3 ms·
I've heard a similar story about Asynchronous Transfer Mode. An ATM cell is 53 bytes long, which seems like a really weird number. The US wanted it to be 64 b
by jwalton 7y ago
I've heard a similar story about Asynchronous Transfer Mode. An ATM cell is 53 bytes long, which seems like a really weird number. The US wanted it to be 64 bytes as they felt this was optimal for them, everyone else wanted it to be 32 bytes, so CCITT split the difference, and made it 48 bytes plus a 5 byte header.
- dfox 7y agoThis is somewhat good idea of how standardization works, but in this case it is not entirely correct. The argument there was essentially that ATM with E1-like framing (and thus somewhat different and longer header) could be used across whole france for voice beare channels without echo cancelation. The 5+48 byte with HEC framing variant at least in theory also satisfies this (somewhat nonsencial) requirement.