18.2 Basic Structure of Traffic Control in Linux
Figure 18-1 shows where traffic control is arranged in the Linux kernel. Traffic control in the incoming direction is handled by the functions from the file net/sch/sch_ingress.c before incoming packets are passed to higher protocol layers or forwarded over other network cards within the kernel.
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The largest part of traffic control in Linux occurs in outgoing direction. Here, we can use and interlink different elements for policing and traffic shaping. |