Re: Qrator Radar - Peerings

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

I haven't brought it up with them, no. I didn't think it was a mass issue until last night. I wanted to check with 
other users before I went to them. Maybe I should have done the opposite. 




----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP 

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

From: "Yang Yu" <yang.yu.list () gmail com> 
To: "Mike Hammett" <nanog () ics-il net> 
Cc: "NANOG list" <nanog () nanog org> 
Sent: Wednesday, December 6, 2017 1:11:48 AM 
Subject: Re: Qrator Radar - Peerings 

Have you received a response from qrator? My guess is that they 
dropped a BGP collector session that was advertising garbage 
(modifying AS path to make non-connected ASNs appear connected). 


> most ASNs left permanently on at 2017-03-11 21:00:00 were never connected 
https://radar.qrator.net/as11537/peerings#startDate=2017-03-06&endDate=2017-03-15&tab=left 


Yang 

On Tue, Dec 5, 2017 at 6:06 PM, Mike Hammett <nanog () ics-il net> wrote: 
> Does anyone use this site much? Has something happened to reduce their visibility? 
>
> I've noticed multiple networks that had massive drops in peerings on or around March 11, 2017. AS5650 went from 66 to 
> 12. AS53828 went from 436 to 19. PCH's AS3856 looking glass still reports adjacencies to both of those ASes. AS3856 
> went from 183 adjacencies to 113 that same day (and didn't bounce back). It seems rather unlikely that PCH would lose 
> that much, given that their goal is to collect route table information. Even more odd that those two ASNs would also 
> lose a ton of peers the same day. 
>
> Thoughts? 
>
>
>
>
> ----- 
> Mike Hammett 
> Intelligent Computing Solutions 
>
> Midwest Internet Exchange 
>
> The Brothers WISP