[AusNOG] NSW-IX - Doody Street - Flap?

[Shane Goulden]

We had the same problem with CloudFlare last week, it was particularly difficult to troubleshoot.

I wasn't sure exactly who/what was at fault but from what you've described it sounds exactly the same as the problem we were having.

We've had our CloudFlare NSW-IX bilateral session routes filtered both ways since then to work around it.

Regards,
Shane

> On 1 Apr 2016, at 07:15, Benoit Page-Guitard <benoit at anchor.net.au> wrote:
> 
> Hi Glenn,
> 
>> On Fri Apr 01, 2016 at 02:33:14 +1100, Glenn Slaven wrote:
>> Not sure if this is related, but from around 9:20pm ADST we've been getting
>> connection timeouts between our Sydney AWS nodes and various origin servers
>> (we run http reverse proxies).  The issue isn't happening from other AWS
>> locations that we tried and is not happening for all origins.  This is
>> still happening.
> 
> We've been seeing the same thing from our end.
> 
> Return paths from AWS traversing NSW-IX appear to be randomly blackholed,
> with only certain src/dst address pairs seemingly affected.
> 
> Hard to tell if the issue is on the AWS side or on the NSW-IX platform.
> Possibly a dead link in a bundle or a bug in the programming of a
> forwarding plane along the way..
> 
> 
> Regards,
> 
> -- 
> Benoit Page-Guitard - Senior Operations Engineer
> 
> Anchor Systems Pty Ltd
> Level 11, 201 Elizabeth Street Sydney NSW 2000 Australia
> https://www.anchor.com.au/ - +61 282965111
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