Explanation/Reference:
Explanation:
* Strict Priority
With strict priority queuing, the switch services the queues in order of their priority. The highest priority queue is serviced until it is empty, and then the lower priority queues are serviced sequentially until they are empty.
* Weighted Round Robin
Weighted round robin (WRR) is a network scheduling discipline. Each packet flow or connection has its own packet queue in a network interface card. It is the simplest approximation of generalized processor sharing (GPS). While GPS serves infinitesimal amounts of data from each nonempty queue, WRR serves a number of packets for each nonempty queue: number = normalized( weight / mean packet size ).
3 Weighted Fair queueing
Weighted fair queueing (WFQ) is a data packet scheduling used by network schedulers. WFQ is both a packet based implementation of the generalized processor sharing policy (GPS), and a natural generalization of fair queuing (FQ): whereas FQ shares the links capacity in equal subparts, WFQ allows to specify, for each flow, which fraction of the capacity will be given.
Reference: https://en.wikipedia.org/wiki/Weighted_round_robin
https://en.wikipedia.org/wiki/Weighted_fair_queueing