Cannot Ping a WLBS Server from Another WLBS Server

ID: Q197864

The information in this article applies to:

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

SYMPTOMS

When you ping a cluster host's dedicated IP address from another cluster host, you receive no response.

CAUSE

This issue is a single network interface card (NIC) limitation. If you are using a single NIC and have not selected the Windows NT Load Balancing Service (WLBS) multicast support, the cluster hosts will not be able to communicate with each other even though they can exchange network traffic with outside systems.

NOTE: On a cluster host with multiple NICs, having the Dedicated and Virtual IP address(es) configured on the same NIC cause WLBS to consider it a single-NIC configuration.

RESOLUTION

To resolve this issue, select multicast support in the WLBS Setup dialog box to eliminate this problem.

Additional query words: Convoy

Keywords :
Version : winnt:4.0
Platform : winnt
Issue type : kbprb