Cabletron Systems 802.1Q Manual De Usuario

To select screens to assign switched network ports to VLANs, define new 
VLANs, and configure port filtering according to a VLAN list or 
untagged frames. Network users can be logically grouped into VLANs 
even if they span long physical distances over a vast, intricate physical 
network. The VLAN Local Management menu items listed on the 802.1Q 
VLAN Configuration Menu allow such VLANs to be configured on a 
network at the switched port of the device or SmartSwitch chassis. Also, 
some or all of the ports on the switch can be configured as GVRP ports, 
which enable frames received with a particular VLAN ID and protocol to 
be transmitted on a limited number of ports. This keeps the traffic 
associated with a particular VLAN and protocol to be isolated from the 
other parts of the network.

Before attempting the VLAN configuration, ensure that the device to be 
configured has been set for 802.1Q SWITCHING mode. The mode 
selection is a Local Management operation that is accessible through the 
General Configuration screen of the device.

The device resets when changing operational modes.