Virtual Local Area Networks Essay Example | Topics and Well Written Essays - 2000 words

practical(prenominal) Local orbital cavity Networks - Essay ExampleNs, properties of LANs and broadcast domains, the advantages of using VLANs compared with older router establish networks and finally discuss the situations in which VLANs are not appropriate or indispensable.Virtual Local Area Network (VLAN) is a logical group of workstations, servers and network devices that share the uniform broadcast domain without claim to be geographically located in the same area (Chowdhury and Boutaba, 2009). This means that the network administrator shtup logically divide the LAN into different VLANs each with its own broadcast domain instead of having star broadcast domain shared between all devices in the network. For instance, an organization with different physically unconnected departments cigaret segment its network into multiple VLANs based on the departments for special purposes. Hence, only hosts that belong to the same particular VLAN can exchange data or share network resou rces. In addition, different VLANs can communicate only through a router which has to be connected to both of them, hence reduced congestion of traffic in the network that originates from a broadcast frame (Hartpence, 2011). Therefore, splitting a network into VLANs rising slope the performance, security and reduce the clogging on a large LANs (Yadav et al., 2013).The enhancement of todays Virtual LAN has been achieved through different stages. According to (Cullen, 2001) the development of LAN switches began in 1990 bridges were used as a layer 2 devices to segment networks and to solve the consumption of bandwidth used in broadcast traffic. aft(prenominal) that, it was replace by segmenting networks at layer 3 using a issuance of routers between segments and a chain of hubs inside each segment to forward frames between devices (Hartpence, 2011). The problem of using hubs is that, it deals with all frames as a broadcast frame and forward incoming frames to all devices in the sh ared segment. Therefore, the increased number of hosts in each segment leads to increased demand of bandwidth