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I-375 NWNBLink provides many extensions to the Novell NetBios protocol. If you use this protocol in a Microsoft-only shop, you can really speed things up with a few registry parameters.
Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NWNBLink\ Parameters |
Value Name: | Extensions |
Data Type: | REG_DWORD |
Value: | 1 |
Changing this parameter tells NWNBLink to use the Microsoft extensions. If NWBLink is communicating with a client using standard Novell NetBIOS protocol, it falls back to the standard version in favor of the extended version.
I-376 | Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NWNBLink\ Parameters | |
Value Name: | AckDelayTime | |
Data Type: | REG_DWORD | |
Value: | 250 |
Windows NT uses this value, which is in milliseconds, when it sends a delayed acknowledgment. You can use this value in conjunction with the AckWindow value, below, to adjust the frequency at which Windows NT must acknowledge frames it is sent. The default value is 250 milliseconds; the value can range from 0 to 65535.
I-377 | Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NWNBLink\ Parameters | |
Value Name: | AckWindow | |
Data Type: | REG_DWORD | |
Value: | 2 |
This value controls the number of frames that are received before an acknowledgment is sent. If you have two computers, one on a fast network and the other on a slow link, adjusting this value can increase throughput. Conversely, if both computers are on a fast link, you can turn off this function by setting the value to 0. You can also let Windows NT determine this value dynamically using the AckWindowThreshold value, below. The default value is 2 and represents the number of frames. The range is 0 to 65535.
I-378 | Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NWNBLink\ Parameters | |
Value Name: | AckWindowThreshold | |
Data Type: | REG_DWORD: | |
Value: | 500 |
This value, in milliseconds, dynamically determines whether it is necessary to send automatic acknowledgments. The determination is based on round-trip time. If this value is set to 0, the NWNBLink uses the AckWindows entry. The default is 500 milliseconds; the range is 0 to 65535.
I-379 | Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NWNBLink\ Parameters | |
Value Name: | EnablePiggyBackAck | |
Data Type: | REG_DWORD | |
Value: | 1 |
Enabling NWNBLinks ability to piggyback acknowledgments can increase your overall network performance if you participate in two-way NetBIOS traffic on your network. If you set this value to 1, NWNBLink can piggyback acknowledgments when it detects the end of a message. If this value is set to 0, NWNBLink waits the number of milliseconds set in the AckDelayTime before it sends an acknowledgment.
I-380 | Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NWNBLink\ Parameters | |
Value Name: | RcvWindowMax | |
Data Type: | REG_DWORD | |
Value: | 4 |
This value determines how many frames the receiver handles at one time. This value is generally set at session initialization to tell the sender the limit of frames it can send at a time. Altering this value can increase throughput and performance.
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