Can Polling Algorithm Balance the Number of Requests on All Service Nodes?

The polling algorithm of packet forwarding load balancing is aimed at connections. The same TCP connection will not be loaded on two backend servers simultaneously. If an uncertain number of requests are sent on the same connection, it may lead to different numbers of requests counted on the backend servers.

The polling algorithm of request proxy HTTP type load balancing can ensure the same number of requests counted on the backend servers in a scenario without session persistence enabled.