Chapter 19 Port Security

 

Table 44 Advanced Application > Port Security (continued)

 

LABEL

DESCRIPTION

 

Active

Select this check box to enable the port security feature on this port. The

 

 

Switch forwards packets whose MAC address(es) is in the MAC address

 

 

table on this port. Packets with no matching MAC address(es) are

 

 

dropped.

 

 

Clear this check box to disable the port security feature. The Switch

 

 

forwards all packets on this port.

 

 

 

 

Address

MAC address learning reduces outgoing broadcast traffic. For MAC

 

Learning

address learning to occur on a port, the port itself must be active with

 

 

address learning enabled.

 

 

 

 

Limited

Use this field to limit the number of (dynamic) MAC addresses that may

 

Number of

be learned on a port. For example, if you set this field to "5" on port 2,

 

Learned MAC

then only the devices with these five learned MAC addresses may access

 

Address

port 2 at any one time. A sixth device must wait until one of the five

 

 

learned MAC addresses ages out. MAC address aging out time can be set

 

 

in the Switch Setup screen. The valid range is from “0” to “16384”. “0”

 

 

means this feature is disabled.

 

 

 

 

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 begin configuring this screen afresh.

 

 

 

19.3 VLAN MAC Address Limit

Use this screen to set the MAC address learning limit on per-port and per-VLAN basis. Click VLAN MAC Address Limit in the Advanced Application > Port Security screen to display the screen as shown.

Figure 90 Advanced Application > Port Security > VLAN MAC Address Limit

 

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XGS-4728F User’s Guide