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I-360 If you have a lot of memory and a fairly busy network, you can specify the maximum amount of memory NetBT allocates to store all outgoing datagrams. If you fill up the allocated memory, any other attempt to send fails.
Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NetBt\Parameters |
Value Name: | MaxDgramBuffering |
Data Type: | REG_DWORD |
Value: | 0x20000 |
The default is 128K. Restart the machine for any changes to take effect.
I-361 If you have broadcast storms on your network or just are looking for ways to reduce network traffic, try changing these registry entries:
Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NetBt\Parameters |
Value Name: | BcastNameQueryCount |
Data Type: | REG_DWORD |
Value: | 3 |
I-362 | Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NetBt\Parameters | |
Value Name: | NodeType | |
Data Type: | REG_DWORD | |
Value: | 1 or 8 (default) |
This value determines the way NetBT registers and resolves names. Valid values and their meanings are listed below.
Value | Node-Type | Description |
1 | b-node | Uses broadcasts only |
2 | p-node | Uses point-to-point name queries to a WINS server |
4 | m-node | Broadcasts first, then queries the name server |
8 | h-node | Queries the name server first, then broadcasts |
Restart your system for any changes to take effect.
I-363 This value limits the number of times NetBT broadcasts a query for a name without receiving a response. Adjusting this value can have a significant effect on the number of broadcasts on your system.
Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NetBt\Parameters |
Value Name: | BcastQueryTimeout |
Data Type: | REG_DWORD |
Value: | 0x2ee |
This value is the interval in milliseconds between broadcasts. The default value is 0x2ee, or 750 decimal. If you make any changes to these values, restart your computer.
I-364 If you have a particularly large Lmhosts file and your DNS requests take too long, you can speed up your Lmhosts requests by changing this registry value.
Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NetBt\Parameters |
Value Name: | LmhostsTimeout |
Data Type: | REG_DWORD |
Value: | 6000 |
The value is the time, in milliseconds, that elapses before a DNS query of Lmhosts times out.
I-365 | Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NetBt\Parameters | |
Value Name: | CacheTimeout | |
Data Type: | REG_DWORD | |
Value: | 0x927c0 |
This value is the time, in milliseconds, that names are cached in the remote name table. The default is 0x927c0 milliseconds, or 600,000 decimal.
I-366 If you use WINS and have problems changing IP addresses for certain machines, you may want to check the following registry value.
Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NetBt\Parameters |
Value Name: | EnableProxyRegCheck |
Data Type: | REG_DWORD |
Value: | 0 (default) |
Setting this value to 1 tells the proxy name server to send a negative response to any broadcast name registration when that name is already registered with WINS or is in the proxys local name cache with a different IP address. Setting this value back to 0 lets you change IP addresses again.
I-367 If you use a service other than WINS to give you name service information, you can tell NetBT to use it instead of WINS. This registry entry specifies which port NetBT uses. The default is 89, which is the port that the Microsoft WINS Server listens on.
Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NetBt\Parameters |
Value Name: | NameServerPort |
Data Type: | REG_DWORD |
Value: | 0x89 |
Restart your machine for any changes to take effect.
I-368 If WINS name registration takes too long, use this registry value to speed up the interval at which WINS name registration takes place. When it initially registers names, WINS calculates 1/8th of this value and contacts the name server then. After a name is successfully registered, WINS sends a response to the client with the new refresh interval.
Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\NetBt\Parameters |
Value Name: | InitialRefreshTimeout |
Data Type: | REG_DWORD |
Value: | 960000 |
Restart WINS for any changes to take effect.
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