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Connecting Nonpeer Nodes to the Cluster Through Additional Physical InterfacesThis section describes how a nonpeer node can be connected to the cluster network through additional physical interfaces on the peer nodes. This configuration is preferable to that in Connecting Nonpeer Nodes Directly to a Cluster Network for the following reasons:
All of the supported node hardware for the Foundation Services can be configured with more than two physical interfaces. Figure 5-3 shows an example of how a nonpeer node can be connected to a cluster through the physical interface hme2. Figure 5-3 Example of a Nonpeer Node Connected to the Cluster Network Through Additional Physical Interfaces on Peer Nodes ![]() For simplicity, in Figure 5-3 the nonpeer node is connected to each peer node through a single interface. This configuration would introduce a single point of failure. In highly available platforms, single points of failure must be avoided. Addressing Physical Interfaces That Are Connected to an External NetworkTable 5-2 shows the IP addresses of the master node in Figure 5-3. In addition to the addresses in Figure 5-3, the master node has a floating address for each interface. The Node State Manager configures the floating external address, hme2:1. Table 5-2 Example IP Addresses for a Master Node With Three Physical Interfaces
Connecting Nonpeer Nodes to the Cluster Network Through a RouterThis section describes how a nonpeer node can be connected to the cluster network through a router. The router node can contain the Network Address Translation (NAT) service to protect the cluster from unwanted external traffic. The use of a router is advantageous compared to the scenario in Connecting Nonpeer Nodes Directly to a Cluster Network for the following reasons:
However, the use of a router is disadvantageous compared to the scenario in Connecting Nonpeer Nodes to the Cluster Through Additional Physical Interfaces for the following reasons:
The following figure shows an example of how several nonpeer nodes can be connected to a cluster network through a router. Figure 5-4 Example of Nonpeer Nodes Connected to the Cluster Network Through a Router ![]() | ||||||||||||||||||||||
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