You must attach each network interface that you plan to configure for LLT to a separate physical network. You may use aggregate links for LLT. Do not use dissimilar network cards for the private links.Verify that the nodes in the cluster are connected with network links using similar network devices. For example, if you use bge0 as a public link on one node in the cluster, all other nodes in the cluster must also use bge0 as the public link. Similarly, if you use bge1 as a private link on one node in the cluster, all other nodes in the cluster must also use bge1 as the private link.

For optimal LLT communication among the cluster nodes, the interface cards on each node must use the same media speed settings. Also, the settings for switches or hubs used for the interconnects must match that of the interface cards. Incorrect settings cause poor network performance or even network failure.

If you use directly connected Ethernet links, set the media speed to the highest value common to both cards.