ccna exploration chapter 5 osi network layer

... 3158 207.138.126.152:http ESTABLISHED TCP kenpc :3159 207.138.126.169:http ESTABLISHED C:\> 24 Trang 25Transport Layer Role and Services ° Describe the role of segments in the transport layer ... Receiver 1500 bytes - Sequence number 1 >> Receive 1- 1500 1500 bytes - Sequence number 1501 >> Receive 1501 - 3000 Receive Acknowledge =&£ Acknowledgement number 3001 1500 bytes ... 1500 bytes Sequence number 1 vt >> Receive 1501 - 3000 1500 bytes Sequence number 1501 yt >> Receive 1501 - 3000 Receive Acknowledge ~<& Acknowledgement number 3001 1500

Ngày tải lên: 22/12/2013, 13:17

... © 2014 Computer Networks 2 Chapter 5: Network Design 31 One More  Network is 192.168.55.0  You want to divide the network into subnets  You will have approximately 25 nodes per subnet ... 2014 Computer Networks 2 Chapter 5: Network Design 1 Chapter 5.2: Network Design NGUYỄN CAO ĐẠT E-mail:dat@hcmut.edu.vn Trang 2Hochiminh City University Of Technology Computer Networks 2 Outline ... Networks 2 Chapter 5: Network Design 51 Distance-Vector Routing  Router maintains a routing table that lists known networks, direction (vector) to each network, and the distance to each network

Ngày tải lên: 26/11/2016, 02:12

... error-checking information  Put data on the network and send it Trang 4Seven-Layer OSI ModelTrang 5OSI Layer RelationshipsTrang 6Application Layer (7) Topmost layer  Represents services that directly ... Trang 2Open Systems Interconnection (OSI) Model Network Communications  OSI Model  Windows NT and the OSI Model Trang 3 Network Communications Sending Computer Must:  Recognize ... Referred to as the “hardware layer” Trang 14OSI Model Layer MnemonicsPresentation People Pizza Trang 15Packet Assembly and Disassembly Process Trang 16Windows NT and OSITrang 17Software and ProtocolsTrang

Ngày tải lên: 15/05/2017, 14:44

... Computer Networks 2 Chapter 5: Network Design 11 Top-Down Network Design  Phase 2 – Logical Network Design Trang 12Top-Down Network Design  Phase 3 – Physical Network Design campus networks ... quality, Trang 5Hochiminh City University Of Technology Computer Science & Engineering © 2014 Computer Networks 2 Chapter 5: Network Design 5 Network Design Principle  Network design ... Engineering © 2014 Computer Networks 2 Chapter 5: Network Design 1 Chapter 5.1: Network Design NGUYỄN CAO ĐẠT E-mail:dat@hcmut.edu.vn Trang 2Outline  Introduction  Network Design Methology

Ngày tải lên: 26/11/2016, 02:11

... Trang 1Chapter 5.3: Network Design NGUYỄN CAO ĐẠT E-mail:dat@hcmut.edu.vn Trang 2Outline campus networks enterprise networks  Testing, Optimizing, and Documenting the Network Design ... analyzer on Network A protocol analyzer on Network B located on Network A and access Server 1 on Network B protocol analyzers Trang 62Example Test Script (continued) 5 Display data on Network A’s ... internal network provider stay in business Trang 49Selecting a Provider (continued) meet your needs providers for redundancy Trang 50Outline  Physical Network Design the Network Design Trang 51necessary

Ngày tải lên: 26/11/2016, 02:14

... Trang 1OSI network layerCCNA Exploration Semester 1 CCNA Exploration Semester 1 Chapter 5 Trang 2OSI network layerTCP, UDP IP Ethernet, WAN technologies ... Data stream Trang 3Network layer topicsrouted protocol Routing – sending packets the right way Trang 4Purpose of layer 3destination, then route it. Trang 5Layer 3 protocolA layer 3 protocol such ... data to the appropriate upper-layer protocol.
01 ICMP
06 TCP
17 UDP
17 UDP
UNIX: 255
Linux: 64 or 255 depending upon vendor and version
Microsoft Windows 95: 32
Microsoft Vista: 128

