nanog mailing list archives
Headscratcher of the week
From: Mike <mike-nanog () tiedyenetworks com>
Date: Fri, 31 May 2013 15:25:22 -0700
Gang,In the interest of sharing 'the weird stuff' which makes the job of being an operator ... uh, fun? is that the right word?..., I would like to present the following two smokeping latency/packetloss plots, which are by far the weirdest I have ever seen.
These plots are from our smokeping host out to a customer location. The customer is connected via DSL and they run PPPoE over it to connect with our access concentrator. There is about 5 physical insfastructure hops between the host and customer; The switch, the BRAS, the Switch again, and then directly to the DSLAM and then customer on the end.
The 10 day plot: http://picpaste.com/10_Day_graph-YV3IdvRV.png The 30 hour plot: http://picpaste.com/30_hour_graph-DrwzfhYJ.pngHow can you possibly have consistent increase in latency like that? I'd love to hear theories (or offers of beer, your choice!).
Happy friday all! Mike-
Current thread:
- Headscratcher of the week Mike (May 31)
- Re: Headscratcher of the week Jonathan Lassoff (May 31)
- Re: Headscratcher of the week Jeff Kell (May 31)