as “Full-duplex”. If the configurations do not match, the results could be an unreliable connection, or no link at all.

  • If the other procedures do not resolve the problem, try using a different port or a different cable.

6

The port may be improperly configured, or the port may be in a “blocking” state by the normal operation of the Spanning Tree, LACP, or IGMP features.

Use the switch console to see if the port is part of a dynamic trunk (through the LACP feature), if Spanning Tree is enabled on the switch, and if the port may have been put into a “blocking” state by those features. The show lacp interfaces command displays the port status for the LACP feature; the show spanning tree command displays the port status for Spanning Tree.

Also check the Port Status screen using the show interfaces command to see if the port has been configured as “disabled”.

Other switch features that may affect the port operation include VLANs, IGMP, and port group settings. Use the switch console to see how the port is configured for these features.

Ensure that the device at the other end of the connection is indicating a good link to the switch. If it is not, the problem may be with the cabling between the devices or the connectors on the cable.