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_MACHINESYSTEMCurrentControlSetServicesWLBSParameters

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.