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#1593 - 02/28/06 01:18 AM Finding troubled hop
savage Offline


Registered: 02/28/06
Posts: 1
Can someone point me in the right direction to which provider I am haveing a bad hop issue with??






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#1594 - 02/28/06 01:32 AM Re: Finding troubled hop [Re: savage]
Pete Ness Offline



Registered: 08/30/99
Posts: 1106
Loc: Boise, Idaho
There's not really enough data here to do much troubleshooting. 4 samples isn't enough to know much of anything about network conditions.

Now I suspect the question you're really asking about is about hop 2 and hop 11 - and who you should be asking to solve the packet loss you're seeing there. Unless you're seeing a problem at the final destination, then there may be no problem at all with those hops.

We talk about this in a couple of our knowledge base articles:

http://www.nessoft.com/kb/24
and
http://www.nessoft.com/kb/2

We also talk about this concept in our Voice over IP troubleshooting guide:

http://www.pingplotter.com/manual/pro/voiptroubleshooting.html

and more in our getting started guide:

http://www.pingplotter.com/gsg

The first image in our VoIP troubleshooting guide is a good example of a great connection that shows some packet loss at an intermediate hop. There is no cause for concern unless the final destination is seeing problems.

Your little bit of data looks like the final destination probably *is* having problems. You didn't really include enough data to analyze it, though. Try collecting at least 250 (or more) samples over the course of an hour or more - that will start to give statistically relevant information.

You're looking for packet loss or latency problems at the final destination. When you see that, look at the first hop where you see the same patterns. The likely source of problems is that hop, or the link between the prior hop and that one.

- Pete

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