What is EtherType? | FAQ | MAC Address Vendor Lookup
Frequently asked questions

What is EtherType?

A single MAC address range might be reserved for different applications depending on the extra data sent in the Ethernet frame. For instance, the application depends on EtherType. It's a 2-octet field following the Source MAC address. It helps determine which protocol is encapsulated in the frame payload.

Ethernet frame schema

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