MCU (software is generally called server), does not encode and decode video images, but only forwards them. For example, if 10 people participate in a meeting and broadcast 3 images, then only 3 images will be uploaded, and then the 3 streams will be distributed to 10 people and each will distribute 3 images. Therefore, the basic requirements for server hardware performance are not high. The bandwidth of the software client server fluctuates greatly, depending on how many images are broadcast, which is basically a multiplication method, the traffic of a single image * the number of channels broadcast * the number of participants.