nanog mailing list archives
Re: [tt] IPv4 address length technical design
From: Eugen Leitl <eugen () leitl org>
Date: Thu, 4 Oct 2012 10:49:16 +0200
On Thu, Oct 04, 2012 at 05:10:00PM +0900, Masataka Ohta wrote:
Above describes your setting for the next protocol. There is not a lot of leeway in design space, I'm afraid.Just keep using IPv4. Masataka Ohta PS See ftp://chacha.hpcl.titech.ac.jp/IEEE-ST.ppt presented at a summer topical of IEEE photonic society.
Thanks for the Powerpoint, I've already seen it or an earlier version of it. My (minor) beef with it is that while you offload most of heavy lifting to photonics you still use electronics and lookup. It is however reasonably easy to do everything at effectively L2 with a photonic crossbar if you encode geography in the headers (you have a direct proximity metric on your link slots). (You can actually prototype this with Ethernet MACs, as 2^48 in square meters happens to be half the surface area of the Earth http://www.wolframalpha.com/input/?i=2^48+m^2 So MAC collisions are not very probable, if distributed optimally ;) If you do it in optics the protocol is completely different from IPv4/IPv6, so you would encapsulate and use it as a transport layer for legacy (ha!) protocols. P.S. Sorry for shit-stirring (and it ain't even Friday yet). I'll be good now.
Current thread:
- Re: IPv4 address length technical design, (continued)
- Re: IPv4 address length technical design George Herbert (Oct 03)
- RE: IPv4 address length technical design Tony Patti (Oct 03)
- Re: IPv4 address length technical design Valdis . Kletnieks (Oct 03)
- Re: IPv4 address length technical design Dave Crocker (Oct 03)
- Re: IPv4 address length technical design Jay Ashworth (Oct 03)
- Re: IPv4 address length technical design Jimmy Hess (Oct 03)
- Re: IPv4 address length technical design Valdis . Kletnieks (Oct 03)
- Re: IPv4 address length technical design David Conrad (Oct 03)
- Re: IPv4 address length technical design Eugen Leitl (Oct 03)
- Re: IPv4 address length technical design Masataka Ohta (Oct 04)
- Re: [tt] IPv4 address length technical design Eugen Leitl (Oct 04)
- Re: [tt] IPv4 address length technical design Masataka Ohta (Oct 04)
- Re: IPv4 address length technical design Barry Shein (Oct 04)
- Re: IPv4 address length technical design Mark Andrews (Oct 04)
- Re: IPv4 address length technical design George Herbert (Oct 04)
- Re: IPv4 address length technical design Jay Ashworth (Oct 04)
- Re: IPv4 address length technical design Barry Shein (Oct 05)
- Re: IPv4 address length technical design Jay Ashworth (Oct 05)
- RE: IPv4 address length technical design nanog (Oct 06)
- Re: IPv4 address length technical design William Herrin (Oct 05)
- RE: IPv4 address length technical design Spurling, Shannon (Oct 05)