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Article #46845Re: timings - real world thruput
From: Karl Denninger
Date: Wed, 05 Jul 1995 00:00
Date: Wed, 05 Jul 1995 00:00
33 lines
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1683 bytes
In article <3tee4g$4e0@news1.mcs.net>, Phil N. Schuman <pschuman@interserv.com> wrote: >> karl@MCS.COM (Karl Denninger) writes: > >> 25kbps >28.8 modem >> 50kbps >ISDN TA - single B channel - V.120 rate adaption >> 55kbps >ISDN TA - single B channel - async/sync PPP connection >> 63kbps >ISDN ethernet router - single B channel >> 126kbp >ISDN ethernet router - both B channels > >Karl - > >what do these data rates reflect - > >ie - does the 25,000 bps ==> 25k/8 bits ==> 3,125 chars per second. For async these rates are BYTES, as you have stop and start bits. Thus, the TAs and modems are divided by *ten*, not eight. For Ethernet routers they are divided by *eight*. >ie - 31,250 chars would transmit in 10 seconds using the 28.8 modem (25kbps) ?? >and it would take 5 seconds using the ISDN TA with V.120 (50kbps), etc... See above. -- -- Karl Denninger (karl@MCS.Net)| MCSNet - The Finest Internet Connectivity Modem: [+1 312 248-0900] | (shell, PPP, SLIP, leased) in Chicagoland Voice: [+1 312 248-8649] | 7 Chicagoland POPs, ISDN, 28.8, much more Fax: [+1 312 248-9865] | Email to "info@mcs.net" WWW: http://www.mcs.net ISDN - Get it here TODAY! | Home of Chicago's only FULL AP Clarinet feed!
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10d5fa,32e71bd291fee183 X-Google-Attributes: gid10d5fa,public From: karl@MCS.COM (Karl Denninger) Subject: Re: timings - real world thruput Date: 1995/07/05 Message-ID: <3tegnf$7q9@Venus.mcs.com> X-Deja-AN: 105766279 references: <3te83b$o7q@Venus.mcs.com> <3tee4g$4e0@news1.mcs.net> organization: MCSNet Ops, Chicago, IL newsgroups: chi.internet