S1836 Thunder 100
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does not provide auto-negotiation, the adapter runs at half duplex.
• Full duplex (requires a full duplex switching hub or adapter). The
adapter can send and receive packets at the same time. This mode can
increase adapter performance capability. If the full duplex hub provides
auto-negotiation, the adapter runs at full duplex. If the full duplex hub
does not provide auto-negotiation, you need to set the adapter duplex
mode manually (see following paragraphs)
• Half duplex. The adapter performs one operation at a time; it either
sends or receives.
Note: If your hub is running at 100 Mbps and half duplex, your potential
bandwidth is higher than if you run at 10 Mbps and full duplex.
Manually Configuring for Full Duplex
If your switch supports auto-negotiation with the N-way standard,
duplex configuration is automatic and no action is required on your part.
However, few switches in the current installed base support auto-
negotiation. Check with your network system administrator to verify.
Most installations will require manual configuration to change to full
duplex.
Configuration is specific to the driver you’re loading for your network
operating system (NOS), as shown in the following paragraphs.
To set up the duplex mode, refer to the section below that corresponds
to your operating system. Adapter performance may suffer or your
adapter may not operate if your hub does not support full duplex and
you configure the adapter to full duplex. Leave the adapter on half
duplex if you are not sure what type of hub you are connected to.
DOS ODI, NDIS 2.01 Clients
Edit the NET.CFG or PROTOCOL.INI file. Add kewords to Link
Driver section:
FORCEDUPLEX 2
SPEED 100 (or 10 if 10BASE-T)
ONBO
ARD