nanog mailing list archives
Re: IPv4 address length technical design
From: George Herbert <george.herbert () gmail com>
Date: Sun, 7 Oct 2012 00:37:38 -0700
On Oct 6, 2012, at 11:35 AM, Barry Shein <bzs () world std com> wrote:
We can map from host names to ip addresses to routing actions, right? So clearly they're not unrelated or independent variables. There's a smooth function from hostname->ipaddr->routing.
No. Not just no, but hell no at the asserted communativity there, Barry. That's not even Wrong... And that's the point. DNS to IP is in no way a smooth function. Hell no, for many networks. It's only true for the boringest customers. Try actual enterprise endpoints, or service providers. IP to Routing is not smooth at predictable scales. Yes, it's in blocks, but a top-down view is at best fractal discontinuity. IP to routing is smoother in IPv6 but as routing has two components - physical location and net path - was made smoother in one only ( net path, and to the degree that's smooth in physical location by accident...). George William Herbert Sent from my iPhone
Current thread:
- Re: IPv4 address length technical design, (continued)
- 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 Steven Noble (Oct 07)
- RE: IPv4 address length technical design Paul Vinciguerra (Oct 07)
- Re: IPv4 address length technical design William Herrin (Oct 07)
- Re: IPv4 address length technical design George Herbert (Oct 07)
- Re: IPv4 address length technical design Jay Ashworth (Oct 07)
- Re: names are not numbers, was IPv4 address length technical design John Levine (Oct 06)
- Re: names are not numbers, was IPv4 address length technical design Joe Hamelin (Oct 06)
- Re: names are not numbers, was IPv4 address length technical design Barry Shein (Oct 07)
- Re: IPv4 address length technical design William Herrin (Oct 07)
- Re: IPv4 address length technical design Tony Finch (Oct 08)