HP PS1810-8G Installation And Getting Started Manual page 42

Tip Problem
➋
A switch hardware
failure has occurred.
All the LEDs will stay
on indefinitely.
➌ The network port for
which the Link LED is
blinking has
experienced a self test
or initialization failure.
➍ The network
connection is not
working properly.
➎
A PoE power sourcing
equipment (PSE)
device is connected to
port 1 on an HP
PS1810-8G Switch, but
PoE power is not being
supplied.
Try power cycling the switch. If the fault indication reoccurs, the switch might have
failed. Call your HP authorized network reseller, or use the electronic support
services from HP to get assistance.
Try power cycling the switch. If the fault indication reoccurs, the switch port might
have failed. To confirm, try a different port that appears to be good. Call your HP
authorized network reseller, or use the electronic support services from HP to get
assistance.
If the port is an SFP, verify that it is one of the SFPs supported by the switch.
Unsupported SFPs are identified with this fault condition. The supported SFPs are
listed in Chapter 1, "Switch Overview" on
switch when they are "hot-swapped"— installed or changed while the switch is
powered on.
To verify that the port has failed, try removing and reinstalling the SFP without
powering off the switch. If the port fault indication reoccurs, replace the SFP.
Try the following steps:
• For the indicated port, verify that both ends of the cabling, at the switch and the
connected device, are secure.
• Verify that the connected device and the switch are both powered on and are
operating correctly.
• Verify that the connected devices comply with the appropriate IEEE 802.3 stan-
dard, including transmission of the Link signal.
• If these steps do not resolve the problem, try using a different port or a different
network cable.
Try the following steps:
• Make sure that the PSE device is powered on.
• Make sure that the network cable between the PSE and the switch is fully
connected at both ends.
• On the PSE, make sure that the port being used to provide the PoE power has
appropriate PoE capabilities and priority, and that PoE delivery is enabled on that
port.
• If these steps do not resolve the problem, try using a different network cable.
Diagnosing with the LEDs
Solution
page 1-3. The SFPs are also tested by the
Troubleshooting
4-3