Hi @Matt99
You can set Cluster with 1 node, 2 node and 4 node also.
1. If you are using 1 node cluster then you don't need to configure intra cluster network.
2. If it is two node cluster you have configure intra cluster network (connect 2 10g ports from node1 to 2 10g ports on node2).
3. If it is beyond 2 nodes, then you need to include switches to configure intra cluster network.
note: you have to use CN1610, CN1601 or cisco 5596 , 5010 , 5020 switches for intra cluster network.
Intra cluster network : it is a private network which will be used for node communication with in the cluster.
Please let me know if you have any more questions.