Introduction to Computer Networks and Cybersecurity

8

Virtual LAN, Class of Service, and Multilayer Networks

The learning goals for this chapter are as follows:

• Understand the structure and inherent advantages of a Virtual LAN (VLAN)
• Learn the switching and frame tagging methods employed in VLANs
• Explore the different scheduling techniques used to handle traffic based upon its class of service (CoS)
• Understand the structure and operation of the Asynchronous Transfer Mode (ATM)
• Learn the mechanisms used to transport IP traffic over ATM
• Understand the multiprotocol label switching (MPLS) and multilayer network (MLN) architectures

8.1 The Virtual LAN (VLAN-802.11q)

Two critical issues that are encountered in the development of a switched Ethernet are the mechanisms by which the performance and ...