Transmission network system, data switching and transmission method, apparatus and equipment

A transmission network system, comprising:

• an Ethernet transmission subsystem and an optical network transmission subsystem, wherein the Ethernet transmission subsystem and the optical network transmission subsystem are connected via a unified cross switching matrix;
• the Ethernet transmission subsystem comprises:
• a flexible Ethernet group located at a physical layer;
• at least one flexible Ethernet client carried over the flexible Ethernet group;
• a flexible Ethernet time slot control module, configured to map, according to a block sequence, service data from an upper layer onto the flexible Ethernet group;
• and recover, from the block sequence received by the flexible Ethernet group, corresponding service data;
• a flexible Ethernet switching module, configured to perform switching in a physical layer and transmission of the service data according to the block sequence;
• the optical network transmission subsystem comprises:
• at least one optical network unit;
• a flexible Ethernet group;
• at least one flexible Ethernet client carried over the flexible Ethernet group;
• a flexible Ethernet time slot control module, configured to map service data from an upper layer into the at least one optical network unit via the flexible Ethernet group;
• and
• recover, from data received by the at least one optical network unit, corresponding service data;
• an optical network switching module, configured to perform a switching and transmission of service data according to a block sequence whose size is a preset times of the block sequence divided by the optical network unit;
• wherein the optical network switching module and the flexible Ethernet switching module are separately connected to the unified cross switching matrix.