Introducing the HP ProCurve 10/100 Hubs
Front of the Hubs
LEDs for the 10/100Base-T Hubs
The following table describes the hub's LED displays.
Hub Status LED State
Act (activity -
Col (collision -
Slow Blink* The port has been autopartitioned due to excessive
* The slow blink behavior is a regular pulse, once every 1.6 seconds, approximately.
The fast blink behavior is a regular pulse, once every 0.8 seconds, approximately.
The hub is receiving power.
The hub is NOT receiving power.
The normal state. Indicates that there are no fault conditions
on the hub.
The hub is in self test after being powered on or reset. If on
for a prolonged time, the hub has failed its self test. See
"Diagnosing with the LEDs" in chapter 3, "Troubleshooting"
for more information.
The hub is receiving packets on at least one of its ports. If it
appears to be on continuously, network traffic is excessive.
The hub is not receiving packets from any attached device.
A network collision has been detected on any of the hub
ports. If the LED is on solid, a heavy collision rate is
Collisions are not occurring on the network.
The port detects an attached device.
The port has not detected another device.
A security violation has been detected on the port (Hub 12M
and Hub 24M only)
The port is operating at 100 Mbps.
The port is operating at 10 Mbps.
(This LED is meaningful only if the Link LED is lit for the port.)