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Shim6, was: Re: filtering /48 is going to be necessary

Subject: Shim6, was: Re: filtering /48 is going to be necessary
From: mohta at necom830.hpcl.titech.ac.jp (Masataka Ohta)
Date: Fri, 16 Mar 2012 09:05:41 +0900
In-reply-to: <CADVasu7g61FeQX3zpD_eORiNyUmM5st34r2qknauo9L9DL_AjQ@mail.gmail.com>
References: <CAPWAtbJx56qyroisNYmB=0q8dDYMixfZBfQwDTVxmW=Y6mhP6w@mail.gmail.com> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <m2d38gf8p7.wl%[email protected]> <[email protected]> <m2aa3kf6qx.wl%[email protected]> <[email protected]> <CADVasu7g61FeQX3zpD_eORiNyUmM5st34r2qknauo9L9DL_AjQ@mail.gmail.com>

james machado wrote:

>> 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.

> I found this bit of research from 2007 (
> http://www.cise.ufl.edu/~wlu/papers/tcam.pdf ).  It seems to me there
> are probably more ways to mix and match different types of ram to be
> able to deal with this beast.

But it's not fixed time.

Worse, it synthesis IPv6 table from the current IPv4 ones, which
means the number of routing table entries is a lot less than 1M.

						Masataka Ohta

References:
- filtering /48 is going to be necessary
  - From: jsw at inconcepts.biz (Jeff Wheeler)
- filtering /48 is going to be necessary
  - From: iljitsch at muada.com (Iljitsch van Beijnum)
- filtering /48 is going to be necessary
  - From: joelja at bogus.com (Joel jaeggli)
- Shim6, was: Re: filtering /48 is going to be necessary
  - From: iljitsch at muada.com (Iljitsch van Beijnum)
- Shim6, was: Re: filtering /48 is going to be necessary
  - From: dougb at dougbarton.us (Doug Barton)
- Shim6, was: Re: filtering /48 is going to be necessary
  - From: rs at seastrom.com (Robert E. Seastrom)
- Shim6, was: Re: filtering /48 is going to be necessary
  - From: bicknell at ufp.org (Leo Bicknell)
- Shim6, was: Re: filtering /48 is going to be necessary
  - From: gih at apnic.net (Geoff Huston)
- Shim6, was: Re: filtering /48 is going to be necessary
  - From: randy at psg.com (Randy Bush)
- Shim6, was: Re: filtering /48 is going to be necessary
  - From: gih at apnic.net (Geoff Huston)
- Shim6, was: Re: filtering /48 is going to be necessary
  - From: randy at psg.com (Randy Bush)
- Shim6, was: Re: filtering /48 is going to be necessary
  - From: mohta at necom830.hpcl.titech.ac.jp (Masataka Ohta)
- Shim6, was: Re: filtering /48 is going to be necessary
  - From: hvgeekwtrvl at gmail.com (james machado)

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