osi model network layer ppt

... 39 Network Layer Protocols and Internet Protocol (IP) Học viện mạng Bách khoa - Website: www.bkacad.com 3 • Define the basic role of the Network Layer in data networks • The protocols of the OSI ... networks • The protocols of the OSI model Network layer specify addressing and processes that enable Transport layer data to be packaged and transported. The Network layer encapsulation allows its ... the control communication between the Data Link layer and the Network layer is the establishment of a maximum size for the packet. Network Layer Fields Học viện mạng Bách khoa - Website:...

Ngày tải lên: 22/12/2013, 13:17

Ngày tải lên: 21/12/2013, 19:15

... each layer. Also list the networking devices that operate at each layer, if applicable. Layer # Name Encapsulation Unit or Logical Grouping Devices or Components that Operate at this Layer ... 2 - 2 CCNA 1: Networking Basics v 3.0 - Lab 2.3.7 Copyright  2003, Cisco Systems, Inc. 2. List the seven layers of the OSI model and the encapsulation unit used to...

Ngày tải lên: 21/12/2013, 19:15

... faster. Layer 3 – The Network Layer Layer 3, the network layer of the OSI model, provides an end-to-end logical addressing system so that a packet of data can be routed across several layer 2 networks ... 9 T he TCP/IP model uses four layers to perform the functions of the seven -layer OSI model. The network access layer is functionally equal to a combination of OSI physical and data link layers (1 ... differently layered arrangement. An Overview of the OSI Model Paul Simoneau, Global Knowledge Course Director, Network+ , CCNA, CTP The OSI Model: Understanding the Seven Layers of Computer Networks Copyright...

Ngày tải lên: 24/01/2014, 09:20

Ngày tải lên: 24/01/2014, 09:20

Ngày tải lên: 06/03/2014, 12:20

Ngày tải lên: 17/03/2014, 22:20

Ngày tải lên: 21/06/2014, 14:20

Ngày tải lên: 21/06/2014, 14:20

Ngày tải lên: 21/06/2014, 18:20

Ngày tải lên: 27/06/2014, 01:21

Ngày tải lên: 21/08/2012, 16:18

... Session Network Data link Physical zone 1 zone 2 H2:H.323 Protocols in relation to the OSI model G.711 G.722 G.728 G.729 G.723.1.1 Presentation H.261 ... I/O Equipment Audio I/O Equipment User Data Applications System Control User Interface H.225.0 Layer Locall Area Network Intererface recovery Path Delay Video codec H261, H263 Audio condec G711, G722,...

Ngày tải lên: 24/08/2012, 21:11

... link Network Layer 4-11 Network layer connection and connection-less service ❒ datagram network provides network- layer connectionless service ❒ VC network provides network- layer connection service ❒ analogous ... conventions ICMP protocol •error reporting • router “signaling” Transport layer: TCP, UDP Link layer physical layer Network layer Network Layer 4-41 IP addressing: CIDR CIDR: Classless InterDomain Routing ❍ subnet ... datagram) Input Port Output Port Memory System Bus Network Layer 4-9 Network layer service models: Network Architecture Internet ATM ATM ATM ATM Service Model best effort CBR VBR ABR UBR Bandwidth none constant rate guaranteed rate guaranteed...

Ngày tải lên: 12/09/2012, 15:06

... supposed that 2 IP sub -network share physically the same LAN. The stations on each sub -network then will see circulating all the packets diffused on the physic network. 1 The network layer Addressing ... rental lease) 7 - Engineers network link: 2B-14-62-91-C9-B1 - Engineers network link towards the external router: 2B-14-62-3F-39-21 - Commercial network link: 1C-96-AA-F4-C2-91 - Commercial network link towards ... 194.12.230.140. 1. Propose a mask of sub -network for the network of company. 194.12.230.0 is a Class C address, the last byte must be used to encode the numbers of sub -network and the numbers of hosts...

Ngày tải lên: 17/09/2012, 09:13

... O 4 .a, O 2 .b, O 2 .c, O 2 .a}. � 5 Comments Network of C-objects is a useful model. It can be used to represent knowledge in intelligent systems. This model can be researched and developed more ... McGrawHill, 1994. [8] P.H.Winston, Artificial Intelligence, Addison-Weysley, 1993. A Knowledgeable Model: Network of C-Objects Hoang Kiem - Do Van Nhon - Le Hoai Bac Information Technology Department University ... t m (A m-1 ), and D(A) = A m , we have A 0 ⊆ A 1 ⊆ . . . ⊆ A m = D(A) ⊆ M. A problem A → B on a network (O,F) is called solvable if and only if there is a sequence D ⊆ F ∪ O such that D(A) ⊇...

Ngày tải lên: 18/09/2012, 10:13

... implicit. Module 5: Managing the Business Logic Layer 41 The Predictor offers two types of analysis models:  Predictor model The Predictor model is used to provide real-time purchase recommendations ... targeting content  Use the Predictor resource to build analysis models that predict users’ shopping interests  Segment model  Predictor model *****************************I LLEGAL FOR N ON -T RAINER ... unknown profile properties about users. A Predictor model summarizes the relationships in the data in the form of rules. For example, a Predictor model may predict that if a visitor of a site is...

Ngày tải lên: 10/12/2013, 16:16

... in-depth look at the OSI model to understand how the OSI model expands upon the functionality defined in the DoD model. Understanding the OSI Model The Open Systems Interconnection (OSI) model was originally ... suite. Layer One: Network Interface The Network Interface layer of the DoD model corresponds to the lowest level of the TCP/IP protocol architecture and correlates to Layers 1 and 2 in the OSI model. The Network ... later in this chapter. Layer Four: Application The Application layer of the DoD model operates at the Session, Presentation, and Application layers of the OSI model. This layer enables applications...

Ngày tải lên: 10/12/2013, 17:15