Cabletron Systems DLE52-MA User Manual page 55

This effectively completes the configuration of a single VLAN,
assigning it to a port, and configuring the switch to forward the
frames received on that port to be forwarded with the VLAN
information included in the frame.
The Port VLAN List of any port on the device can also be checked at
any time using the Port Filtering Configuration screen. A list of all
ports eligible to transmit frames for a given VLAN will also be listed
on the VLAN Forwarding Configuration screen. Each port can also be
set to filter out (drop) incoming frames that have VLAN tags that do
not match with any of those in its Port VLAN List, and also filter out
all untagged frames received by the port. As a default neither function
is activated.
In this walkthrough, we will show how to display the Port VLAN List
of port 10 and set the port to filter out all untagged frames that it
receives.
20. On the 802.1Q VLAN Main Menu screen, use the arrow keys to
highlight the PORT FILTERING CONFIGURATION menu item.
Press ENTER. The Port Filtering Configuration screen displays.
21. Use the arrow keys to highlight the Port field.
22. Press the SPACE bar to step the field to display 2.
23. Use the arrow keys to highlight the Filter All Untagged Frames field.
24. Press the SPACE bar to toggle the field to display YES.
25. Use the arrow keys to highlight the SAVE command at the bottom of
the screen.
26. Press ENTER. The message "SAVED OK" displays. The Port
Filtering Configuration screen displays the Port VLAN List for port 2
and the Filtering All Untagged Names field is set to YES as shown in
Figure 3-13.
802.1Q VLAN User's Guide
Quick VLAN Walkthrough
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