nanog mailing list archives
Re: And we thought the text part of the Starr Report would be bad
From: miquels () cistron nl (Miquel van Smoorenburg)
Date: 19 Sep 1998 22:39:15 +0200
In article <199809182139.RAA10174 () us net>, David Stoddard <dgs () us net> wrote:
There is more to this than meets the eye -- 28.8K is asynchronous and has start and stop bits for every byte, so there are a maximum of 2880 bytes/sec available over 28.8K. Then there is the issue
Almost every modem supports V42 error correction, which makes the modems speak a sort of synchronous with each other (actually data is transmitted in blocks with a start-of-block and end-of-block marker, and a checksum). That gets you 8 bits in a bith minus some negligeble V42 overhead. So an 28k8 modem can actually transfer almost 3.6 Kbytes/sec. Because of the block-oriented approach you do get a bit higher latency on interactive connections, which is why gamers often turn of V42. Somehow, nobody seems to know this. Mike. -- "Did I ever tell you about the illusion of free will?" -- Sheriff Lucas Buck, ultimate BOFH.
Current thread:
- And we thought the text part of the Starr Report would be bad Christian Nielsen (Sep 18)
- Re: And we thought the text part of the Starr Report would be bad Chris Cappuccio (Sep 18)
- Re: And we thought the text part of the Starr Report would be bad Richard Irving (Sep 18)
- <Possible follow-ups>
- Re: And we thought the text part of the Starr Report would be bad Jerry Scharf (Sep 18)
- Re: And we thought the text part of the Starr Report would be bad Paul Zawada (Sep 18)
- Re: And we thought the text part of the Starr Report would be bad David Stoddard (Sep 18)
- Re: And we thought the text part of the Starr Report would be bad Miquel van Smoorenburg (Sep 21)
- Re: And we thought the text part of the Starr Report would be bad David Stoddard (Sep 22)
- Re: And we thought the text part of the Starr Report would be bad John Leong (Sep 22)
- Re: And we thought the text part of the Starr Report would be bad Robert Szarka (Sep 22)
- Message not available
- Re: And we thought the text part of the Starr Report would be bad Jay R. Ashworth (Sep 23)
- Re: And we thought the text part of the Starr Report would be bad Paul Zawada (Sep 18)