TOR-SW-1#show mac-address-table address 3C:2C:30:B6:0B:63ĭestination Address Address Type VLAN Destination PortģC:2C:30:B6:0B:63 Dynamic 10 **FastEthernet1/0/4** Show mac-address-table
A Microsoft Windows system would list a MAC address as 12-34-56-78-9A-BC whereas a Cisco switch would list it as 1234.5678.9abc.
Each host connected to the network should maintain its own ARP table.Įnter the following command to find port details by MAC address Ethernet addresses, also known as MAC (Media Access Control) addresses, are 6 bytes or 48 bits in length, typically written in hexadecimal form. If no ARP entry exists, an ARP broadcast is sent out, and the table is updated with the response. As you see these are two highly distinct concepts. show mac-address-table To display the MAC address table, use the show mac-address-table command in privileged EXEC mode.
Cisco show mac address on port manual#
Layer 2) a frame destinated to MAC X please forward through port Y. Cisco ASR 901 Manual Online: Show Mac-Address-Table. Basically it means: if you want to switch (i.e. Your switch should have a MAC/CAM Table as a layer of two devices, whereas The ARP address table is used to map MAC Addresses to IP addresses. 2- A MAC table is a mapping between a MAC address and a port on a switch. These usually expire every 5 minutes and are updated by reading the source address of the frame entering the interface. The difference between MAC address and ARP table is The MAC address table is used by the switch to map MAC Addresses to a specific interface on the switch. You can leave off interface X to see all mac addresses of devices. If youre looking for the mac on those devices, do a show mac address-table dynamic interface X where X is the interface on which the device is connected. Show cdp neighbors Using MAC address table cdp neighbors will show you other Cisco devices and on what port they are attached.
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