Re: What services does Microsoft AS8075 provide when peering at IXPs?

[Mike Hammett <nanog () ics-il net>]

"your direct peering can be slow and congested, while 
there's actually a longer but faster path through someplace else...." 

Possible, but unlikely for most networks. 




----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 



Midwest Internet Exchange 
http://www.midwest-ix.com 


----- Original Message -----

From: "Valdis Kletnieks" <Valdis.Kletnieks () vt edu> 
To: "Eric A Louie" <elouie () yahoo com> 
Cc: "NANOG List" <nanog () nanog org> 
Sent: Sunday, April 3, 2016 6:04:14 PM 
Subject: Re: What services does Microsoft AS8075 provide when peering at IXPs? 

On Fri, 01 Apr 2016 18:02:56 -0000, Eric A Louie via NANOG said: 
> I suppose we have a customer who is an Azure customer that wants to know if 
> their Azure traffic will stay in our network or still go through the Internet. 

As a practical matter, if they're using the answer for a security baseline, 
they're doing it wrong - they should be planning that based on the assumption 
that their traffic *will* ride the rails of the commodity Internet (due to 
outages or whatever). 

Similarly, if they're looking at it for performance/latency, they need to 
fix their assumptions - your direct peering can be slow and congested, while 
there's actually a longer but faster path through someplace else....