I remember that outage. It was finally blamed (as described in this brief) on phone switch manufacturer DSC. IIRC this killed the company. Their SLA with their customers was something like three minutes of downtime per decade.
DSC was our customer at Cygnus. They were interesting as a customer (tough requirements but they paid a lot for them). For example if they reported a bug and got a fix they diffed the binaries and looked at every difference to be sure that the change was a result of the fix, and nothing else (no, they didn’t want upgrades).
DSC was our customer at Cygnus. They were interesting as a customer (tough requirements but they paid a lot for them). For example if they reported a bug and got a fix they diffed the binaries and looked at every difference to be sure that the change was a result of the fix, and nothing else (no, they didn’t want upgrades).