Bandwidth management is implemented in hardware and thus ensuring SR8800 can meet most demanding performance requirements. Highly Reliable System SR8800 has fully duplicated CPUs, cross-point switches and power units. All duplicated equipment are hot-swappable. When failure is detected, standby processor is able to take over as active processor in less than 3 seconds. Standby processor monitors routing information and constantly creates a mirror copy routing table as in active processor.
Standby processor is therefore ready to go into active state at all time.
In addition to the duplex system configuration, two SR8800s can operate as hot standby nodes in the network. The two SR8800 conducts health check of each other every 1 second. When one SR8800 fails, traffic can be diverted to the other SR8800 as fast as 6 seconds. Each traffic flow can then be associated with different bandwidth control queue. Best Effort Switching Traffic classified in high priority or low priority queue will be delivered according to bandwidth availability.