The OSI model

Xem 1-20 trên 96 kết quả The OSI model
  • Learning objectives of this chapter include: Understand the architecture of the OSI model, understand the layers of the OSI model and their functions, understand the architecture of the TCP/IP Protocol Suite, differentiate between the OSI model and the TCP/IP Suite, differentiate between the three types of Internet addresses.

    ppt36p tangtuy09 26-04-2016 9 1   Download

  • Responsible for program to program communication • Provides services directly to applications, such as electronic mail, file transfer and terminal emulation • Responsible for identifying and establishing the availability of the intended partner and required resources • Responsible for determining if sufficient communication resources exist to reach the remote partner

    pdf7p batoan 07-08-2009 142 30   Download

  • This diagram illustrates the Physical layer (Layer 1) of the OSI model. The Physical layer is responsible for the ultimate transmission of data over network communications media. It operates with data in the form of bits that are sent from the Physical layer of the sending (source) device and received at the Physical layer of the destination device. Ethernet cabling, Token Ring network technology and SCSI all function at the Physical layer of the OSI model. Hubs and other repeaters are standard network devices that function at the Physical layer.

    pdf54p thanhtq00103 08-06-2011 74 14   Download

  • Chapter 2 introduce Networking standards and the OSI model. This chapter objectives: Identify organizations that set standards for networking, describe the purpose of the OSI model and each of its layers, explain specific functions belonging to each OSI model layer,...

    pdf13p kiepnaybinhyen_02 29-12-2015 2 1   Download

  • The two dominant networking models are the Open Systems Interconnection (OSI) and the Internet model (TCP/IP).The first is a theoretical framework; the second is the actual model used in today's data communications. In Chapter 2, we first discuss the OSI model to give a general background. We then concentrate on the Internet model, which is the foundation for the rest of the lecture.

    ppt42p tangtuy04 12-03-2016 2 1   Download

  • p 01-01-1970   Download

  • The Open Systems Interconnection (OSI) model is a reference tool for understanding data communications between any two networked systems. It divides the communications processes into seven layers. Each layer both performs specific functions to support the layers above it and offers services to the layers below it. The three lowest layers focus on passing traffic through the network to an end system. The top four layers come into play in the end system to complete the process.

    pdf11p huyhoang 06-08-2009 137 52   Download

  • This lab will help to develop a better understanding of the seven layers of the OSI model. Specifically as they relate to the most popular functioning networking model in existence, the TCP/IP model. The Internet is based on TCP/IP. TCP/IP has become the standard language of networking. However, the seven layers of the OSI model are the ones most commonly used to describe and compare networking software and hardware from various vendors. It is very important to know both models and be able to relate or map the layers of one to the other.

    pdf1p thanhha 27-08-2009 136 25   Download

  • Networking Standards and the  OSI Model Identify organizations that set standards for networking. Describe the purpose of the OSI Model and each of its layers Explain specific functions belonging to each OSI Model layer Understand how two network nodes communicate through the OSI model Discuss the structure and purpose of data packets and frames. Describe the two types of addressing covered by the OSI Model.

    ppt43p itvovantien 13-07-2012 43 12   Download

  • Network Protocols Identify the characteristics of TCP/IP, IPX/SPX, NetBIOS, and AppleTalk Understand how network protocols correlate to layers of the OSI Model Identify the core protocols of the TCP/IP suite and describe their functions Identify the well-known ports for key TCP/IP services Understand addressing schemes for TCP/IP, IPX/SPX, NetBEUI, and AppleTalk Describe the purpose and implementation of DNS (Domain Name System) and WINS (Windows Internet Naming Service) Install protocols on Windows XP clients...

