On 11/12/24 17:54, Lew Wolfgang wrote:
Of course you're correct!
So, what else is new? 😉
48-bits in a MAC address. That makes a bit more sense. After all, /64 is a nice power of two.
It's amazing, Ethernet addressing was developed in 1973. How prescient was Bob Metcalfe and his team to settle on 48-bit addressing! It's funny what one remembers. I recall sitting on the toilet at work in 1976 reading a EDN magazine article talking about how packet switched networks were the wave of the future. It was ten years later when I found myself pulling that yellow Thicknet coax around to set up our first Ethernet subnet. Now look at what we have!
Look up Ethernet Blue Book, to see the first official spec from 1980. However, originally, Ethernet had an 8 bit MAC address, just like ARCnet.