When the data rates are increased, throughputs in both RC and IP networks also increased, but the throughputs of RC network are better than that of IP network. The network traffic fed into the first mesh causing nodes in the first mesh to process more traffic than in the next meshes, so performance parameters for nodes in the first mesh are inferior to those in the next meshes. We can obviously perceive that nodes in the last mesh will have very low traffic, so there are very few packets waiting in queues. Especially in RC network, Mean Waiting Time for nodes in the last mesh is nearly zero. In RC network, IP lookup process is distributed to all nodes along the path, so packet processing intervals are reduced causing all performance parameters, such as throughputs, MQL, MWT, and Utilization Factor to be better than the IP network. Moreover, in the mesh network, when we increase the number of nodes by cascading another two nodes to the existing mesh network, RC network can maintain its throughputs in all meshes. In Big Oh notation of RC network, the performance relied only on the address length of the packets. In contrast, the performance of IP network relied on both address length and number of prefixes in the table. As number of nodes increases, the number of prefixes in the hash table also increases, so we can assume that number of nodes directly influences the performance of IP network. This results in the IP network’s throughputs to be lowered when we increase the number of nodes in the backbone network.