What Is Ring Topology? Advantages and Disadvantages of Ring Topology.
Short Bytes: Do you recognize approximately Ring topology or a Ring community? Here, I’ll inform you the sorts of a Ring community, Token passing machine in a hoop community and what are the benefits and downsides of a hoop topology over different community topology.
What is a Ring Topology?
Ring topology, additionally called Ring community, is a sort of community topology wherein every node is precisely related to 2 different nodes, ahead and backward, hence forming a unmarried non-stop route for sign transmission.
There are sorts of the Ring Topology primarily based totally at the information glide:
Unidirectional and,
Bidirectional
A Unidirectional ring topology handles information site visitors in both clockwise or anticlockwise course. This information community, hence, also can be known as as a half-duplex community. A Unidirectional ring topology is hence clean to hold in comparison to the bidirectional ring topology.
Ex: SONET community, SDH community etc.
A SONET/ SDH is a standardized community protocol that transfers information streams over optical fibers. Whereas, a bidirectional ring topology handles information site visitors in each the course and may be a full-duplex community.
Token Passing:
Token passing in a Ring Topology is usually a time period that is talked approximately. So, a token incorporates a bit of statistics that is despatched in conjunction with information through the supply computer. In simpler terms, a token is sort of a permission packet which permits a selected node the permission to launch statistics over the community.
A token is frequently handed from one node to another. And if a node has a few statistics to byskip at the community, the node releases the statistics. If the node does now no longer have any information to launch at the community, then it transfers the token to the subsequent node.
The nodes with token are those handiest allowed to ship information. Other nodes should look ahead to an empty token to attain them.
Advantages of Ring topology:
*Reduced probabilities of information collision as every node launch a information packet after receiving the token.
*Token passing makes ring topology carry out higher than bus topology below heavy site visitors
*No want of server to manipulate connectivity most of the nodes
*Equal get admission to to the resources.
Disadvantages of Ring topology:
*In Unidirectional Ring, a information packet should byskip thru all of the nodes.
Ex: Let’s say A, B, C, D, and E are part of the hoop community. The information glide is from A closer to B and henceforth. In this condition, if E desires to ship a packet to D, the packet should traverse the complete community to attain D.
*Single factor of failure, which means if a node is going down complete community is going down.
