JSI Tip 1064. Managing the registry entries for the cluster Windows NT Load Balancing Service (WLBS).

The WLBS registry entries are located at:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WLBS\Parameters

You can adjust the following values to manage the service: (I have indicated when the setting is available in the GUI)

   AliveMsgPeriod
   Data type = REG_DWORD
   Range = 100 - 10000
   Default = 1000
   Specifies the time 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 (GUI).

   ClusterName
   Data type = REG_SZ
   Specifies the name of the WLBS cluster (GUI).

   ClusterNetworkAddress
   Data type = REG_SZ
   Specifies the media access control address (MAC) used by the WLBS cluster (GUI).

   ClusterNetworkMask
   Data type = REG_SZ
   Specifies the network mask used by the WLBS cluster (GUI).

   ClusterModeOnStart
   Data type = REG_DWORD
   Range = 0 or 1
   Default = 0
   Specifies whether WLBS should start on boot up (GUI).

   ConnectionCleanupDelay
   Data type = REG_DWORD
   Range = 0 - 3600000
   Default = 300000
   Specifies TCP connection cleanup delay between cluster node restarts, in
   milliseconds.

   DedicatedIPAddress
   Data type = REG_SZ
   Specifies the dedicated IP address of the WLBS host's NIC (GUI).

   DedicatedNetworkMask
   Data type = REG_SZ
   Specifies the dedicated network mask of the WLBS host's NIC (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 (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 (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
   When set to 1, WLBS masks source MAC address in outbound packets,
   preventing switches from learning and forcing them to broadcast packets for
   unknown addresses to all ports. When set to 0, WLBS disables masking of the MAC 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 = 1717
   Specifies remote control UDP port for WLBS to use.