Registry Parameters for Windows NT Load Balancing Service
This article was previously published under Q193601 IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base: 256986 (http://support.microsoft.com/kb/256986/EN-US/) Description of the Microsoft Windows Registry
SUMMARY
The following registry parameters can be modified to change the behavior
of Windows NT Load Balancing Service (WLBS).
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk. The registry parameters for WLBS are specified under the following key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WLBS\Parameters
AliveMsgPeriod Data type = REG_DWORD Range = 100 - 10000 Default = 1000 Specifies the period in milliseconds between "I am alive" status messages broadcast by each host.
AliveMsgTolerance
Data type = REG_DWORD Range = 5 - 100 Default = 5 Specifies the number of periods to wait after the last message from a host before it is declared dead.
ClusterIPAddress
Data type = REG_SZ Specifies the IP address of the WLBS cluster (also configurable through the GUI).
ClusterName
Data type = REG_SZ Specifies the name used of the WLBS cluster (also configurable through the GUI).
ClusterNetworkAddress
Data type = REG_SZ Specifies the media access control address used by the WLBS cluster (also configurable through the GUI).
ClusterNetworkMask
Data type = REG_SZ Specifies the network mask used by the WLBS cluster (also configurable through the GUI).
ClusterModeOnStart
Data type = REG_DWORD Range = 0 or 1 Default = 0 Specifies whether WLBS should start on boot up (also configurable through the GUI).
ConnectionCleanupDelay
Data type = REG_DWORD Range = 0 - 3600000 Default = 300000 Specifies TCP connection cleanup delay between cluster mode restarts in milliseconds.
DedicatedIPAddress
Data type = REG_SZ Specifies the dedicated IP address of the WLBS host's NIC (also configurable through the GUI).
DedicatedNetworkMask
Data type = REG_SZ Specifies the dedicated network mask of the WLBS host's NIC (also configurable through the GUI).
DescriptorsPerAlloc
Data type = REG_DWORD Range = 16 - 1024 Default = 512 Specifies the number of connection descriptors allocated at a time.
HostPriority
Data type = REG_DWORD Range = 1 - 32 Default = 1 Specifies the value for the Host Priority (also configurable through the GUI).
IPToMACEnable
Data type = REG_DWORD Range = 0 or 1 Default = 0 Enables automatic network address derivation from primary cluster IP address.
LicenseKey
Data type = REG_SZ Specifies the license key used by the WLBS cluster (also configurable through the GUI).
MaxDescriptorsAlloc
Data type = REG_DWORD Range = 1 - 512 Default = 512 Specifies the maximum number of times connection descriptors can be allocated.
MaskSourceMAC
Data type = REG_DWORD Range = 0 or 1 Default = 1 Set to 1 masks source media access control address in outbound packets, preventing switches from learning and forcing them to broadcast packets for unknown addresses to all ports. Set to 0 disables masking of the media access control address.
MulticastSupportEnable
Data type = REG_DWORD Range = 0 or 1 Default = 0 Enables multicast mode.
MulticastARPEnable
Data type = REG_DWORD Range = 0 or 1 Default = 0 Enables ARPing from cluster IP to multicast media access control in multicast mode.
NBTSupportEnable
Data type = REG_DWORD Range = 0 or 1 Default = 1 Enables NBT cluster computer name support.
RemoteControlEnabled
Data type = REG_DWORD Range = 0 or 1 Default = 1 Enables remote control.
RemoteControlUDPPort
Data type = REG_DWORD Range = 1 - 65535 Default = 2504 Specifies remote control UDP port for WLBS to use. APPLIES TO
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