I think I know a couple of these...
Moe:
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Oh, just one more question: why is the TTL of the query so small? Would a larger TTL clog the network?
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Yes. It's just like the requery function. If a few thousand users really
were sending 5 or 6 requeries every 300 seconds, and queries were allowed to hop to 15 hosts, there would be a ton of congestion.
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What does Limewire do to determine if someone is a four-star rating? Do you Ping them somehow as Morgwen suggested? If so, Morgwen said that that's not always reliable. Couldn't they be a four-star rating one second and a one-star the next depending on their activity?
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I'm not sure about that, but it could very well be that a four-star host suddenly filled his upload slots or signed off before you got a chance to connect to him. Napster's ping results were always very reliable for me; however, I think a DOS
ping command doesn't follow the same route to the pinged host as your file transfer will, so it won't be an accurate estimate of speed.
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(By the way, how do I refer to someone I'm uploading or downloading with? Are they a "host" or...?)
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Sounds good to me.
mdouma46:
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I was wondering about Ethernet connections. Namely, 10Mbps vs. 100Mbps and Half-Duplex vs. Full Duplex. Are these two things independant from each other? What I mean is can you have four different combinations like 10Mbps Half Duplex, 10Mbps Full Duplex, 100Mbps Half Duplex, and 100Mbps Full Duplex?
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10 Mbps and 100 Mbps are bandwidths, just like a 56 kbps modem (except a few thousand times faster). It means 10 million bits per second, or 1.25 million bytes per second (8 bits in a byte). Your nicer university networks run 100 Mbps, and home networks are usually 10 Mbps. You can say "ten mega baud" if you don't like "ten million bits per second."
You have an maximum upload speed and a separate maximum download speed. According to this
speed test, I can run 350 kB/s on uploads and about 1.5 MB/s on downloads. If your network card is capable of full-duplex, you can upload and download something to and from a host simultaneously. In half-duplex mode, you can be sending or receiving, but not both. I was under the impression that under full-duplex, you were guaranteed both your maximum upload and download speeds at any given time, whereas in half-duplex, a heavy download could deplete some of your upload bandwidth. I may be misinformed.
Hoping there's at least one truthful sentence in this post,
Brandan L.