Computer Network Topologies The term topology refers to the way a network is laid out, either physically or logically. The connection of two or more devices forms a link and two or more links forms a topology. The topology of a network is the geometric   representation of the relationship of all the links and linking devices to one another. Basically, there are five topologies – mesh, star, tree, bus, and ring. 1)       Mesh:- Every devices has a dedicated point-to-point link to each other devices in a mesh topology. Therefore a fully connected mesh network has n(n-1)/2 physical channels to link n devices.           Mesh topology has several advantages:- a)       The use of dedicated links guarantees that each connection can carry its own data load,   therefore minimizing the traffic problems which can take place if links much be shared by multiple devices. b)       It is robust. It does not incapacitate the entire system when one link damages. c)        It enforces priv