Understanding Leds; Port Leds - Intel NetportExpress 10 PCLA2152B User Manual

NOTE
If you don't see the Green LED
light immediately, wait. Estab-
lishing a link to a device can
take up to six seconds.
LED Status
Green Solid
Blinking
Off
Amber Solid
Steady blink and Status LED Hub speed and device speed don't match.
on solid
Steady blink and Status LED Out of specification cabling or a port hardware
blinking
Erratic blink and Status LED Port was partitioned (auto-disabled). See below.
on solid
Off
10

Understanding LEDs

Port LEDs

The LEDs above a port provide information about the port's
configuration and status.
Green LED
(left side)
Meaning
Port has a link.
Receive activity detected on port.
No link detected.
Port is disabled by management (not applicable
without optional Management Module).
problem. Try a different cable.
Normal. No link detected if Green LED is also off.
Partitioned ports
A port is automatically disabled by the hub when a serious error
occurs, such as a series of more than 64 collisions on a single packet.
Once the hub sees a valid packet from the device or is able to transmit
a packet from the port, the hub automatically unpartitions the port.
Connected devices are usually not affected by a partitioned port
because the port is unpartitioned so quickly.
Usually a partitioned port signals an overloaded network or a
malfunctioning device on the network. Alleviate an overloaded
network by segmenting the network so that fewer devices share a
fixed amount of bandwidth. Do this by adding a switch.
Amber LED
(right side)