Cisco 3750 mac address table aging

vlan mac-address table and timeouts - Cisco - Tek-Tips

If you do not save the configuration, they are lost. Port security and ARP table are two different concepts. Home Questions Tags Users Unanswered. Ask Question.


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  • Information About MAC Addresses;

Regarding Cisco port-security. Network Datagram.

ARP Timeout Value for Cisco 3750, Linux and Windows

Network 1, 3 3 silver badges 14 14 bronze badges. So mac address-table aging-time and switchport port-security aging time do the same thing? Not really, one is removing mac entries from mac address table and is always switch on. Another one by default is off, so by default port security is not removing any mac addresses.

vlan mac-address table and timeouts

But that could be switch on to remove and add PC's on a secure port without manually deleting the existing secure mac addresses while still limit the number of secure addresses on port. Network Feb 10 '17 at If I turn on port security and configure it with the following; the maximum number of mac addresses to 1, the violation mode to protect, the ageing time to 10 minutes.


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This prevents us from moving R1 to another interface on SW1 unless we change the static entry. Like I mentioned before we can also change a static entry so it will drop all traffic. I tried to replicate what you describe here on a Cisco production switch. This will give you a list of MAC addresses associated with that port.

If you only have one device on this port, only one MAC address will show up.

Cisco Nexus 3000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.0(3)U2(1)

These computers will have a MAC address, it comes with their network cards. Cisco switches are designed to have a se. Ask a question or join the discussion by visiting our Community Forum. If you like to keep on reading, Become a Member Now! Does anyone know what this "routed mac aging time" is, as opposed to the global time out? I wouldn't do this.. I would leave the CAM timers the same and adjust your arp timeout values on your routers to be in tune with your CAM setting.. Routed MAC aging time is exactly what it says.

How does a switch learn MAC Addresses

Once these learned mac-address has reached the configured age time seconds by default , the switch flushes out of its memory. Switch re-learns these by pings performed by each node.

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As far as global time out, I am not quite sure about it. But it seems if they are the same.

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