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NetAtlas Enterprise Ethernet Switch Manager User’s Guide
Chapter 16 Ethernet Port Configuration 150
The following table describes the fields in this screen.
16.12 Port Mirroring
Port mirroring allows you to copy traffic going from one or all ports to another or all ports in
order that you can examine the traffic from the mirror port (the port you copy the traffic to)
without interference.
You must first select a monitor port. A monitor port is a port that copies the traffic of another
port. After you select a monitor port, configure a mirroring rule in the related fields.
Follow the steps below to configure the Port Mirroring screen.
1 In the Device Panel list, select a device and then right-click.
2
Click Configuration > Ethernet Port Configuration > Port Mirroring .
3 Select a device and the port(s) to which you want to apply this configuration.
Figure 103 Ethernet Port Configuration: Port Mirroring
Table 76 Ethernet Port Configuration: Port Security
TABLE DESCRIPTION
Active Select this check box to enable the port security feature on selected ports.
Address Learning 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. Select the Address Learning check box.
Limited Number
of Learned MAC
Address
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 16K. 0 means this feature is disabled, so the switch will learn
MAC addresses up to the global limit of 16K.
MAC Freeze Click MAC Freeze to convert all current dynamic MAC addresses to static MAC
addresses. When you click the MAC Freeze button, the MAC Address Learning
check box is cleared but port security becomes Active .
Apply Click Apply to save the changes.