IEEE 802 Standards Ethernet networking - Ethernet standards

Introduction to I Triple E 802 Standards

In this section, the instructor introduces the I Triple E 802 standards and explains their importance in the networking industry.

What are I Triple E 802 Standards?

• The Institute of Electrical and Electronics Engineers (I Triple E) has set standards for the networking industry.

• These standards are known as I Triple E 802 standards.

• They consist of various sub-numbered standards such as aro 2.3, aro 2.28 or 2.1, and so on.

• These standards define certain buzzwords that are commonly used in the industry.

Understanding Arrow 2.3 Standard

• Arrow 2.3 is one of the most common I Triple E 802 standards used in the networking industry.

• It defines medium access internet protocols.

• Other common protocols include token bus and wave land 802.11.

Divisions within Arrow 2 Standard

• Arrow 2 standard divides into two sub-layers: Logical Link Control (LLC) layer and Medium Access Control (MAC) layer.

• LLC provides a service interface that is same for all I Triple E there are two protocols.

• MAC defines methods used to access media being used.

Understanding Ethernet and Physical Layer

This section covers Ethernet, its physical layer, transmission-related properties, media types, topologies, and other related concepts.

Ethernet Basics

• The most widely-used standard under I Triple E is Ethernet which falls under arrow 2.3 standard.

• Physical layer of this standard defines transmission-related properties such as media types and topologies.

Media Types

• Different media types used in Ethernet include 10base2, 10base5, 10baseT, and 10baseF.

• The name of the media type implies the type of cable used, maximum length of data signals, number of stations that can be connected to it, and topology.

Topologies

• Different topologies used in Ethernet include star topology for 10baseT networks and bus topology for 10base2 networks.

• Star topology is a bunch of computers connected together using a hub or switch while bus topology is a straight line connection between computers.

Comparing I Triple E Arrow 2 Layers with OSI Model

This section compares I Triple E arrow 2 layers with the OSI model.

Comparison

• Data link layer in OSI model is divided into two sub-layers: Logical Link Control (LLC) layer and Media Access Control (MAC) layer which are similar to I Triple E arrow 2 layers.

• LLC provides a service interface that is same for all I Triple E there are two protocols while MAC defines methods used to access media being used.

Summary of OSI Layers

In this section, the instructor summarizes the OSI layers and their functions.

OSI Layers

• The OSI model consists of seven layers.

• The first layer is the application layer, which deals with user interfaces and data exchange.

• The second layer is the presentation layer, which handles data formatting and encryption.

• The third layer is the session layer, which manages communication sessions between applications.

• The fourth layer is the transport layer, which provides reliable data transfer between hosts.

• The fifth layer is the network layer, which handles routing and addressing of data packets.

• The sixth layer is the data link layer, which manages access to shared media and error detection/correction.

• Finally, the seventh layer is the physical layer, which deals with physical transmission of data over a medium.

The better understanding of these layers makes it easier to understand how networks function.