Chapter 15 VLAN

Table 77 VLAN Configuration: 802.1Q: Modify (continued)

LABEL

DESCRIPTION

VLAN Name

Enter a descriptive name for identification purposes.

 

 

Static VLAN

Click on a port in a list to add the selected port to the port list. If a port is not on

 

any of the three port lists, then it is a normal tagged port. Refer to the following

 

table for the VLAN port type descriptions.

 

 

Egress Ports

Select the port(s) to belong to this VLAN.

 

 

Forbidden Ports

This is a port that is blocked from joining a VLAN group. No frames are

 

transmitted through this port.

 

 

Untag Port

This is a port that does not tag all outgoing frames transmitted.

 

 

VLAN Status

Click on a port in the Egress Ports list to add the selected port to the VLAN

Preview

Status Preview list. If a port is not selected from any of the three port lists, then

 

it is a normal tagged port. Refer to Table 78 on page 160 for the VLAN port type

 

descriptions.

 

 

OK

Click OK to save the changes and close this screen.

 

 

Cancel

Click Cancel to close this screen. All unsaved changes will be lost.

 

 

"A forbidden port cannot be an egress port.

The following table describes the labels in this screen for each VLAN port type.

Table 78 VLAN Port Type Descriptions

LABEL

DESCRIPTION

Egress Ports

A port that is in the egress list in a VLAN. Only select this if the connected

 

device supports IEEE 802.1Q VLAN.

 

 

Forbidden Ports

A port that is blocked from joining a VLAN group. No frames are transmitted

 

through this port.

 

 

Untag Ports

A port that does not tag all outgoing frames transmitted.

 

 

Normal Tagged Port

A port that joins a VLAN group using GVRP. Outgoing frames are tagged on

 

this port.

 

 

15.2.2 Removing a VLAN

In the VLAN Configuration screen, select a VLAN and click Delete.

15.3 Introduction to Port-based VLANs

Port-based VLANs are VLANs where the packet forwarding decision is based on the destination MAC address and its associated port.

Port-based VLANs require allowed outgoing ports to be defined for each port. Therefore, if you wish to allow two subscriber ports to talk to each other, for example, between conference rooms in a hotel, you must define the egress (an egress port is an outgoing port, that is, a port through which a data packet leaves) for both ports.

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