MANAGEMENT INFORMATION SYSTEMPRESENTED BYAkansha
Singh15BSP0108*
*Network Topology
CP2073 Networking
*IntroductionPhysical and Logical
TopologiesTopologiesBusRingStarExtended StarMesh
*Physical vs. Logical TopologyThe actual layout of a network and
its media is its Physical TopologyThe way in which the data access
the medium and transmits packets is the Logical Topology
*Bus Topology
*Bus Topology (5)AdvantagesInexpensive to installEasy to add
stationsUse less cable than other topologiesWorks well for small
networksDisadvantagesNo longer recommendedBackbone breaks, whole
network downLimited no of devices can be attachedDifficult to
isolate problemsSharing same cable slows response rates
*Ring Topology
*Ring Topology (3)AdvantagesData packets travel at great speedNo
collisionsEasier to fault findDisadvantagesRequires more cable than
a busA break in the ring will bring it downNot as common as the bus
less devices available
*Star Topology
*Star Topology (3)AdvantagesEasy to add devices as the network
expandsOne cable failure does not bring down the entire network
(resilience)Hub provides centralised managementEasy to find device
and cable problemsCan be upgraded to faster speeds.DisadvantagesA
star network requires more cable than a ring or bus networkFailure
of the central hub can bring down the entire networkCosts are
higher (installation and equipment) than for most bus networks
*Extended Star TopologyA Star Network which has been expanded to
include an additional hub or hubs.
*Mesh Topology (Web)
*Mesh Topology (2)Not common on LANsMost often used in WANs to
interconnect LANSEach node is connected to every other nodeAllows
communication to continue in the event of a break in any one
connectionIt is Fault Tolerant
*Mesh Topology (3)AdvantagesImproves Fault
ToleranceDisadvantagesExpensiveDifficult to installDifficult to
manageDifficult to troubleshoot
