Analysis And Implementation. The Ieee802.1q Agreement

With the rapid development of nework technologies, the Ethernet Switch has been the absolute necessary network device. VLAN will help Ethernet Switch to work more effectively.This paper introduce the development situation, design idea, basic principle and features about VLAN technology, discuss VLAN international standard IEEE802.1Q in details, then present the design detail of develop VLAN software package according to IEEE802.1Q standard, finally expatiate implementation of VLAN software package on BCM5328 switch chip. VLAN software package can run correctly in network environment and achieve the expected result.The use of the versatile VLAN software package accelerates the development of the switch product and it is useable to increase the competition of switch product.