Average Ping Value

I know that the ideal value when pinging a site should be as close to 0 ms as possible.
However, what is a good value both on the LAN and connecting to sites on the internet?
What is the warning sign that the connection has problems - 100ms 1000ms?

Thanks

Mark
markg1Asked:
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slartibartfarstCommented:
It depends on the size and complexity of the LAN but usually a ping time of around 10ms or less is normal for a small LAN.  As for the internet, it depends on the server you are connecting to and it's geographical location, but a good internet ping time is 100ms or less.  For halfway round the globe, maybe 300ms.  These times greatly increase if you are on 56K dial-up though. (300-1000ms)
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antonsigurCommented:
As slartibartfarst just said, it depends...
At work we have very fast LAN, with newest technology and fiber conections etc.. What ever computer you ping from what ever computer in there, you "always" get <10ms. But when you are pinging over the internet, you will never know where your ip-packages travel, so the echo reply will probably be slower than this. 100ms or less is good.
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lrmooreCommented:
It all depends on the ISP and the connection. Some ISP's will guarantee a response time < 75ms end-to-end, some guarantees are meaningless because they only guarantee the latency "within their network", not end-end

Consistency is probably a more important sign of trouble. If you get pings that fluctuate between 50ms one ping, next ping 287ms, next ping 398ms, next ping 72ms. This could be a sign of upstream issues that you probably can't control, but could be trouble to any applications that are delay sensitive.
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markg1Author Commented:
What about tracert?
Does the no more than 100ms per hop hold true?
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antonsigurCommented:
I would say yes, each hob should not be more than 100ms from one....
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lrmooreCommented:
IHMO, not necessarily. Traceroute works differently than ping. Not all routers in the path will respond to the icmp packets so the timeout values are included in the response times.
Remember also that ICMP traffic is lowest priority through most of the routers in the link, so poor ping times may not translate into poor application performance.
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geoffrynCommented:
I agree with Lmoore.  Latency is not necessarily the most important factor.  Jitter, varience in the latency, can have a greater impact on most applications than pure latency.
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