The Ethernet header

Ethernet (vlan) header

Having spent quite a lot of time in the last year or so writing Ethernet driver software, I find myself looking at this picture every now and then, when trying to decipher a tcpdump file or just random traces of Ethernet packages in an error log. To save some time trying to find this picture or a similar one – I thought I might as well add it here.

Courtesy of Wikipedia.

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