wsimpson> When we first designed PPP in the late '80s to replace SLIP wsimpson> and SLFP, it was expected to run at 300 bps and scale up, so wsimpson> the timeouts reflected that. When I designed PPP over ISDN, wsimpson> added language to allow faster retransmission. SLIP and PPP were quite... robust. Some UCB folks managed to get SLIP over tin can and string. Two acoustic coupler 150b modems, 2 8oz V8 cans and waxed cotton thread. wsimpson> Like many of you, I started an ISP in 1994 with a 56 kbps wsimpson> uplink, and only 6 local customers.... The routers were in a wsimpson> bathroom over the garage. Our first CA hub was in the janitor's closet at a now defunct computer company. We initially had problems with the janitors unplugging the router on weekends to plug in their floor buffers. Ah, the good old days.