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| Chapter 17 Port Security |
| Table 42 Advanced Application > Port Security (continued) | |
| LABEL | DESCRIPTION |
| 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 |
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| address learning enabled. |
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| 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 |
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| learned MAC addresses ages out. MAC address aging out time can be set |
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| in the Switch Setup screen. The valid range is from “0” to “8192”. “0” |
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| means this feature is disabled. |
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| Apply | Click Apply to save your changes to the Switch’s |
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| Switch loses these changes if it is turned off or loses power, so use the |
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| Save link on the top navigation panel to save your changes to the non- |
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| volatile memory when you are done configuring. |
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| Cancel | Click Cancel to begin configuring this screen afresh. |
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| 147 |
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