VLAN Technology
INFORMATION SEARCH
ON
“VLAN TECHNOLOGY”
SUBMITTED BY
Snehesh Bhoir
UNDER VALUABLE GUIDANCE
OF
MISS. SUCHITA
DIPLOMA IN COMPUTER ENGINEERING
PILLAI HOC POLYTECHNIC
RASAYANI
2013-14
Contents
Introduction
What are VLAN's?
Why use VLAN's?
How VLAN's work
Types of VLAN's
Types of Connections
Conclusion
Reference links
Introduction
A Local Area Network (LAN) was originally defined as a network of computers located within the same area. Today, Local Area
Networks are defined as a single broadcast domain. This means that if a user broadcasts information on his/her LAN, the broadcast will be received by every other user on the LAN. Broadcasts are prevented from leaving a LAN by using a router. The disadvantage of this method is routers usually take more time to process incoming data compared to a bridge or a switch. More importantly, the formation of broadcast domains depends on the physical connection of the devices in the network. Virtual Local Area Networks (VLAN's) were developed as an alternative solution to using routers to contain broadcast traffic. VLAN's also allow broadcast domains to be defined without using routers. Bridging software is used instead to define which workstations are to be included in the broadcast domain. Routers would only have to be used to communicate between two VLAN's.
What are VLAN's?
In a traditional LAN, workstations are connected to each other by means of a hub or a repeater. These devices propagate any incoming data throughout the network. However, if two people attempt to send information at the same time, a collision will occur and all the transmitted data will be lost. Once the collision has occurred, it will continue to be propagated throughout the network by hubs and repeaters. The original information will therefore need to be resent after waiting for the collision to be resolved, thereby incurring a significant
ON
“VLAN TECHNOLOGY”
SUBMITTED BY
Snehesh Bhoir
UNDER VALUABLE GUIDANCE
OF
MISS. SUCHITA
DIPLOMA IN COMPUTER ENGINEERING
PILLAI HOC POLYTECHNIC
RASAYANI
2013-14
Contents
Introduction
What are VLAN's?
Why use VLAN's?
How VLAN's work
Types of VLAN's
Types of Connections
Conclusion
Reference links
Introduction
A Local Area Network (LAN) was originally defined as a network of computers located within the same area. Today, Local Area
Networks are defined as a single broadcast domain. This means that if a user broadcasts information on his/her LAN, the broadcast will be received by every other user on the LAN. Broadcasts are prevented from leaving a LAN by using a router. The disadvantage of this method is routers usually take more time to process incoming data compared to a bridge or a switch. More importantly, the formation of broadcast domains depends on the physical connection of the devices in the network. Virtual Local Area Networks (VLAN's) were developed as an alternative solution to using routers to contain broadcast traffic. VLAN's also allow broadcast domains to be defined without using routers. Bridging software is used instead to define which workstations are to be included in the broadcast domain. Routers would only have to be used to communicate between two VLAN's.
What are VLAN's?
In a traditional LAN, workstations are connected to each other by means of a hub or a repeater. These devices propagate any incoming data throughout the network. However, if two people attempt to send information at the same time, a collision will occur and all the transmitted data will be lost. Once the collision has occurred, it will continue to be propagated throughout the network by hubs and repeaters. The original information will therefore need to be resent after waiting for the collision to be resolved, thereby incurring a significant