Network & Internet Communications Guide
www.hp.com
1–5
Network Communications
■
Operating Speed light—illuminates during 1000 Mbps or
100 Mbps operation. The color of the light identifies the
operating speed.
Some NICs include only two network status lights where link
(light on) and activity (light blinking) are indicated by one light and
1000-Mbps or 100-Mbps operation is indicated by the second light.
The integrated NIC has two network status lights on the NIC
connector:
■
Link/Activity light—Illuminates green when physically linked to
the network and blinks on and off to indicate network activity.
■
Operating Speed light—Illuminates green when operating at
1000 Mbps, yellow when operating at 100 Mbps, and is not
illuminated when operating at 10 Mbps.
Disabling 802.3u Auto-Negotiation Capabilities
Auto-Negotiation NICs automatically determine the maximum
network operating speed and duplex capabilities of the attached
network and configure themselves on the highest common
combination. The computer begins Auto-Negotiation whenever it
obtains a valid network link, or when the NIC driver is loaded.
In addition to determining the network operating speed, the computer
determines if full-duplex is supported. Full-duplex systems can
transmit and receive information on the network simultaneously.
Half-duplex systems cannot transmit and receive simultaneously.
If necessary, you can disable the Auto-Negotiation capabilities and
force the system to operate in one mode only.
Windows 2000
1. Select
Start > Settings > Control Panel
.
2. Double-click
Network Connections
.
3. Double-click
Local Area Connection
.
4. Click
Properties
.
5. Click
Configure
.
6. Click the
Advanced
tab.
