ZyXEL Communications ES-100, User Manual

Page: 156 / 232

Chapter 20 MAC
MES-2110 User’s Guide
156
20.5 The MAC Limit Configuration Screen
Use this screen to limit the number of MAC addresses that can be learned on a
port. Click Configuration > MAC Menu > MAC Limit Config to open the
following screen.
Figure 74 Configuration > MAC Menu > MAC Limit Config
The following table describes the labels in this screen.
Table 59 Configuration > MAC Menu > MAC Limit Config
LABEL DESCRIPTION
MAC Limit Function Use this to enable or disable the MAC address limit feature.
Port This is the port number.
Limit Quantity 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 MAC
Table Status screen.
Action Enable the MAC limit function on this port. The MES-2110
forwards frames whose MAC address(es) is in the MAC address
table on this port. frames with no matching MAC address(es) are
dropped.
Disable the MAC limit function to forwards all frames on this port.
Undo Click this to load your last saved settings.
Apply Click Apply to save your changes to the ZyXEL Device’s run-time
memory. The ZyXEL Device loses these changes if it is turned off
or loses power, so use the Save Settings link in the navigation
panel to save your changes to the non-volatile memory.