Network scheduler
（重定向自Packet scheduler）
![Packets queuing in a FIFO (first in, first out) data structure.](/Images/godic/202502/01/Data_Queue.svg3740.png")
![The Linux kernel packet scheduler is somewhere in the network stack together with netfilter, nftables and the Berkeley Packet Filter.](/Images/godic/202502/01/Simplified_Structure_of_the_Linux_Kernel.svg3740.png")
A network scheduler, also called packet scheduler, is an arbiter program on a node in packet switching communication network. It manages the sequence of network packets in the transmit and receive queues of the network interface controller, which is a circular data buffer. There are several network schedulers available for the different operating system kernels, that implement many of the existing network scheduling algorithms.