Ethernet LAN Node Address Size
Question
What is the size of the unique address used to identify each node on an Ethernet LAN?
Answers
Explanations
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The size of the unique address used to identify each node on an Ethernet LAN is 6 bytes, also known as the Media Access Control (MAC) address.
A MAC address is a unique identifier assigned to network interface controllers (NICs) for use as a network address in communications within a network segment. It is a hardware address that is burned into the NIC during manufacturing and consists of 48 bits or 6 bytes.
The MAC address is used to uniquely identify each device on the network and is typically used by the Data Link layer of the OSI model to ensure that data is transmitted to the correct device on the network.
The first three bytes of the MAC address are assigned by the IEEE to identify the manufacturer of the NIC, while the last three bytes are assigned by the manufacturer to identify the specific NIC.
In summary, the size of the unique address used to identify each node on an Ethernet LAN is 6 bytes or the MAC address, which is used by the Data Link layer to ensure that data is transmitted to the correct device on the network.
