Allied Telesis AT-2973T/4, AT-2973SX manual Configuring the Speed and Duplex Settings

Chapter 4: Installing the Monolithic Software Driver

Configuring the Speed and Duplex Settings

Since the typical environment where the NetXtreme II monolithic driver is used does not provide the means to configure advanced network adapter properties, the driver file (b06nd.inf) was modified to include a section that allows it to be configured for a specific speed and duplex mode. This provides a more robust connection to the network as it allows the adapter to match the settings of its link partner (for example, a switch or a router).

To manually configure the speed and duplex, do the following:

1.Open the b06nd.inf file with a text editor like Microsoft Notepad or WordPad.

2.Search the file for Registry parameters to locate the section that allows you to configure the adapter speed and duplex mode.

Once located, notice the following information:

[params_utp]
hkr, , req_medium,	2, "0"
[params_fiber]
hkr, , req_medium,	2, "65283"

These are two separate sections that can be configured: one for standard RJ-45 copper interfaces (params_utp) and one for fiber devices (params_fiber).

3.As described in the file, replace the value above in quotation marks under the correct section, depending upon the network adapter in your system. The available values are shown below.

Options for copper interfaces:

–Auto (1 Gbps is enabled when that speed is supported) = "0"

–10 Mbps Half Duplex = "65794"

–10 Mbps Full Duplex = "258"

–100 Mbps Half Duplex = "66050"

–100 Mbps Full Duplex = "514"

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