Bill,
The routing stability reports were not a measure of availability.
They were published in the IMR (Internet Monthly Report, for those
that don't remember) and it was clearly labelled. The section title
was "Routing Stability Measured on the T3 Network". The very first
paragraph was:
Internal routing stability measurements are made by monitoring
short term disconnect times (disconnects of five minutes duration or
less). This is intended as a measure of overall system stability
rather than complete connectivity.
This was started as a means to guage how well the routing software
worked, since IGP links should not go up and down a lot and IBGP
connections should never be lost unless the router dies or becomes
isolated. It served that purpose very well.
The only incident I know of where data was removed, a commercial T1
customer with only one connection had a very intermittent circuit and
wanted it kept up while Ameritec tried to figure it out. The problem
was in Ameritec equipment and took 2 weeks and escallation to VP level
before Ameritec solved the problem. The fact that data was removed
was noted in the IMR report.
Curtis