NETWORK LAYER IN OSI MODEL PPT

In data networks, the task of directing information efficiently to the correct destination is han- dled by hubs, routers, bridges, and switches. In this chapter, you will learn about these devices and their roles in managing data traffic. Material in this chapter relates[r]

require modifying the software. Failure of an intermediate computer or its application would break the chain on which the messages are passed.
Instead, the Internet uses the principle of network layer interconnection. Using the OSI model as an example, the goal is to[r]

17. The TCP/IP protocol suite has specifications for which layers of the OSI model?
C. 3, 4, and 5 through 7
18. Which of the following is not a function of the network layer?
D. UDP provides connectionless exchange of datagrams without acknowledgments. 19. Which of[r]

Comprehensive analyzing multi-omics biological data in different conditions is important for understanding biological mechanism in system level. Multiple or multi-layer network model gives us a new insight into simultaneously analyzing these data, for instance, to identify conserved functional modul[r]

• Determines format of communication • Determines order of communication • Determines meaning of communication
In real life, there are all kinds of rules for giving and receiving information. In school you must raise your hand and wait for the teacher to call on you before speaking.[r]

Hình 1-3: Ph ươ ng th ứ c xác l ậ p các gói tin trong mô hình OSI
Trên quan điểm mô hình mạng phân tầng tầng mỗi tầng chỉ thực hiện một chức năng là nhận dữ liệu từ tầng bên trên để chuyển giao xuống cho tầng bên dưới và ngược lại. Chức năng này thực chất là gắn thêm và gỡ bỏ phần đầu (he[r]

Customers include routing protocol implementations like routed and TCP/IP MODEL Process or Application Layer Host-to-Host Layer INTERNETWORKING LAYER Network Interface or Network Access [r]

Generally most industrial protocols are written around three layers: • The physical layer • The data link layer • The application layer When the reduced OSI model is implemented the foll[r]

However, hosts or routers which support a BOOTP relay agent MUST accept for local delivery to the relay agent BOOTREQUEST messages whose IP source address is 0.0.0.0.. BOOTREQUEST messag[r]

302 Chapter 5: Ethernet Fundamentals
address is outside the broadcast domain and the router has an identified location to send the packet. A Layer 3 device creates multiple collision and broadcast domains. Data flow through a routed IP-based network involves data moving across traffic[r]

Hình 3-12: Mô hình kết nối WAN dùng mạng Frame relay
• Giới thiệu về mạng Frame Relay
Frame relay - mạng chuyển mạch khung:
Bước sang thập kỷ 80 và đầu thập kỷ 90, công nghệ truyền thông có những bước tiến nhảy vọt đặc biệt là chế tạo và sử dụng cáp quang vào mạng truyền dẫn tạo nên ch[r]

Network driver
Program to provide interface between the network card (NIC) and higher layer protocols.
Network layer
Layer 3 in the ISO/OSI reference model, the logical network entity that services the transport layer[r]

• THE TWO MOST IMPORTANT SUCH NETWORK TRANG 10 THE OSI REFERENCE MODEL THE OSI REFERENCE MODEL • STANDS FOR OPEN SYSTEMS INTERCONNECTION • CREATED BY THE INTERNATIONAL STANDARDS ORGANIZA[r]

them in a real-world situation to troubleshoot network connectivity issues. We will revisit the OSI model and the TCP/IP-based Department of Defense (DoD) model. We’ll also review the components of the suite of protocols that make up the TCP/IP stac[r]

Thi ế t b ị FRND có th ể là các T ổ ng đ ài chuy ể n m ạ ch khung (Frame) hay t ổ ng đ ài chuy ể n m ạ ch t ế bào (Cell Relay - chuy ể n t ả i t ổ ng h ợ p các t ế bào c ủ a các d ị ch v ụ khác nhau nh ư âm thanh, truy ề n s ố li ệ u, video v.v..., m ỗ i t ế
bào độ dài 53 byte, đ[r]

TCP/IP được xem là giản lược của mô hình tham chiếu OSI với bốn tần như sau: - Tầng liên kết mạng Network Access Layer - Tầng Internet Internet Layer - Tầng giao vận Host-to-Host transpo[r]

[r]

[r]

TRANG 1 TRANG 2 OBJECTIVES ~ IDENTIFY THE SEVEN PROTOCOL LAYERS OF THE OPEN SYSTEM INTERCONNECTION OSI REFERENCE MODEL ~ DISCUSS THE FUNCTIONAL ATTRIBUTES OF EACH LAYER OF THE OPEN SYSTE[r]

"The network access layer is concerned with access to and routing data across a network for two end systems attached to the same network. Ín those cases where two đevices are attached to different networks, procedures are needed t[r]