perfsonar development work

["Cottrell, Les" <>]

Interesting question. I know of no way. Maybe someone has published something 
on this. The only thing we looked at was looking at the traceroutes and then 
when a change occurred looking to see whether it the ASN differed, or more 
than the 4th octet varied, and whether it affected more than one hop.

-----Original Message-----
From: Li, Yee-Ting 
Sent: Friday, July 20, 2007 2:32 PM
To: Cottrell, Les
Subject: Fwd: [pS-dev] Question about interpreting One Way Delay data.

perhaps you can answer this...

Begin forwarded message:

> From: Joe Metzger 
> <>
> Date: 20 July 2007 14:22:52 GMT-07:00
> To: 
> 
> Cc: 
> 
> Subject: [pS-dev] Question about interpreting One Way Delay data.
>
> Hi,
> An interesting question came up in the course of debugging a 
> performance problem today.
> It is not real important from an operational perspective, but it is 
> intriguing from an academic point of view.
>
> Is there a way to analyze one way latency measurements between 
> endpoints over long slow congested paths and differentiate between 
> route-flapping and load balancing?
>
> If so, do you need access to raw data, or can you do it from the type 
> of summarization that the DFN and I2 tools are typically doing today?
>
> Thoughts?
>
> --Joe
>