ZyXEL Communications metrogigabit switch manual Vlan MAC Address Limit, 208

Chapter 19 Port Security

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 99 Advanced Application > Port Security > VLAN MAC Address Limit

The following table describes the labels in this screen.

Table 51 Advanced Application > Port Security > VLAN MAC Address Limit

LABEL	DESCRIPTION
Active	Select this option to activate this rule.
Port	Enter the number of the port to which this rule is applied.
VID	Enter the VLAN identification number.
Limit Number	Use this field to limit the number of (dynamic) MAC addresses that may
	be learned on a port in a specified VLAN. For example, if you set this field
	to "5" on port 2, then only the devices with these five learned MAC
	addresses may access port 2 at any one time. A sixth device would have
	to wait until one of the five learned MAC addresses aged 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.
Alarm	Alarm threshold of learned MAC address by VLAN
Threshold
Add	Click Add 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 reset the fields to your previous configuration.
Clear	Click Clear to clear the fields to the factory defaults.
Index	This field displays the index number of the rule. Click an index number to
	change the settings.

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MGS3700-12C User’s Guide