Sign in. United States English. Ask a question. Quick access. Search related threads. Remove From My Forums. Answered by:. Unicast is the default mode. This traffic is received by all the hosts in cluster and NLB driver filter the traffic as per the Port Rules defined. NLB nodes don't communicate with each other for incoming traffic coming from client because NLB is enabled on all the nodes. A statistically mapping rule is created on each host to distribute incoming traffic.
This mapping remains the same unless there's a change in the cluster for example, node removed or added. Convergence is a process to rebuild the cluster state. This process invokes when there's a change in cluster for example, node fails, leaves, or rejoin the cluster. In this process, the following actions are taken by cluster:.
During this process, remaining host continues to handle incoming client traffic. If a host is added to the cluster, convergence allows this host to receive its share of the load-balanced traffic. Expansion of the cluster doesn't affect ongoing cluster operations and is achieved transparently to both Internet clients and to server applications.
However, it might affect client sessions that span multiple TCP connections when client affinity is selected, because clients might be remapped to different cluster hosts between connections. For more information on affinity. All the nodes in cluster emit the heartbeat messages to tell their availability in the cluster. The default period for sending heartbeat message is one second and five missed heartbeat messages from a host cause NLB to invoke Convergence process. We can configure multiple NLB clusters on the same network adapter and then apply the specific port rules to each of those IP addresses.
The most important setting is probably the filtering mode. Press OK to continue. Enter the address of the Virtual IP address of the cluster. Which is Press "OK". Go to the command prompt and type "wlbs query", as you can see HOST 1 converged successfully on the cluster. The IP address is This means things are working well. The record was created successfully. Press OK to continue. Enter the address of the Virtual IP address of the cluster.
Which is Press "OK". Go to the command prompt and type "wlbs query", as you can see HOST 1 converged successfully on the cluster. The IP address is This means things are working well. The record was created successfully. You should get a response.
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