How to Diagnose Lag and Rubberbanding
View Single Post
Join Date: Dec 2007
07-26-2011, 04:40 PM
Originally Posted by
I posted this in the other thread, but I think this is the correct location to get feedback for the data.
What doe these numbers show?
It means something interesting is going on. Most likely a reverse traceroute done by Cryptic to your IP will point to the cause. What's interesting to me is between hops 11 and 12:
11 19 ms 17 ms 15 ms te0-0-0-0.ccr22.bos01.atlas.cogentco.com [22.214.171.124]
12 102ms 207ms 212ms te3-2.ccr01.bos06.atlas.cogentco.com [126.96.36.199]
There's a significant jump in latency from one boston hop to the other within the same ISP. What this does not tell you is if the problem is actually on the return path back to you (causing this bogus result). Cryptic will need to do a reverse traceroute and verify that it is that point which is causing the problem or if a return path is taking a different route back to you. (This, in networking terms, is called asymmetric routing. The path from A to Z is one way, but Z to A goes a completely different route. Only comparing the two will yield viable data.)
This coming from someone who is a dual specialty (and 10 years of ISP experience) of Network Engineering and Systems Administration.