[96246] in North American Network Operators' Group
Re: from the academic side of the house
daemon@ATHENA.MIT.EDU (Steven M. Bellovin)
Wed Apr 25 09:23:14 2007
Date: Wed, 25 Apr 2007 09:22:14 -0400
From: "Steven M. Bellovin" <smb@cs.columbia.edu>
To: Jim Shankland <nanog@shankland.org>
Cc: bmanning@karoshi.com, nanog@merit.edu
In-Reply-To: <E1HgNoL-0006Hd-Hx@mail.shankland.org>
Errors-To: owner-nanog@merit.edu
On Tue, 24 Apr 2007 09:24:13 -0700
Jim Shankland <nanog@shankland.org> wrote:
> (2) Getting this kind of throughput seems to depend on a fast
> physical layer, plus some link-layer help (jumbo packets), plus
> careful TCP tuning to deal with the large bandwidth-delay product.
> The IP layer sits between the second and third of those three items.
> Is there something about IPv6 vs. IPv4 that specifically improves
> perfomance on this kind of test? If so, what is it?
I wonder if the router forward v6 as fast.
--Steve Bellovin, http://www.cs.columbia.edu/~smb
