nanog mailing list archives

Re: Google Cloud and IX - Traffic behavior


From: Alain Hebert <ahebert () pubnix net>
Date: Mon, 19 Jun 2017 09:36:28 -0400

    Hi,

    Yes Stephen, we're talking the usual like GTT...

    And no latency wise they're about the same.  In the 35ms range.

But I still can't figure out the 10 x drop, that level of latency alone cannot be the factor.

    ( And Gordy...  what?!? )

-----
Alain Hebert                                ahebert () pubnix net
PubNIX Inc.
50 boul. St-Charles
P.O. Box 26770     Beaconsfield, Quebec     H9W 6G7
Tel: 514-990-5911  http://www.pubnix.net    Fax: 514-990-9443

On 06/16/17 19:42, Stephen Fulton wrote:
Alain,

When you refer to "normal peering" do you mean Internet transit? Or are these PNI's with Google? Do the GCLD instance you reach through "normal peering" have higher latency than through TorIX?

-- Stephen

On 2017-06-16 6:58 PM, Alain Hebert wrote:
     Hi,

Anyone aware of different traffic behavior depending if the target goes through normal peering than through an exchanges google exists in?

We're facing a weird issue where the same GCLD Instance can upload up to 200Mbps (Ref 1) if the target path goes through, lets say TorIX, but cannot get more than 20Mbps on similar hosts (8 of them) sittings on our peering links.

PS; Those sames hosts get up to their link limit ( 1Gbps ) between each others and others test points we have;

     PS: Wireshark capture show nothing abnormal;

     PS: Links aren't congested, and so on...

Ref 1 - 200Mbps is on a link rate-limited to 300Mbps. Its my only test point with a TorIX access




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