Ngày tải lên: 01/04/2014, 12:20

... rights reserved Cisco PublicITE PC v4.0 OSI Network Layer Network Fundamentals – Chapter 5 Trang 2ITE PC v4.0Objectives  Identify the role of the Network Layer, as it describes communication ... destination network Trang 3ITE PC v4.0Network Layer Protocols and Internet Protocol (IP)  Define the basic role of the Network Layer in data networks Trang 4ITE PC v4.0Network Layer Protocols ... protocol Trang 5ITE PC v4.0Network Layer Protocols and Internet Protocol (IP)  Describe the implications for the use of the IP protocol as it is connectionless Trang 6ITE PC v4.0Network Layer Protocols

Ngày tải lên: 06/07/2014, 06:21

... from 224.0.0.0 to 239.255.255.255 is masked and delivered to the Ethernet interface. Example 21.9 Trang 51Example 21.9 (continued)Trang 5221-4 ICMPv6 We discussed IPv6 in Chapter 20 Another protocol ... Reporting Query Topics discussed in this section: Trang 53Figure 21.23 Comparison of network layers in version 4 and version 6Trang 5421.54Trang 55Table 21.4 Comparison of query messages in ICMPv4 ... 130.23.43.25 and physical address A4:6E:F4:59:83:AB The two hosts are on the same Ethernet network Show the ARP request and reply packets encapsulated in Ethernet frames. Solution Figure 21.5 shows

Ngày tải lên: 06/03/2014, 12:20

... Trang 1Chapter 22Network Layer: Delivery, Forwarding, and Routing Trang 222-1 DELIVERYThe network layer supervises the handling of the packets by the underlying physical networks We define ... section: Trang 52Figure 22.33 UnicastingTrang 53In unicasting, the router forwards the received packet through only one of its interfaces. Note Trang 54Figure 22.34 MulticastingTrang 55In multicasting, ... corresponding network address. 2 The second mask (/25) is applied to the destination address The result is 201.4.22.0, which does not match the corresponding network address (row 2). Trang 15Example

Ngày tải lên: 06/03/2014, 12:20

... Broadcast – a message addressed to all hosts on a network Uses network’s broadcast address or 255.255.255.255 locallybroadcast address or 255.255.255.255 locally
Multicast – a message addressed to ... 192.168.1.70 Subnet mask 00000000 0 255.255.255.0 Subnet mask 00000000 0 255.255.255.0 Network 00000000 0 192.168.1.0 Broadcast 11111111 255 192.168.1.255 First host 00000001 1 192.168.1.1 Trang ... mask 11110000 240 255.255.255.240 Subnet mask 11110000 240 255.255.255.240 Network 01000000 64 192.168.1.64 Broadcast 01001111 79 192.168.1.79 First host 01000001 65 192.168.1.65 Trang 34Unicast,

Ngày tải lên: 01/04/2014, 12:20

... of 10.5 mm and width w f =3.6 mm to ensure 50-Ω input impedance with a feed gap of g = 0.5 mm The 50 -microstrip line is printed on the same side of the substrate as the radiator Trang 15where ... on the antenna bandwidth is obtained when the two transitions steps are used -40 -35 -30 -25 -20 -15 -10 -5 0 Fig 4 Effects of step width 6.4 Results and discussion After taking into account ... on the antenna bandwidth is obtained when the two transitions steps are used -40 -35 -30 -25 -20 -15 -10 -5 0 W2=14mm W2=16mm W2=20mm Fig 4 Effects of step width 6.4 Results and discussion

Ngày tải lên: 21/06/2014, 14:20

... Trang 1NETWORK+ GUIDE TO NETWORKS, FOURTH EDITION Chapter 5 Networking Hardware Trang 2OBJECTIVES  Identify the functions of LAN connectivity hardware  Install and configure a NIC (Network ... that network  Operate at Network layer  Protocol-dependent Trang 39 Modular router: multiple slots to hold different interface cards or other devices  All routers can:  Connect dissimilar networks ... read by another system  Operates at multiple OSI Model layers Trang 46SUMMARY  Network adapters come in a variety of types depending on access method, network transmission speed, connector interfaces,

