Jeremy caught the issue and reached out to Amazon a couple of weeks ago regarding the areas.

It might help for those having issues to reach out to Amazon directly to knock it loose on their side.

On Fri, Sep 6, 2024, 12:36 PM Isaiah Olson <iolson@paulbunyan.net> wrote:

It looks like Amazon’s port Ethernet6/1/1 on the MICE Core switch has some pretty significant errors.

 

From: MICE Discuss <MICE-DISCUSS@LISTS.IPHOUSE.NET> On Behalf Of Miles McCredie
Sent: Friday, September 06, 2024 12:12 PM
To: MICE-DISCUSS@LISTS.IPHOUSE.NET
Subject: Re: [MICE-DISCUSS] [EXTERNAL] - [MICE-DISCUSS] Odd AWS transfer issue

 

Maybe someone could check for errors on the MICE ports for Atomic Data and Amazon.

 

Assuming the MICE ports are clean, it is probably worth following up with the Amazon NOC, peering-to@amazon.com.  They did some work on their Minneapolis peering routers recently though I’m not sure what they were doing.

 

 

 

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Miles McCredie
Principal Network Engineer II-Core IP

Office: 6052755192
Miles.McCredie@midco.com

Midco.com

Let's go beyond.

From: MICE Discuss <MICE-DISCUSS@LISTS.IPHOUSE.NET> On Behalf Of Danny Meister
Sent: Friday, September 6, 2024 11:41 AM
To: MICE-DISCUSS@LISTS.IPHOUSE.NET
Subject: [EXTERNAL] - [MICE-DISCUSS] Odd AWS transfer issue

 

CAUTION: This email originated from outside of MIDCO.
Do not click links or open attachments unless you recognize the sender and know the content is safe.

Good Afternoon,

 

I've been trying to track down a strange packet loss issue when a customer of mine is downloading files from S3 in the east region. We peer with AWS via MICE and traffic to east routes via MICE.

 

Could any of you folks peered with AWS via MICE try downloading this file a bunch of times and reports the results?

 

 

Basically, we see fast transfers maybe 80% of the time and then it will be slow, like sub 1Mb slow (we can replicate the issue with iperf to an EC2 instance also). Captures show lots of retransmits, etc during a slow transfer. If I shut down my AWS peering the problem goes away. I was able to test from another client of mine connected to Arvig and I'm pretty sure I can replicate the issue from there. So, I'm not convinced it's just me. On the other hand, if there is a problem, I'm surprised no one else has noticed!

 

Thanks!

Danny Meister 

Infrastructure Engineer

612.466.2071  |  DMeister@atomicdata.com

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