Dell PowerConnect 3024 User Manual page 41

VLAN Membership
This matrix allows for real-time management of up to 64 VLANs. To add a port to a VLAN, position the cursor in the desired matrix location and toggle the
options with the space bar.
<U>: Port is a member of the VLAN. All packets transmitted by the port will be untagged, i.e., not carry a tag and therefore not carry VLAN or CoS
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information.
<T>: Port is a member of the VLAN. All packets transmitted by the port will be tagged, i.e., carry a tag and therefore carry VLAN or CoS information.
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<BLANK>: Port is not a member of the VLAN. Packets associated with this VLAN will not be transmitted by the port.
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The VLAN tagging option is a standard set by the IEEE to facilitate the spanning of VLANs across multiple switches. For more information, see the "Appendix"
and IEEE Std 802.1Q-1998 Virtual Bridged Local Area Networks.
PVID Settings
In the Port VLAN ID Setup screen, you can specify the PVID for each port on your switch. All untagged packets entering the switch are tagged by default with
the ID specified by the port's PVID.
CoS Settings
Port Priority allows the user to specify which ports have greater precedence in situations where traffic may be buffered in the switch due to congestion. The
ports with a setting of "high" will transmit their packets before those with a "normal" setting. The settings on this page only affect ingress packets that are
not already tagged for priority. To raise the priority of a given port, switch the port's setting from "normal" to "high". The default and normal setting for a port
is "normal".