    ppt51p itvovantien 13-07-2012 48 10   Download

  • Networking Hardware Identify the functions of LAN connectivity hardware Install and configure a NIC (Network Interface Card) Identify problems associated with connectivity hardware Describe the factors involved in choosing a NIC, hub, switch, or router Discuss the functions of repeaters, hubs, bridges, switches, routers, and gateways, and the OSI Model layers at which they operate Describe the use and types of routing protocols

    ppt48p itvovantien 13-07-2012 55 10   Download

  • Data can be corrupted during transmission. For reliable communication, error must be detected and corrected are implemented either at the data link layer or the transport layer of the OSI model.Error detection uses the concept of redundancy, which means adding extra bits for detecting errors at the destination

    ppt39p hoangchung_dtvt 10-12-2012 28 3   Download

  • Chapter 3 Application Layer Functionality and Protocols .Overview Describe how the functions of the three upper OSI model layers provide network services to end user applications. Describe how the TCP/IP Application Layer protocols provide the services specified by the upper layers of the OSI model. Define how people use the Application Layer to communicate acrossthe information network. Describe the function of well-known TCP/IP applications, such as the World Wide Web and email, and their related services (HTTP, DNS,SMB, DHCP, STMP/POP, and Telnet).

    pdf75p vanmanh1008 21-05-2013 30 3   Download

  • Upon completion of this lesson, the successful participant will be able to understanding the Host-to-Host Communications Model, understanding why a Layered Network Model, understanding the seven layers of the OSI Model,... Inviting you to refer.

    ppt30p youcanletgo_02 07-01-2016 12 1   Download

  • Tầng 1: Tầng vật lý (Physical Layer) Tầng vật lý định nghĩa tất cả các đặc tả về điện và vật lý cho các thiết bị. Trong đó bao gồm bố trí của các chân cắm (pin), các hiệu điện thế, và các đặc tả về cáp nối (cable). Các thiết bị tầng vật lý bao gồm Hub, bộ lặp (repeater), thiết bị tiếp hợp mạng (network adapter) và thiết bị tiếp hợp kênh máy chủ (Host Bus Adapter)- (HBA dùng trong mạng lưu trữ (Storage Area Network)).

    ppt54p erjokoi 22-07-2010 264 133   Download

  • Describe the structure of a network, including the devices and media that are necessary for successful communications. Explain the function of protocols in network communications. Explain the advantages of using a layered model to describe network functionality. Describe the role of each layer in two recognized network models: The TCP/IP model and the OSI model. Describe the importance of addressing and naming schemes in network communications.

    pdf54p thangvu89 15-04-2010 141 32   Download

  • Application Layer Functionality and Protocols. In this chapter, you will learn to: Describe how the functions of the three upper OSI model layers provide network services to end user applications. Describe how the TCP/IP Application Layer protocols provide the services specified by the upper layers of the OSI model. Define how people use the Application Layer to communicate across the information network. Describe the function of well-known TCP/IP applications, such as the World Wide Web and email, and their related services (HTTP, DNS, SMB, DHCP, SMTP/POP, and Telnet)....

    pdf51p thanhtung_hk 03-11-2010 82 25   Download

  • A computer network is the infrastructure that allows two or more computers (called hosts) to communicate with each other. The network achieves this by providing a set of rules for communication, called protocols, which should be observed by all participating hosts. The need for a protocol should be obvious: it allows different computers from different vendors and with different operating characteristics to ‘speak the same language’. This chapter introduces the fundamental concepts of computer networks.

    pdf198p dee07_bk 04-02-2012 58 23   Download

  • A networking firewall is a logical barrier designed to prevent unauthorized or unwanted communications between sections of a computer network. Linux-based firewalls besides being highly customizable and versatile are also robust, inexpensive, and reliable. The two things needed to build firewalls and QoS with Linux are two packages named netfilter and iproute. While netfilter is a packet-filtering framework included in the Linux kernels 2.4 and 2.6, iproute is a package containing a few utilities that allow Linux users to do advanced routing and traffic shaping....

    pdf256p ptng13 06-06-2012 56 12   Download

  • Packet Switched Technologies In the same way we started with the transmission infrastructure for circuit switched technologies, packet switching has a similar underlying infrastructure. At this stage, it is worth reviewing the International Standards Organisation’s Open Systems Interconnect model (ISO-OSI) that was used in Chapter 1 as a framework for the telephony signalling protocols (Figure 5.1).

    pdf32p huggoo 23-08-2010 49 10   Download


Đồng bộ tài khoản