When a device on BUS Topology wants to send a message to another nod, it first finds out the destination address. Then it checks that whether the Communication Line is free or not! As soon as the communication line becomes free, the message is broadcasted on the line. The signal travels to the destination node by passing all the nodes that are on its way. As the message travels on the line, each node checks that whether the message is addressed to them or not. When the addressee node receives the message successfully, it sends an acknowledgement to the sender/source node. Then the transmission line becomes free. In this case, all nodes will receive the message, but the addressee node has to respond back.
bus topology
Bus
A bus is a linear network topology where there is a startpoint and endpoint (two different nodes) and the other nodes are between, in a straight line. A ring operates like a circle- data travels in one direction through the nodes, ending up at the starting node. In a ring topology, there is a central node to which each other node connects to. This is usually a hub or server. Ajeet kumar Mishra HCL CDC Allahabad HCE -064 Batch
The most common LAN topology is that of a "star." In a star topology, each computer, or "node", is connected to a central hub. This is more reliable than a more classical "ring" topology, because a node failing will not bring down the entire network. A bus topology is arguably more reliable, but has poorer performance.
Bus topology is the most popular topology. Justify.
Ring technology: In a ring network, every device has exactly two neighboring devices for communication purpose. It is called a ring topology as its formation is like a ring. In this topology, every computer is connected to another computer. Here, the last node is combined with a first one. This topology uses token to pass the information from one computer to another. In this topology, all the messages travel through a ring in the same direction.
Depends on which topology you are used i.e Ring, Bus, Mesh or Star. Like in Ring topology each node is connected to 2 nodes on either side and is suitable for small network. In Star topology there is a central node to which all other nodes are connected, data is transferred from source node to central hub and then to destination node. In Bus topology one long cable act as a back bone to link all the devices and is reliable from hardware point of view.
Any connection failure in a bus topology will result in the network becoming unusable due to signal bounce in the affected cable.
bus topology
Bus Topology.
this topology is very economical like bus topology because it doesn't required a number of I\O ports to connect node and doesn't required several kinds of multiplexing devices to manage.
Bus topology is extended via the use of repeaters.