the most appropriate network to be used for clustering will be automatically selected
based on connectivity. However, this can be changed after the cluster is created.
Automatic metrics are used to determine the network used for clustering and other
services based on the automatic configurations made by the cluster wizard and your
customizations post creation. Figure 7.18 shows the properties available for each
network available to Failover Clustering. Note that the network adapters used by
Hyper-V virtual switches are not shown because they effectively offer no services to
the Hyper-V host itself.
Figure 7.18 Cluster network properties
Notice that for each network, the following options are available, which are initially
configured during clustering setup based on the IP configuration of the network
adapter and whether a gateway was configured. These configure the role of the
networks in relation to cluster activities, and they also have a numeric value, shown in
square brackets:
Allow Cluster Network Communication On This Network [1] This is set
automatically for any IP-enabled network adapter, and it allows the cluster to use
this network if necessary unless the iSCSI Software Initiator is bound to the IP
address, in which case this is not configured.
Allow Clients To Connect Through This Network [3] This is set
automatically if the IP configuration for the network adapter has a gateway
defined, which suggests external communication and therefore client
communication.
Do Not Allow Cluster Network Communication On This Network [0] The