Intel 480T - page 123

C H A P T E R 7 Virtual LANs (VLANs)

Typ es o f VL ANs

You can create VLANs based on these criteria:

•Physical port

•802.1Q tag

•Ethernet, Logical Link Control Service Advertising Protocol

(LLC SAP), or Logical Link Control Subnetwork Access

Protocol (LLC/SNAP) Ethernet protocol type

•MAC address

•A combination of these criteria

Port-Based VLANs

In a port-based VLAN, a VLAN name is given to a group of one or

more ports on the switch. A port can be a member of only one port-

based VLAN.

For example, on the switch in Figure7.1:

•Ports 1 through 4 are part of VLAN Marketing

•Ports 9 through 12 are part of VLAN Sales

•Ports 5 through 8 and 15 and 16 are in VLAN Finance.

Figure 7.1: Example of a port-based VLAN on the Intel®

NetStructure™ 480T routing switch

For the members of the different IP VLANs to communicate, the

traffic must be routed by the switch, even if they are physically part

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Sales

Marketing Finance