The switch restricts the number of MAC address learning to 9, and alerts when the number is exceeded, the number of Macs exceeded will not be learned by the port, but can be through the red forwarding (switch for unknown purpose MAC address forwarding principle), can also be configured in the VLANĦ. It is forbidden to learn MAC addresses, but will receive frames to be forwarded in red (the switch principle for unknown MAC address forwarding), or it can be configured in VLANsĥ, limit the number of MAC address learning, can be configured in port or VLAN Mac-address learning Disable action forward Prevent learning MAC addresses and discard any frames you receive, or configure them in VLANs Mac-address Learning Disable action Discard Prohibit Port learning MAC address, can prohibit MAC address learning function in port or VLAN mac-address blackhole 5489-987f-161a vlan 1 drop frame when source or destination is received in Vlan1 for this MacĤ. Configure the Black hole MAC address Table mac-address static 5489-98c0-7e34 gigabitethernet 0/0/1 VLAN 1 bind MAC address to interface G0/0/1 valid in Vlan1ģ. Second, the MAC Address Table Management commandĢ. One, the MAC address table is divided into three sheetsġ, Static MAC Address table, hand-bound, priority higher than the dynamic MAC address TableĢ, the dynamic MAC Address table, the switch receives the data frame will learn the source Mac into the MAC address tableģ, Black hole MAC Address table, manual binding or automatic learning, used to discard the specified MAC address In the switch, the cam (content addressable memory, the contents of the table) table, also known as the MAC Address table, which records the device connected to the switch's MAC address, port number, the VLAN belongs to the corresponding relationship.

The MAC address in the network is the constant physical address in the device, the control of the MAC address access control the switch port access, so port security is also the security of the Mac.

Huawei mac address table