[151287] in North American Network Operators' Group
Re: Shim6, was: Re: filtering /48 is going to be necessary
daemon@ATHENA.MIT.EDU (Masataka Ohta)
Thu Mar 15 00:20:07 2012
Date: Thu, 15 Mar 2012 13:18:04 +0900
From: Masataka Ohta <mohta@necom830.hpcl.titech.ac.jp>
To: nanog@nanog.org
In-Reply-To: <m2aa3kf6qx.wl%randy@psg.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Randy Bush wrote:
> none of which seem to move us forward. i guess the lesson is that, as
> long as we are well below moore, we just keep going down the slippery,
> and damned expensive, slope.
As long as we keep using IPv4, we are mostly stopping at /24 and
must stop at /32.
But, see the subject. It's well above moore.
For high speed (fixed time) routed look up with 1M entries, SRAM is
cheap at /24 and is fine at /32 but expensive and power consuming
TCAM is required at /48.
That's one reason why we should stay away from IPv6.
Masataka Ohta
