Chapter 8 VLAN

The following table describes the labels in this screen.

Table 19 Port Based VLAN Setup

LABEL

DESCRIPTION

Setting

Choose from All connected or Port isolation.

Wizard

All connected means all ports can communicate with each other, that is, there are no

 

virtual LANs. All incoming and outgoing ports are selected (see Figure 43 on page 94).

 

This option is the most flexible but also the least secure.

 

Port isolation means that each port can only communicate with the CPU

 

management port and cannot communicate with each other. All incoming ports are

 

selected while only the CPU outgoing port is selected (see Figure 44 on page 94). This

 

option is the most limiting but also the most secure.

 

After you make your selection, click Apply (top right of screen) to display the screens

 

as mentioned above. You can still customize these settings by adding/deleting

 

incoming or outgoing ports, but you must also click Apply at the bottom of the screen.

 

 

Incoming

These are the ingress ports; an ingress port is an incoming port, that is, a port through

 

which a data packet enters. If you wish to allow two subscriber ports to talk to each

 

other, you must define the ingress port for both ports. The numbers in the top row

 

denote the incoming port for the corresponding port listed on the left (its outgoing port).

 

CPU refers to the switch management port. By default it forms a VLAN with all Gigabit

 

ports. If it does not form a VLAN with a particular port then the switch cannot be

 

managed from that port.

 

 

Outgoing

These are the egress ports; an egress port is an outgoing port, that is, a port through

 

which a data packet leaves. If you wish to allow two subscriber ports to talk to each

 

other, you must define the egress port for both ports. CPU refers to the switch

 

management port. By default it forms a VLAN with all Gigabit ports. If it does not form a

 

VLAN with a particular port then the switch cannot be managed from that port.

 

 

Apply

Click Apply to save your changes to the switch’s run-time memory. The switch loses

 

these changes if it is turned off or loses power, so use the Save link on the top

 

navigation panel to save your changes to the non-volatile memory when you are done

 

configuring.

 

 

Cancel

Click Cancel to start configuring the screen again.

 

 

 

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GS-3012/GS-3012F User’s Guide