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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: High speed access
Once upon a time, Andrew Brown <[email protected]> said: > symetric 11 Mbps sounds...goofy. especially if based on 802.11b, > which utilizes a broadcast mechanism. besides, i've yet to meet > *anyone* who got past about 2/3 of the theoretical "bandwidth" of > 802.11b. imho, it's the spinal tap of the networking era (it "goes to > 11", but is actually just a rumor and sort of made up). 802.11b is 11Mbps (at the top end), but that includes signalling overhead. There is a lot of overhead involved in the protocol (think like ATM where you can't get 11Mbps of IP traffic through an 11Mbps ATM link). Also, 802.11b is "half-duplex"; only one side can be transmitting at a time (like plain old Ethernet with either 10Base2 or 10BaseT and a dumb hub). -- Chris Adams <[email protected]> Systems and Network Administrator - HiWAAY Internet Services I don't speak for anybody but myself - that's enough trouble.
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