On Tue, Mar 13, 2007 at 12:34:12PM -0400, Valdis.Kletnieks@vt.edu wrote:
On Tue, 13 Mar 2007 15:45:07 -0000, "Chris L. Morrow" said:
If there were then I bet $TELCO || $CABLECO would drop prices and speed up links... since there isn't I think we're all lucky we're not still using a 110baud coupler modem :)
OK, what drove the improvement from the 110 baud backwater to today's US backwater? And what evidence is there that the same driver won't continue to push?
The reason that we were able to get from 110b aud to V.92 without active cooperation from $TELCO was because $TELCO didn't have to do anything to make it happen. The extant copper pair was (mostly) good enough for technology to advance "at the ends" for quite a while. Similarly, since this was all done over the voice network, $TELCO didn't have to actively cooperate in moving the data along, beyond what they'd do for any other phone call. DSL[1] and DOCSIS require active cooperation from the carrier. Ergo, tech advancement in the carrier-assisted data transport arena is dependent on the carrier cooperating. .....Matthew [1] except for "alarm circuits" that somehow got repurposed for point-to-point DSL circuits (or T1s, for that matter), in which case you're back to tech advancement happening in the CPE, not the medium. -------------- Matthew F. Ringel Sr. Network Engineer Tufts University