Minimizing the Impact of Control Plane Traffic on the CPU
In many cases, you can disable the reception and transmission of certain types of packets on an interface to minimize the amount of CPU load that is required to process unneeded packets. These types of packets fall into a category known as process switched traffic. This traffic must be handled by the CPU and hence results in a performance impact on the CPU of the network device.
Process switched traffic falls into two primary categories:
Receive adjacency traffic: This traffic contains an entry in the Cisco Express Forwarding (CEF) table whereby the next router hop is the device itself, ...
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