Asante Technologies 6200 manual Vlan Tagged Expansion Ports

Overview

normal port can belong to only one VLAN at a time.When a normal port belongs to a particular VLAN, all frames received at the port are classified to the VLAN of the port.The received broadcast/Multicast packets, or received Unicast packets with unknown destination, on this port, will be flooded only to ports that belong to the same VLAN as the received port.To configure a port to be a normal port, the tagging mode of the port must be Disabled. See "Toggle VLAN Tagging" for details on configuring a normal port.

VLAN Tagged (Expansion) Ports

Any port of the IntraSwitch can act as a tagged port (expansion port).You can connect two compatible IntraSwitches via tagged ports and thus communicate between VLANS on the two switches.To make a port a tagged port, its tagging mode must be Enabled. Frames transmitted on a tagged port carry the VLAN ID in their tag field and frames received on a tagged port are classified based on the VLAN ID in the frame's tag field.A tagged port must be connected to another tagged port only since all un-tagged frames on the tagged port are filtered.All received unknown unicast and broadcast/multicast frames on a tagged port are flooded to ports belonging to the VLAN to which the received frames are classified.

See "Toggle VLAN Tagging" for details on enabling a tagged port and "Overview: Using tagging to connect VLANs" for details on mapping a tagged port to more than one VLAN.

The purpose of a tagged port is to provide connectivity between two or more IntraSwitches such that they share some or all of the system VLAN information between them.A graphic example is shown in Figure 9-3.

▲Important! The tagged port feature can only be used to connect two Asanté Switches.

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