| Now, while the Ultrapeer model and QRP partly solve the problem that you don't have the time to explain something properly to someone else, or to get it explained, because the phone rings endlessly for questions to which you know no answer (or in Tech-Speech: because the network-traffic exceeds your connection-speed), there is still another problem which might normally not even be visible, if you look at it. In the Real World, an Ultrapeer will ask for a specialist who can give you the info until he/she finds one, and then stops. In the Computer-World, the question is sent on and on, to as many contacts as possible, without looking if there already are answers.
With dynamic Querying that changes. Now the Ultrapeers ask one other Ultrapeer at a time, and wait a bit, to see if they get answers. When they have enough answers to be satisfied, they stop asking for more. It sounds pretty natural, but was quite a big step for Gnutella because it saves resources which were wasted on very popular questions. I'll take the example of the of the head of university again: now, if you ask for the head of university, your Ultrapeers will first see if they know someone directly who can answer your question. Then they will simply give you some numbers of people they know who live on the campus. You will still get more than one answer because they will give you more than one number, as they can't be sure that you'll reach every number they gave you. But you won't get thousands of phone-numbers (one from every student on the campus), first because the Ultrapeers would waste their time with that on something which doesn't give you additional benefit, second, because you couldn't ever call all those people, and third, because then you might not reach your Ultrapeers anymore, because they would be so busy getting return calls from others who tell them numbers, and sending your question to other Ultrapeers.
To learn more about about Gnutella visit http://gnufu.net - Gnutella For Users
This FAQ was contributed from http://gnufu.net - Gnutella For Users
|
About Phex 
or Amazon.de
