NT 1310 NETWORK TOPOLOGY PAPER

NT 1310 NETWORK TOPOLOGY PAPER:
KENDAL JEFFERSON

Network topology refers to layout of a network and how different nodes in a network are connected to each other and how they communicate. Mesh Topology: in a mesh network, devices are connected with many redundant interconnections between network nodes, in a true mesh topology every node has a connection to every other node in the network. There are two types of mesh topologies: Full mesh occurs when every node has a circuit connection it to every other node in a network. Full mesh is very expensive to implement but yields the greatest amount of redundancy, so in the event that one of those nodes fails network traffic can be directed to any of the other nodes. Full mesh is usually reserved for backbone networks. Partial mesh topology: is less expensive to implement and yields less redundancy than full mesh topology. With partial mesh, some nodes are organized in a full scheme but others are only connected to one or two in the network. Partial mesh topology is commonly found in peripheral networks connected to a full meshed backbone. (Beal, 2011) Bus topology: in networking a bus is the central cable the wire that connects all devices on local-area network. It is called the backbone. This is often used to describe the main network connections composing the internet. Bus networks are relatively inexpensive and easy to install for small networks. Ethernet systems use a bus topology. The main advantage is that it’s easy to connect a computer of device and typically it requires less cable that a star topology. Main disadvantage is the entire network shuts down if there is a break in the main wire and it can be difficult to identify the problem if the network shuts down. (Beal, 2011) Ring topology: a LAN whose topology is a ring. That is, all of the nodes are connected in a closed loop. Messages travel around the ring, with each node reading those messages addressed to it. One main advantage to a ring network is that it can span larger distances than other types of networks, because each node regenerates message as they pass through it. (Beal, 2011) Tree topology: this is a “hybrid” topology that combines characteristics of linear bus and stat topologies. In a tree network, groups of star-configured networks are connected to a linear bus backbone cable. Main advantage is a tree topology is a good choice for larger computer networks as the tree topology “divides” the whole network into parts that are more easily manageable. Main disadvantage the entire network depends on a central hub and a failure of the central hub can cripple the whole network. (Beal, 2011)