[195432] in North American Network Operators' Group
Re: US/Canada International border concerns for routing
daemon@ATHENA.MIT.EDU (Bill Woodcock)
Tue Aug 8 20:11:00 2017
X-Original-To: nanog@nanog.org
From: Bill Woodcock <woody@pch.net>
Date: Tue, 8 Aug 2017 17:10:48 -0700
In-Reply-To: <CFEC2ABD93715E4B96AAD927F5AAB44C011C828E2B@DSXMBX2HE.ds.ad.adp.com>
To: "Hiers, David" <David.Hiers@cdk.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
--Apple-Mail=_B56EC145-CAEC-4F0E-ACDB-EDC903BE994E
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
charset=utf-8
> On Jul 20, 2017, at 7:01 AM, Hiers, David <David.Hiers@cdk.com> wrote:
> For traffic routing, is anyone constraining cross-border routing =
between Canada and the US? IOW, if you are routing from Toronto to =
Montreal, do you have to guarantee that the path cannot go through, say, =
Syracuse, New York?
No. In fact, Bell Canada / Bell Aliant and Telus guarantee that you =
_will_ go through Chicago, Seattle, New York, or Ashburn, since none of =
them peer anywhere in Canada at all.
Last I checked (November of last year) the best-connected commercial =
networks (i.e. not CANARIE) in Canada were Hurricane Electric, MTS =
Allstream, Primus, and Zip Telecom, all of which peer at three or more =
Canadian IXes. So, they=E2=80=99re capable of keeping traffic in Canada =
so long as the other end isn=E2=80=99t on Bell or Telus, which only sell =
U.S. bandwidth to Canadians.
In November, only 27% of intra-Canadian routes stayed within Canada; 64% =
went through the U.S. That=E2=80=99s way worse than five years ago, =
when 60% stayed within Canada, and 38% went through the U.S.
As has been pointed out, Canada has been building IXPs=E2=80=A6 Just =
not as fast as the rest of the world has. They=E2=80=99re behind the =
global average growth rate, and behind the U.S. growth rate, which is =
why the problem is getting worse. Bandwidth costs are falling faster =
elsewhere, so they=E2=80=99re importing more foreign bandwidth.
-Bill
--Apple-Mail=_B56EC145-CAEC-4F0E-ACDB-EDC903BE994E
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
filename=signature.asc
Content-Type: application/pgp-signature;
name=signature.asc
Content-Description: Message signed with OpenPGP
-----BEGIN PGP SIGNATURE-----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=C/kY
-----END PGP SIGNATURE-----
--Apple-Mail=_B56EC145-CAEC-4F0E-ACDB-EDC903BE994E--
