Tuesday, September 9, 2014

Five Basic Concepts of Data Communication- 2nd Topology Cont


Mesh Topology
A network setup where each computer and network device is interconnected with one another, allowing for most transmissions to be distributed, even if one of the connections go down. This topology is not commonly used for most computer networks as it is difficult and expensive to have redundant connection to every computer. However, this topology is commonly used for wireless networks. Below is a visual example of a simple computer setup on a network using a mesh topology.
n figure above, we have 5 Nodes, therefore:

   No. of Links= 5(5-1)/2 = 10
   No. of I/O Ports= 5-1 = 4

This increase exponentially with increase in No. of Nodes

 e.g. for 6 nodes = 15 Links
7 Nodes=21 Linkss_

   Advantages of Mesh Topology

   Use of Dedicated links guarantees that each connection can carry its own load.
This eliminates Traffic Problems as in case of Shared Link
   Mesh Topology is robust. If one link fails, it does not effect other links
   Security & Privacy due to dedicated links
   Point - to -Point links make Fault Identification easy

   Disadvantages of Mesh Topology

   Amount of Cabling
   Makes Installation & Reconfiguration difficult
   Sheer bulk of wiring can be greater than the available space

   Number of I/O Ports Required
   Hardware required to connect each link can be prohibitively expensive

No comments:

Post a Comment