Mesh topology

Mesh topology

Every devices has a dedicated point to-point- link to every other device. To find the number of physical links in a fully connected mesh network with n nodes, we first consider that each node must be connected to every others nodes.

Number of physical link=n(n-1)

If each physical link is duplex, we can divide the number of links by 2, (n(n-1))/2.

Advantage


  1. Eliminate traffic problem
  2. Robust. If one of the link is unusable, it will not effect the entire system
  3. Privacy and security

Disadvantage

  1. installation and re-connection are difficult
  2. Wiring and cable required large spaces because required many cable in mesh topology
  3. Hardware can be expensive (Need lot of I/O port and cable)

One practical example of mesh topology is the connection of telephone regional offices in which each regional office need to be connected to every other regional office.


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