3com 3CDSG8 User Guide

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VLANS  
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•  If the Packet Type is set to Tagged, the port will drop untagged packets and will only send 
and receive tagged packets. Tagged packets will be dropped unless the port is a member 
of the VLAN identified by the VLAN tag in the packet. The PVID has no effect in this case.  
7.2
  VLAN Port Config 
 
This page allows you to configure the VLAN parameters for individual ports. VLANs are powerful 
but can be difficult to set up properly. If you are unfamiliar with VLANs please see the 
Introduction to VLANs. Each row of the table corresponds to one port or trunk; trunked ports 
cannot be configured individually. The columns of the table are used as follows: 
•  Port/Trunk - The front-panel port number or the ID of a trunk.  
•  VLAN Aware Enabled - VLAN aware ports are able to use VLAN tagged frames to 
determine the destination of the frame. Click to enable or disable VLAN awareness mode 
for this port. (Default: Enabled)  
•  Ingress Filtering Enabled - If enabled, incoming frames for VLANs which do not include 
this ingress port as a member will be discarded. (Default: Disabled)