Steve,

Thank you very much for making this tool. It's very encouraging from our
(ie. the Atlas team's) point of view to see people making useful tools
based on the network.

I encourage you to continue your work, perhaps even collaborate with
others in an open source fashion to scale up, and also let us -- the
Atlas team -- know if we can be of assistance.

Regards,
Robert



On 2018-07-16 14:15, Steve Gibbard wrote:
> I wrote front-end to traceroute from the RIPE Atlas probes.  It looks like a 
> standard looking glass — you select a probe by location and AS number, enter 
> a destination, and it does a traceroute.  It’s on the web at 
> https://www.globaltraceroute.com.  If this looks useful, please check it out 
> and tell me what you think.
> 
> One of the things I've found frustrating when troubleshooting routing 
> problems was the lack of information about inbound paths.  Various 
> measurement systems would tell me when performance was bad.  Traceroutes from 
> my own network would tell me what path traffic to a destination was taking 
> outbound.  Flow systems would tell me what interface inbound traffic was 
> coming in on, and sometimes what peer it was coming through.  But determining 
> the full path inbound traffic was taking — why users of some ISP in Asia were 
> having their traffic show up at one of my POPs in Europe, for instance, was 
> much more difficult.
> 
> I’ve been using looking glasses and commercial performance monitoring systems 
> that allow traceroutes from their probes, but those often weren’t where the 
> end users were.  RIPE Atlas did have probes where a lot of my end users were, 
> so I started configuring one time measurements on RIPE Atlas whenever I 
> needed a traceroute from a simulated end user.  But finding a suitable probe 
> and configuring the measurement was too cumbersome to do when I wasn’t pretty 
> desperate.  This is my attempt to solve that problem.
> 
> Thanks,
> Steve
> 

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