ZyXEL GS2200-8HP User Guide - Page 153
Table 47, Label, Description
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Chapter 19 Port Security Table 47 Advanced Application > Port Security (continued) LABEL Active DESCRIPTION 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. Address Learning Limited Number of Learned MAC Address Apply Cancel Clear this check box to disable the port security feature. The Switch forwards all packets on this port. MAC address learning reduces outgoing broadcast traffic. For MAC address learning to occur on a port, the port itself must be active with address learning enabled. Use this field to limit the number of (dynamic) MAC addresses that may be learned on a port. 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. 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. Click Cancel to begin configuring this screen afresh. GS2200-8/24 User's Guide 153