1. 2560tx22.exe Driver
2. DUPLEX.TXT File Contents

DUPLEX.TXT Driver File Contents (2560tx22.exe)

   Duplex support
                                                         a1.09


Duplexing is a performance option that lets you choose how the
adapter sends and receives packets over the network.

ATI AT-2560 PCI adapter duplex choices
--------------------------------------

   Auto. The TX adapter negotiates with the full duplex switching
   hub to send and receive packets at the
   highest rate. The hub must support auto-negotiation. If the
   hub does not support auto-negotiation, the adapter defaults to
   half duplex.

   Full duplex (requires full-duplex switching hub). The adapter
   sends and receives packets simultaneously by using a different
   wire to perform each function. This feature can improve
   adapter performance by eliminating collisions. 

   Half duplex. The adapter performs one operation at a time
   (because send and receive lines are shared); it either sends
   or receives.


Warning:  Incorrectly forcing a specific duplex mode may result
in poor performance. Consult your LAN administrator before
forcing a duplex mode or if you don't know what kind of hub
you're attached to.


Configuring for full-duplex
===========================

If you have an auto-negotiating hub (an NWay* hub), the adapter
will automatically match the duplex setting at the hub. If you
don't have an auto-negotiating hub, you'll need to manually
configure the adapter for full duplex support.

Configuration is specific to the driver you're loading for your
network operating system (NOS). See the sections for your NOS below.

Note: you must set the Speed when configuring for full-duplex
      support. Don't leave the Speed set to Auto.

To set up the duplex mode, refer to the section below that
corresponds to your operating system. For example, if you are
running Windows NT on a Novell network, choose the Windows NT
method below.

Note that performance may suffer if your hub is not 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 clients
---------------

Edit the NET.CFG file. Add the SPEED and FORCEDUPLEX parameters
under the link driver section. For example
   
   Link Driver AT-2560ODI
       SPEED 100 (or 10 for 10 Mbps operation)
       FORCEDUPLEX 2


Windows* NT
------------

Use the A2560SET adapter setup program:

1.  Double-click the A2560SET icon in the Control Panel.

2.  Click Change.

3.  Set Speed to 10 or 100. 

4.  Set Duplex Mode to Full.

5.  Click OK until prompted to restart. Restart Windows NT.




Windows 95
----------

Use the A2560SET adapter setup program:

1.  Double-click the A2560SET icon in the Control Panel.

2.  Click Change.

3.  Set Speed to 10 or 100. 

4.  Set Duplex Mode to Full.

5.  Click OK until prompted to restart. Restart Windows 95.




Other NDIS 2.x based clients
----------------------------

Edit the PROTOCOL.INI file. Add the FORCEDUPLEX and SPEED
parameters to the AT-2560 section. For example:
   
   [AT-2560_NIF]          ; varies depending on your NOS
   SPEED = 100          ; or 10 for 10 Mbps operation
   FORCEDUPLEX = 2



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