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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: MCI [ATM overhead]
> From: [email protected] (Tim Salo) > > From: Wolfgang Henke <[email protected]> > > SONET (Synchronous Optical Network) speeds given in Mbps > > > > nominal w/o Sonet ATM TCP/IP > > overhead > > > > OC-3 STS-3c 155.520 149 122 137 future net backbone > > [...] > > I think your 122 Mbps "ATM" number could be a bit confusing, even knowing > the assumptions you described in earlier mail. (Also, more bandwidth seems > to be available to "TCP/IP" than appears to be available from ATM...) > I believe that the number is for TCP/IP carrying capacity _without_ ATM. > One could remove the ATM overhead, but then one has a point-to-point > link, rather than a link over which data from many sources can be > multiplexed. > Rather, that leaves us with the excellent (very desirable) option of a link where data from many sources are multiplexed by TCP/IP.... I do not see what ATM buys in this situation. [email protected] Key fingerprint = 17 40 5E 67 15 6F 31 26 DD 0D B9 9B 6A 15 2C 32 [email protected] Key fingerprint = 2E 07 23 03 C5 62 70 D3 59 B1 4F 5E 1D C2 C1 A2
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