02337nam a2200169Ia 4500999001700000100007000017245009100087260001000178260000900188300000700197500169700204700004201901856003301943942001101976952009001987952009002077  c62686d62683  aHina Kanwal Bhatti a11MSIT07aSupervisor Dr. Imtiaz Ali Halepoto 0aPerformance Evaluation of Data VLAN and Default VLAN Using Opnet Simulator (ME Thesis)  bQUEST  c2018  a49  aABSTRACT

Day by day the communication technology is increasing that also increases the use and design of efficient networks. One of the popular networks is the LAN, where the device are connected to each other through a centralized device. However, in many institutes and business firms, one LAN is not sufficient and the subnetting is required. The task of subnetting can be performed with the help of a router. However, the routers are expensive, inflexible, restricted to a limited area. Moreover the routers are slower when compared with the layer 2 devices such as a switch. The subnetting can be performed at the layer 2 by means of virtual LAN (VLAN). VLAN is collections of computers within one building that communicate over a one physical data connection. It is the logical division of devices i n order to group the devices.
In this study, the performance evaluation is performed between two types of VLAN networks called the Default VLAN and Data VLAN. The performance is evaluated by using OPNET simulator with different parameters that includes traffic sent, received and packet dropped ratio. The study show that Default V LAN is working better than no VLAN due to aging of filtering database entries. The large traffic exists in the network without VLANs, since any communication between different groups is allowed. When using VLANs, the devices only broadcast to the members of one group.  It improves the bandwidth   utilization, security and   the administration by supporting a virtual organization. The data VLAN shows highest traffic sent as compared to the Defau lt VLAN. The final results show that the Data VLAN works efficiently than other type of VLAN.










  aDepartment of Information Technology   uhttps://tinyurl.com/3sdmsnw2  cTHESIS  00104070aRESEARCHbRESEARCHd2018-10-22l0pMP/37-398r2018-10-22 00:00:00yTHESIS  00104070aRESEARCHbRESEARCHd2019-02-27l0pMP/39-427r2019-02-27 00:00:00yTHESIS