Routing is the main function of which layer in the osi model

This article mainly introduces which level of osi model routing is the main function, the article introduces in great detail, has a certain reference value, interested friends must read it!

Routing is the main function of the network layer in the osi model. Osi model refers to the open system interconnection communication reference model, which is called "Open System Interconnection Reference Model" in English.

Routing is the main function of the network layer in the osi model.

Open Systems Interconnection Communication reference Model (Open System Interconnection Reference Model, abbreviated as OSI), referred to as OSI Model (OSI model), is a conceptual model proposed by the International Organization for Standardization (ISO), a standard framework that attempts to interconnect various computers into networks around the world. Defined in ISO/IEC 7498-1.

The OSI/RM protocol is developed by ISO (International Organization for Standardization). It has three basic functions: to provide developers with a necessary and common concept to develop a framework that can be used to explain the connection of different systems.

OSI divides the computer network architecture (architecture) into the following seven layers:

Physical layer: converting data into electronic signals that can be transmitted through a physical medium is equivalent to a porter in a post office.

Data link layer: determines how the network media is accessed.

In this layer, the data is framed and the flow control is handled. This layer specifies the topology and provides hardware addressing, which is equivalent to the packing and unpacking workers in the post office.

Network layer: the right to use data is routed through a large network equivalent to a sorting worker in a post office.

Transport layer: providing a reliable terminal-to-terminal connection is equivalent to a messenger who runs a post office in a company.

Conversation layer: allows users to establish a connection with an easy-to-remember name equivalent to the secretary in the company who receives and sends letters, writes envelopes, and opens envelopes.

Presentation layer: the negotiation data exchange format is equivalent to the presentation boss and the assistant who writes for the boss in the company.

Application layer: the interface between the user's application and the network.

These are all the contents of the article "routing is the main function of the osi model". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!