nanog mailing list archives
Re: IPv4 address length technical design
From: Valdis.Kletnieks () vt edu
Date: Thu, 04 Oct 2012 14:25:47 -0400
On Thu, 04 Oct 2012 09:57:34, Johnny Eriksson said:
Valdis.Kletnieks () vt edu wrote:And the -10s and -20s were the major reason RFCs refer to octets rather than bytes, as they had a rather slippery notion of "byte" (anywhere from 6 to 9 bits, often multiple sizes used *in the same program*).Not quite correct. Anywhere from 1 to 36 bits, and not spanning a 36-bit word boundary. Essentialy what is now known as a bit field.
Right - but in actual programming practice, code tended to distinguish between a "byte" and "N bit wide field of flags or whatever". And bytes as character storage ran from 6 to 9 bits depending on the charset in use.
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- Re: IPv4 address length technical design, (continued)
- Re: IPv4 address length technical design George Herbert (Oct 03)
- Re: IPv4 address length technical design Tony Finch (Oct 04)
- Re: IPv4 address length technical design Owen DeLong (Oct 04)
- Re: IPv4 address length technical design Barry Shein (Oct 03)
- Re: IPv4 address length technical design Cutler James R (Oct 03)
- Re: IPv4 address length technical design Robert E. Seastrom (Oct 03)
- Re: IPv4 address length technical design Bjorn Leffler (Oct 04)
- Re: IPv4 address length technical design Scott Weeks (Oct 03)
- Re: IPv4 address length technical design George Herbert (Oct 03)
- Re: IPv4 address length technical design Johnny Eriksson (Oct 04)
- Re: IPv4 address length technical design Valdis . Kletnieks (Oct 04)
- RE: IPv4 address length technical design Barry Shein (Oct 05)
- Re: IPv4 address length technical design Michael Thomas (Oct 05)
- Re: IPv4 address length technical design David Miller (Oct 05)
- Re: IPv4 address length technical design Tony Finch (Oct 08)
- Re: IPv4 address length technical design William Herrin (Oct 05)
- Re: IPv4 address length technical design Barry Shein (Oct 06)
- Re: IPv4 address length technical design George Herbert (Oct 06)
- Re: IPv4 address length technical design Barry Shein (Oct 06)
- Re: IPv4 address length technical design Cutler James R (Oct 06)
- Re: IPv4 address length technical design Barry Shein (Oct 07)
- Re: IPv4 address length technical design Michael Thomas (Oct 05)