QUOTE(project722 @ Jan 29 2005, 01:54 PM)
A green link light should be on at all times. Even when not sending data. A link light is just what it is...a link signal. It means everything's ok to send and recieve data on the wire. When data is actually being sent, you'll get an activity light also, usually orange.
Dude you are so wrong. You are only gonna confuse him.
Basic Networking 101:
There are two led lights on all network cards, also referred to as a NIC (Network Interface Card).
Light One; Green in color. Light two; Multi-color.
Light One refers to LAN (Local Area Network) connection. This light is only lit when the NIC is able to establish a link with another network device, such as another NIC, hub, router, switch, etc. Otherwise this light will remain off.
Light Two refers to LAN activity. This light will light up every time there is data sent between network devices. You will see it typically flash randomly. Color of the light is dependant of the NIC, some will flash orange/red, others orange/green. The color changes typically indicates connection rate. One color for 10mbps, the other for 100mbps.
PC's that use a feature called Wake-On-LAN, will sometimes have a solid green link light always on. Regardless of connection.
DHCP Server requests can flash the activity light randomly when looking for an IP address, regardless of having no link with the LAN. (No Link light)
When working on an XBOX, there will be NO Link light active with NO cable plugged in to it. PERIOD.
When troubleshooting, only concern yourself with the POWER button light.