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What is the significance of the PortMaster 4s System Management Module?

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What is the significance of the PortMaster 4s System Management Module?

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A. The PortMaster 4’s System Management Module (SMM), which maintains control functions and manages all chassis modules, contributes to the high levels of performance delivered by the PortMaster 4. Its embedded, high-speed switching fabric is directly linked to a virtual backplane on the unit’s chassis, independent from the physical backplane. This provides dedicated, high capacity 155 Mbps service to each module and enables a cost-effective migration path for future enhancements. The SMM also provides two physical network interfaces and maintains statistics on temperature, power consumption, number of modules installed, module type, serial numbers and configuration data. A second, redundant SMM can be installed, on stand-by for a hot crossover without any loss of routing information.

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