[151303] in North American Network Operators' Group
Re: Shim6, was: Re: filtering /48 is going to be necessary
daemon@ATHENA.MIT.EDU (Eugen Leitl)
Thu Mar 15 10:42:37 2012
Date: Thu, 15 Mar 2012 15:41:35 +0100
From: Eugen Leitl <eugen@leitl.org>
To: William Herrin <bill@herrin.us>, NANOG list <nanog@nanog.org>
In-Reply-To: <CAP-guGV1mr=U6KHw4a2pc=YKLzxs9f4_d61oF4-SJiOzqhnjBg@mail.gmail.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Thu, Mar 15, 2012 at 10:25:46AM -0400, William Herrin wrote:
> Geographic routing strategies have been all but proven to irredeemably
> violate the recursive commercial payment relationships which create
> the Internet's topology. In other words, they always end up stealing
> bandwidth on links for which neither the source of the packet nor it's
> destination have paid for a right to use.
>
> This is documented in a 2008 Routing Research Group thread.
> http://www.ops.ietf.org/lists/rrg/2008/msg01781.html
>
> If you have a new geographic routing strategy you'd like to table for
> consideration, start by proving it doesn't share the problem.
I think the problem can be tackled by implementing this in
wireless last-mile networks owned and operated by end users.
(Obviously the /64 space is enough to carry that information.
Long-range could be done via VPN overlay over the Internet).
This will reduce the local chatter for route discovery and remove
some of the last-mile load on wired connections, which is in
ISPs' interest. I think we'll see some 1-10 GBit/s effective
bandwidth in sufficiently small wireless cells.
If this scenario plays out, this will inch up to low-end gear
like Mikrotik and eventually move to the core.
I don't think this will initially happen in the network core for the
reasons you mentioned.
