Types Of Vlans; Port-Based Vlans - Extreme Networks ExtremeWare 7.2e Installation And User Manual

Virtual LANs (VLANs)

Types of VLANs

VLANs can be created according to the following criteria:
• Physical port
• 802.1Q tag
• Ethernet, LLC SAP, or 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. All ports
are members of the port-based VLAN default. Before you can add any port to another port-based VLAN,
you must remove it from the default VLAN, unless the new VLAN uses a protocol other than the
default protocol any. A port can be a member of only one port-based VLAN.
On the Summit 400 switch in Figure 13, ports 9 through 14 are part of VLAN Marketing; ports 25
through 29 are part of VLAN Sales; and ports 21 through 24 and 30 through 32 are in VLAN Finance.
Figure 13: Example of a port-based VLAN on the Summit 400 switch
Finance
Marketing
Sales
ES4K005A
For the members of the different IP VLANs to communicate, the traffic must be routed by the switch.
This means that each VLAN must be configured as a router interface with a unique IP address.
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