Diagnosing with the LEDs
This section describes LED patterns on the switch that indicate problem conditions for general switch operation troubleshooting.
Check the table for the LED pattern you see on the switch.
Refer to the corresponding diagnostic tip.
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 |
The flashing behavior is an on/off cycle approximately once every 1.6 seconds.
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 |
Either the PS1 or PS2 LED is on amber, but not both.
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:
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:
|
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
Also check the Port Status screen using the
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. |