DOCUMENT:Q193601 11-JUN-2002 [winnt] TITLE :Registry Parameters for Windows NT Load Balancing Service PRODUCT :Microsoft Windows NT PROD/VER:winnt:1.0,4.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0 - Microsoft Windows NT Load Balancing Service 1.0 ------------------------------------------------------------------------------- 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: Q256986 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. Additional query words: Convoy WLBS ====================================================================== Keywords : Technology : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTLBS100 kbWinNTLBSSearch Version : winnt:1.0,4.0 Issue type : kbinfo ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 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