System Level Calculations for an Enterprise Network
The system level calculations for the network depicted in Figures 8-1 and 8-2 will be short because we have already calculated or assumed values for most of the devices. The two devices in this network for which we still need to perform calculations are the Cisco 3640 routers and the Cisco 1500 hubs. We begin with the 3640 calculations.
The Cisco 3600 Availability Calculations
The Cisco 3600 series router is a modular router for the purposes of network ports but is limited to a single processor and a single power supply in our configuration. Both the processor and the power supply are part of the chassis and motherboard assembly. It is possible to purchase an external, redundant power supply, ...
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