Why do we use the Linux kernel's (network) protocol stack?

1, the kernel protocol stack can serve multiple network applications, and the user-State protocol stack will not work. DPDK, for example, will unbind the NIC from the kernel and then monopolize it.

2, the kernel protocol stack provides a wealth of protocol support/debugging means, stability is also time-tested. The counter-View user-state protocol stack is in its infancy, with limited support for network protocols,

Most of them are two development of adaptive application scenarios.

If it is a small device, use the kernel protocol stack for common requirements

For large devices/data centers where demand is fixed, use a user-configured protocol stack such as DPDK, which combines network virtualization technology to achieve the most appropriate performance.

Why do we use the Linux kernel's (network) protocol stack?