In the final section of this chapter, we will be discussing some reasons for switch performance degradation. Additionally, we will also discuss solutions that can be implemented to safeguard or mitigate against these contributing factors. One of the most telling signs of performance issues is high CPU utilization. However, a common misconception is that high CPU utilization indicates the depletion of resources on a device and the threat of a crash. While this may be true for software-based routers, a capacity issue is almost never a symptom of high CPU utilization with hardware-based forwarding switches like the Catalyst . . .
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