   Diagnostic LEDs



Diagnostic LEDs
===============


LNK:
----
   
Indicates the adapter is connected to a hub or switch and
is receiving link pulses. If the LNK light isn't on,
check all connections at the adapter and the hub. Make
sure the hub is transmitting at the correct speed and the
drivers are loaded.
 
Also, make sure you have the correct wiring configuration
for the adapter to the hub connection. Some hubs require
a crossover cable rather than a straight-through cable.

Note that this LED will be on when running the
diagnostics loopback test without a cable attached to the
adapter.


ACT:
----

Server adapters: indicates activity on the network. It doesn't
always mean there is send/receive activity on this adapter. If
the ACT light isn't on or blinking, make sure the hub and network
are operating and the drivers are loaded.

Management adapters: the ACT light is on or blinking only when
direct packets or broadcast packets for this adapter are received.
When sending packets, the ACT light is also active due to network
acknowledgements received.


100:
----

Indicates 100 Mbps when on, and 10 Mbps when off.

Note that 100 LED may stay on if link is broken during or after
activity.
