Symmetrical mode: That is, the uplink and downlink rates are both 10G. The asymmetric mode can be considered as a transitional form of the symmetric mode. In the early stage where the upstream bandwidth demand is less and the cost is more sensitive, the asymmetric mode can be used. With the development of business and technological progress, it will gradually transition to asymmetrical model.

What is EPON network?

EPON (Ethernet Passive Optical Network) is a PON technology based on Ethernet. It adopts point-to-multipoint structure, passive optical fiber transmission, and provides a variety of services over Ethernet. EPON technology combines Ethernet and PON technology, adopts PON technology in the physical layer, uses Ethernet protocol in the data link layer, and uses the topology structure of PON to realize Ethernet access.