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I worked as an electronic tech back repairing 4/5ESS switches. Those things were built like tanks.
by twodayrice 5y ago
I worked as an electronic tech back repairing 4/5ESS switches. Those things were built like tanks.
- dave333 5y agoI worked on the systems used to implement various switches such as #4ESS and #5ESS and the goal was less than 2 hours downtime in 40 years which means you can't even reboot and have to upgrade software method by method on the fly. Needless to say 40 years later the average smartphone is about 1000x more powerful than those switches.
- jbledsoe2112 5y agoOh nice! Did you ever work on crossbar switches?