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Q197863: WLBS Cluster Servers Show Multiple Default Hosts

Article: Q197863
Product(s): Microsoft Windows NT
Version(s): winnt:4.0
Operating System(s): 
Keyword(s): 
Last Modified: 10-AUG-2001

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The information in this article applies to:

- Microsoft Windows NT Server version 4.0 
- Microsoft Windows NT Server, Enterprise Edition 
- Microsoft Windows NT Load Balancing Service 
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SYMPTOMS
========

After you start the cluster hosts, the hosts report that convergence has
completed, but more than one host is a default.

CAUSE
=====

Probably causes are as follows:

1. The cluster hosts have become subnetted so that all hosts are not reachable
  on the same network.

2. Different network addresses are being used across the cluster, and the
  cluster's primary IP address was not entered into the TCP/IP configuration
  for the Windows NT Load Balancing Service (WLBS) Virtual NIC.

3. Different clusters are running on the same subnet.

RESOLUTION
==========

To resolve these issues, use the corresponding resolutions below:

1. Be sure that all cluster hosts can communicate with each other.

2. In the case of different network addresses being used, TCP/IP will not detect
  an address conflict, and multiple clusters will exist. Be sure to use one
  cluster primary IP address and a corresponding network address on all hosts
  within the same cluster, and be sure to enter the primary IP address in the
  TCP/IP configuration for the WLBS Virtual NIC.

3. If you use different primary IP addresses, each with unique corresponding
  network addresses, on various cluster hosts, you can create multiple clusters
  on the same subnet. This is a not a problem unless this behavior was not
  intended.

Additional query words: Convoy

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Keywords          :  
Technology        : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTSEntSearch kbWinNTS400search kbWinNTS400 kbWinNTLBSSearch
Version           : winnt:4.0
Issue type        : kbprb

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