Ccna routing and Switching Complete Study Guide

Fully meshed topology    In this topology, each routing node on the edge of a given 

packet-switching network has a direct path to every other node on the cloud. Figure 21.2 

shows a fully meshed topology.

f i g u r e   21. 2     Fully meshed topology

This configuration clearly provides a high level of redundancy, but the costs are the highest. 

So a fully meshed topology really isn’t viable in large packet-switched networks. Here are 

some issues you’ll contend with using a fully meshed topology:

 

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Many virtual circuits are required—one for every connection between routers, which 

brings up the cost.

 

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Configuration is more complex for routers without multicast support in non-broadcast 

environments.