Summary
I have dealt in this chapter with namespaces in Linux, focusing on network namespaces. I also described the cgroups subsystem and its implementation; furthermore, I described its two network modules, net_prio and cls_cgroup. The Linux Bluetooth subsystem and its implementation, the IEEE 802.15.4 Linux subsystem and 6LoWPAN, and the NFC subsystem were all covered. The optimization achieved by Low Latency Sockets Poll was also discussed in this chapter, along with the Notification Chains mechanism, which is widely used in the kernel networking stack (and you will encounter it when browsing the source code). Another topic that was briefly discussed was the PCI subsystem, in order to give some background about PCI devices, as many network ...
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