|VIRTUAL LOCAL AREA NETWORK (VLAN) SWITCHING CONFIGURATIONS |
|To: Professor Dr. R. I. Sharif |
|Dean, School of Science |
| |
|From: Sourav Sarker |
|ID# 2008100100008 |
|Department: I.T.E |
|Batch: 18th |
Virtual Local Area Networks (VLANs)
This paper will examine the drivers behind the progression of LAN configurations starting from the days of the repeating hub, progressing through LAN switches, and then focusing on a concept introduced in the mid-nineties, the Virtual LAN (VLAN). The paper will examine the perceived benefits of VLANs, how VLANs are configured, why VLANs and application areas of VLAN.
The evolution of the local area network (LAN) has followed a logical progression of improvements to tackle one problem at a time. LAN switches have essentially replaced repeating hubs in business environments. A conceptual software-driven special application of LAN switches, called Virtual LANs (VLANs), was introduced in the mid-nineties with a lot of hype. They promised cost effective router-like benefits with the added advantage of reduced system administration costs. As we approached and then entered into the 21st century, other technological advances challenged the VLAN, and ultimately displaced it. This paper will builds the case for VLANs and then examines some of these alternate technologies.
Purposes of VLANs:
User productivity and network adaptability are key drivers for business growth and success. Implementing VLAN technology enables a network to more flexibly support business goals. The primary benefits of using VLANs are as follows:
References: Layer 3 switching demystified (2000, July 3). McLean, R. (1998, May). Why VLANs are virtually useless. Passmore, D. (2000, October). VLANs reborn. Business Communications Review. Passmore, D. and Freeman, J. (1996). The virtual LAN technology report. Stallings, W. (2000). Data and computer communications (6th ed.). Upper Saddle River, NJ: Prentice-Hall. Steinke, S. (1997, July 1). VLANs and broadcast domains. Network Magazine. Tyson, J. How LAN switches work. Varadarajan, S. (1997, August 14). Virtual local area networks. Virtual LANS. Flexible network segmentation for high-speed LANs (1997).