It examines the strengths and weaknesses of each
approach with particular focus on an analysis of the capacity that is available to users.
10.1 Introduction
Mesh is a type of network architecture. Other common network architectures have included
Ethernet, originally a shared bus topology for local area networks (LANs) in which every
node taps into a common cable that carries all transmissions from all nodes to an egress
point. In bus networks, any node on the network senses all transmissions from every other
node in the network. Today, most LANs use a star architecture in which every node is
connected using a dedicated link to a central switch connected to an egress point (switches
can be interconnected to form larger networks).
Mesh networks are different ??“ physical layer connectivity from every node to the
egress is not required. As long as a node is connected to at least one other node in the mesh
network, it will have full connectivity to the entire network because each mesh node
forwards packets to other nodes in the network as required. Mesh protocols automatically
determine the best route through the network and can dynamically reconfigure the network
if a link becomes unusable.
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