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Non-Tech : Quote.com QCharts
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To: jtsaratoga who wrote (3651)9/6/1999 3:59:00 PM
From: Gibbons Burke  Read Replies (2) of 17977
 
We're probably not going to provide direct access to server choice in QCharts. The application doesn't really handle this - managing the connection is the job of the ContinuumClient.DLL so QCharts itself can only tell it to switch to the next best one. This is what the Ctrl-Alt-N key does.

The ContinuumClient does continue to monitor the connections and it pings all the available routers a couple of times per minute to monitor conditions. But the philosophy is rather rigid - it's a cardinal rule that a connection shouldn't be broken except in dire situations because switching servers can be expensive and rather disruptive to trading. It will suggest a switch to a new server when the next best server is twice as fast as the current connection and the slowdown is not an apparent slowdown caused by, say, you downloading a file and clogging up your connection bandwidth.

The one condition where ContinuumClient.ini might not detect that a particular router was bad is in a situation where there is packet loss along the route to a particular server. We don't ping frequently enough to pick this up and so if a particular route had data loss conditions it might show up as the "best" in terms of travel time, but in reality the quality of the connection is poor because stuff is being dropped.

You can determine if this is the case using Ping Plotter (http://www.nessoft.com/) - the PL% column in the route graph will show if there is any packet loss and exactly where it is happening. Let us know when those conditions arise and if you can provide us the snapshot from ping plotter we can track down exactly where the problem is and call the network operators people repsonsible for the defective router.

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Gibbons
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