I would bet that most British Columbia traffic gets routed to Vancouver>Seattle. Just a hunch, but I suspect that connectivity capacity across Canada from British Columbia to the Eastern part of the country is pretty limited.
- R. ________________________________ From: NANOG <nanog-boun...@nanog.org> on behalf of Keenan Tims <kt...@stargate.ca> Sent: Wednesday, August 9, 2017 2:48 AM To: firstname.lastname@example.org Subject: Re: US/Canada International border concerns for routing On 2017-08-08 17:10, Bill Woodcock wrote: > 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. The major national networks (Bell, Rogers, Telus, Shaw, Zayo/Allstream) do peer with each other and some other large / old Canadian networks (e.g. MTS, SaskTel, Peer1) within Canada. While they do practice peering protectionism and only purchase transit out of country, the situation is not *quite* so bad that all traffic round-trips through the US. Of course if neither side of the conversation has at least one of those major networks as a transit upstream - which is most of the eyeballs and most of the important Canadian content - you'll see that hop through Chicago or Seattle (or worse). Which is exactly the way they like it. Keenan