FPGA study notes _ FPGA implementation of Gigabit Ethernet _OSI's 7-layer model

FPGA study notes

1. FPGA implements the 7-layer model of Gigabit Ethernet_OSI

Knowledge points of Gigabit Ethernet:

The 7-layer model of OSI (open system interconnect):

1) Physical layer : Responsible for encoding the final award information into current pulses or other signals for online transmission, wifi, network cable, 5g; eg. RJ45 (just a physical interface, the setting does not include any level conversion protocol), etc. to convert the data It is 0,1.
2) Data link layer (MAC) : Provides data transmission through physical network links. Different data link layers define different network and protocol features, including physical addressing, network topology, error checking, data frame sequence and flow control; the sub-packet form of 0, 1 is specified, and the network data is determined The form of the package.
3) Network layer : establish a connection between source and destination; determine the location of the computer, IPV4, IPV6.
4) Transport layer : Provide reliable end-to-end network data stream services to the upper layers ; each application will register a port number in the network card, port-to-port communication, and commonly used (TCP/IP) protocols.
5) Session layer : establish, manage, and terminate the communication drawing between the presentation layer and the entity. eg. Establish a connection, automatic mobile phone information, automatic network addressing.
6) Presentation layer : Provides a variety of functions for data encoding and conversion at the application layer to ensure that the information sent by the application layer of one system can be recognized by another application layer; to solve the communication under different systems: qq of linux and qq of windows Communication between.
7) Application layer : Application layer protocols include file transfer, access and management protocol (FTAM), file virtual terminal protocol (VIP), public management system information (CMIP), etc.; specify the data transfer protocol.

[Note]: Personal study notes, if there are any mistakes, please feel free to enlighten me. This is polite~~~