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#Disable mac address learning within a vlan series#

Interface configuration mode or in VLAN configuration mode.Proxmox virtual router. I had need to get VMs based on IP, but, not particular IPs, just IPs in a certain subnet. To revert to the default action of disablingĬonfiguring MAC Addresses Configuring Static The port with the lower interface index when such a loop is detected by using You can now configure the action of bringing down Release 6.0(2)U3(1), when a loop was detected between two ports, MAC learning Use undo mac-address mac-learning enableto disable MAC address learning globally, on an interface, or on a VLAN. Use mac-address mac-learning enable to enable MAC address learning globally, on an interface, or on a VLAN. This movement of MAC addresses between ports can cause loops. MAC address table commands > mac-address mac-learning enable. Limit the number of times that a MAC address moves from one port to another. If you downgrade the image to a release lower than 7.0(3)I7(3), you may not be able to use the functionality nor will youīe able to remove the CLI from configuration. Support disabling and re-enabling MAC address learning on Layer 2 interfaces.

#Disable mac address learning within a vlan series#

Beginning with Cisco NX-OS Release 7.0(3)I7(3), Cisco Nexus 3232C, Cisco Nexus 3264Q, and Cisco Nexus 3164Q Series switch.

Therefore, the proper age of theĪddress-table CLI command does not display the multicast MAC entries.Īddress-table multicast CLI command to check the Layer 2 entries. Release 7.0(3)I2(1), the aging of the mac-address is not incrementing in theĪddress-table CLI command. Guidelines and limitations for configuring the MAC address tables: Specified number of seconds, it is removed from the address table. The switch uses an aging mechanism,ĭefined by a configurable aging timer, so if an address remains inactive for a The address table can store a number of unicast and non-IP multicast addressĮntries without flooding any frames. A non-IP multicast address can accept more than one interface In addition, you can enter a non-IP multicast address as a staticallyĬonfigured MAC address. These static MAC entries are retained across a reboot

You can also enter a MAC address, which is termed a static MACĪddress, into the table. The switch then forwards subsequentįrames to a single LAN port without flooding all LAN ports. The destination station replies, the switch adds its relevant MAC sourceĪddress and port ID to the address table. MAC destination address not listed in its address table, it floods the frame toĪll LAN ports of the same VLAN except the port that received the frame. The switch dynamically builds the address table by using the MAC

Limiting the number of MAC addresses protects the switch from flooding of the Ethernet switching table (also known as the MAC. MAC limiting enhances port security by limiting the number of MAC addresses that can be learned within a VLAN. When the switch receives a frame, it associates the mediaĪccess control (MAC) address of the sending network device with the LAN port on MAC move limiting detects MAC movement and MAC spoofing on access interfaces. To switch frames between LAN ports, the switch maintainsĪn address table.

Triggering the Layer 2 Consistency Checker.

Verifying the MAC Address Configuration.

Guidelines for Configuring the MAC Address Tables.

This chapter contains the following sections: