[195433] in North American Network Operators' Group
Re: US/Canada International border concerns for routing
daemon@ATHENA.MIT.EDU (TR Shaw)
Tue Aug 8 20:20:02 2017
X-Original-To: nanog@nanog.org
From: TR Shaw <tshaw@oitc.com>
Date: Tue, 8 Aug 2017 20:19:56 -0400
In-Reply-To: <FB841628-1AB3-4084-978C-FA0AFFA68EC6@pch.net>
To: Bill Woodcock <woody@pch.net>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
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Bill,
What does Bell buying MTS do? Does it change your statement or will the =
MTS portion of Bell still peer locally?
Tom
> On Aug 8, 2017, at 8:10 PM, Bill Woodcock <woody@pch.net> wrote:
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>> 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?
>=20
> 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.
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> 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.
>=20
> 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.
>=20
> 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.
>=20
> -Bill
>=20
>=20
>=20
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