Ngày tải lên: 27/06/2014, 05:20

... Trang 1OSI Network LayerNetwork Fundamentals – Chapter 5 Trang 2– Examine the most common Network layer protocol, Internet Protocol (IP), and its features ... 25Why Separate Hosts into Networks? – Hierarchical Addressingnetworks over internetworks, Network layer addressing schemes are hierarchical. ƒ Using hierarchical addressing means that the layer ... Network layer, or OSI Layer 3, provides services to exchange the individual pieces of data over the network between identified end devices. –Unlike the Transport layer (OSI Layer 4), which manages

Ngày tải lên: 05/07/2014, 00:20

... Trang 1Chapter 5 - RIP version 1CCNA Exploration version 4.0 Trang 2of the RIPv1 protocol • Verify proper RIPv1 operation summarization propagated in a routed network implementing ... same major network then the subnet mask of the interface is applied to the network in the routing update. – If a routing update and the interface it’s received on belong to a different network ... 18Automatic Summarization Trang 19• Boundary Routers• RIP automatically summarizes classful networks major network to another Automatic Summarization Trang 20• Processing RIP Updates• 2 rules govern

Ngày tải lên: 28/07/2014, 18:21

... be a network layer, or Layer 3, protocol OSI does define a unique Layer 3 protocol called Connectionless Network Services (CLNS), but, as usual with OSI protocols, you rarely see it in networks ... 223.255.255.0 also are reserved. Memorizing the contents of Table 5-5 should be one of the first things you do in preparation for the CCNA exam(s) Engineers should be able to categorize a network ... design in Figure 5-5 requires six groups Unlike Figure 5-5, this figure uses six subnets, each of which is a subnet of a single Class B network This design subnets Class B network 150.150.0.0, which

Ngày tải lên: 13/08/2014, 13:21

... 11Overview of Network Layer Functions 103This section next examines the concept of network layer addressing and how it aids the routing process Network Layer (Layer 3) Addressing Network layer protocols ... be a network layer, or Layer 3, protocol OSI does define a unique Layer 3 protocol called Connectionless Network Services (CLNS), but, as usual with OSI protocols, you rarely see it in networks ... the network layer uses the data link layer, the significance of the difference will become obvious Trang 9Overview of Network Layer Functions 101Network Layer Interaction with the Data Link Layer

Ngày tải lên: 14/08/2014, 15:21

... 1Module 01 InterNetwork OverviewChapter 03 Data Link Layer Fundamentals: Ethernet LANs Trang 2Table of Content1 Typical LAN Features for OSI Layer 1 2 Typical LAN Features for OSI Layer 2 3 Early ... 31 Typical LAN Features for OSI Layer 1  The OSI physical layer, or Layer 1, defines the details of how to move data from one device to another  The OSI physical layer defines the standards ... defines the standards used to send and receive bits across a physical network. Trang 42 Typical LAN Features for OSI Layer 2 Trang 5Data Link Function 1: Arbitration The specifications for these

Ngày tải lên: 12/08/2015, 09:13

... a destination network H c vi n m ng Bách khoa - Website: www.bkacad.com Network Layer Protocols and Internet Protocol (IP) • • Define the basic role of the Network Layer in data networks The protocols ... 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 ... need to know network portion (network address) to indicate the best path to reach the network H c vi n m ng Bách khoa - Website: www.bkacad.com 35 Routing Protocols • Routing is an OSI Layer function...

Ngày tải lên: 22/12/2013, 13:17

... www.bkacad.com Physical Layer Protocols & Services • The OSI Physical layer provides the means to transport across the network media the bits that make up a Data Link layer frame H c vi n m ng ... Physical layer signaling and encoding as they are used in networks Identify the basic characteristics of copper, fiber and wireless network media Describe common uses of copper, fiber and wireless network ... receiver circuitry on the network devices At this stage of the communication process, the user data has been segmented by the Transport layer, placed into packets by the Network layer, and further encapsulated...

Ngày tải lên: 22/12/2013, 13:17

... 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 ... created a network model that helps vendors create networks that are compatible with other networks The Open System Interconnection (OSI) reference model released in 1984 was the descriptive network ... of the top three layers of the OSI model: Application, Presentation and Session layers H c vi n m ng Bách khoa - Website: www.bkacad.com OSI and TCP/IP Model • The Presentation layer has three...

Ngày tải lên: 12/12/2013, 14:15