
Converged network design
Figure 83: Layered Server Cluster Topology
Assume that each G650 is equipped with redundant TN2602AP Media Resource 320 circuit packs optionally configured for load balancing or IP bearer duplication. Each G650 is also assumed to contain duplicated TN2312BP IP Server Interfaces (IPSI). The number of TN799DP Control Lan
Layers
The obvious question is why there is a separate Layer 2 access level if the devices at the Layer 3 distribution layer are capable of Layer 2 switching? In general, the access layer reduces the complexity of the network block by separating the functions of the devices, and provides scalability when more ports are required as the network grows. To ensure network modularity, the routers serving this cluster should be dedicated to the cluster and sized to the task. Simplification argues for the reduction of subnets and therefore routed interfaces in the cluster since the service is common. If remote IPSIs or multiple server clusters are implemented across the network, using a single subnet within the cluster simplifies the configuration of the entire network. The addition of static subnets in the direction of the cluster [8] increases the