Our customers typically also have demand for high bandwidth as well as uptime, so capacity is carefully engineered with low thresholds set to trigger upgrades. On our DSL platforms routers are kept at no more than 30% usage during peak hours, with average across the network typically 15-20%. This ensures that traffic re-routed during a failure can be absorbed at other sites with ease.
In preparation for the Olympics we are operating with peak backbone usage typically between 5 & 10% and have plumbed in an additional 40 Gb/s of Internet transit routing capacity – enough to comfortably serve huge customer demands whilst being able to also cushion large DoS attacks.
