osi network layer functions
Tài liệu Chapter 5 - OSI Network Layer CCNA Exploration version 4.0 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 ... the control communication between the Data Link layer and the Network layer is the establishment of a maximum size for the packet. Network Layer FieldsHọc viện mạng Bách khoa - Website: ... 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 contents...
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SANS Institute InfoSec Reading Room: Applying the OSI Seven Layer Network Model To Information Security pptx
... 1999URL:http://mike.passwall.com/networking/netmodels/isoosi7layermodel.html[4] R Feig, “The OSI Reference Model”, Date Unknown,URL:http://www2.rad.com/networks/1994 /osi/ osi.htm[5] H S Ha, OSI 7 Layer , 2000URL:http://userpages.umbc.edu/~hha1 /network/ protocol.html[6] ... Room Author retains full rights.Page 9 Applying the OSI seven -layer model to Information Security Layer Three - Network Layer The Network layer is concerned with the global topology of the internet ... Applying the OSI seven -layer model to Information Security Layer Six- Presentation Layer The Presentation Layer deals with the organization of data passed from theapplication layer into the network. ...
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Network Layer
... 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 ... conventionsICMP protocol•error reporting•router “signaling”Transport layer: TCP, UDPLink layer physical layer Network layer Network Layer 4-41IP addressing: CIDRCIDR: Classless InterDomain Routing❍subnet ... loss)nocongestionnocongestionyesnoGuarantees ? Network Layer 4-31The Internet Network layer forwardingtableHost, router network layer functions: Routing protocols•path selection•RIP,...
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The network layer Addressing and routing
... supposed that 2 IP sub -network share physically the same LAN. The stations on eachsub -network then will see circulating all the packets diffused on the physic network. 1The network layer Addressing ... rentallease)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 ofsub -network and the numbers of hosts...
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Tài liệu Chapter 8 - OSI Physical Layer CCNA Exploration 4.0 pdf
... Transport layer, placed into packets by the Network layer, and further encapsulated as frames by the Data Link layer. The purpose of the Physical layer is to create the electrical, optical, ... context to give them meaning to the upper layers of the networking model. This framing method can be provided by the Data Link layer, the Physical layer, or by both.• Signal patterns can indicate: ... as network adapters (NICs), interfaces and connectors, cable materials, and cable designs are all specified in standards associated with the Physical layer. Characteristics & Uses of Network...
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Tài liệu Chapter 4 - OSI Transport Layer CCNA Exploration version 4.0 docx
... numbers– FIN: No more data from senderTransport Layer Role and Services• Major functions of the transport layer and the role it plays in data networks – Tracking the individual communication ... viện mạng Bách khoa - Website: www.bkacad.com 29Transport Layer Role and Services• Describe the role of segments in the transport layer and the two principle ways segments can be marked for ... Bách khoa - Website: www.bkacad.com 25Transport Layer Role and ServicesHọc viện mạng Bách khoa - Website: www.bkacad.com 9• At the Transport layer the three basic operations of reliability...
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Chapter 19 Network Layer: Logical Addressing potx
... discussed in this section:19.7Numbering systems are reviewed in Appendix B.Note19.1Chapter 19 Network Layer: Logical AddressingCopyright © The McGraw-Hill Companies, Inc. Permission required for ... ISP19.32The first address in a block is normally not assigned to any device; it is used as the network address that represents the organization to the rest of the world.Note19.4919-2 IPv6 ... Appendix B) and add dots for separation.19.48Figure 19.13 An ISP and NAT19.31Figure 19.4 A network configuration for the block 205.16.37.32/2819.30c. The number of addresses can be found...
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Chapter 20 Network Layer: Internet Protocol pot
... The protocol field is the next byte (02), which means that the upper -layer protocol is IGMP.Example 20.420.10Figure 20.4 Position of IPv4 in TCP/IP protocol suite20.22In an IPv4 packet, the ... bytes are the options.Example 20.220.41Table 20.6 Next header codes for IPv620.1Chapter 20 Network Layer: Internet ProtocolCopyright © The McGraw-Hill Companies, Inc. Permission required for ... of data (40 20).−Example 20.320.50Figure 20.20 Tunneling strategy20.7Switching at the network layer in the Internet uses the datagram approach to packet switching.Note20.920-2 IPv420-2...
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Chapter 21 Network Layer: Address Mapping, Error Reporting, and Multicasting pdf
... discussed in this section:Topics discussed in this section:21.38Imagine there are three hosts in a network, as shown in Figure 21.19. A query message was received at time 0; the random delay time...
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Chapter 22 Network Layer: Delivery, Forwarding, and Routing ppt
... notmatch the 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).22.43Figure ... match the corresponding network address.2. The second mask (/25) is applied to the destination address. The result is 180.70.65.128, which matches the corresponding network address. The next-hop ... Direct and indirect delivery22.24Example 22.6 (continued)The destination column here defines the network address. The term gateway used by UNIX is synonymous with router. This column actually...
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Mobile and wireless communications network layer and circuit level design Part 1 potx
... chapters related to Network Aspects and Applications of Ad Hoc, Sensor and Mesh Networks. In this section, the network layer design in cellular, ad hoc, sensor and mesh networks for specic ... on various network parameters, such as the network throughput or the CBP achieved, to ensure that no SC or user class dominates the network resources. 3. Mobile & Wireless Networks Modeling ... Communications: Network layer and circuit level design,Edited by Salma Ait Fares and Fumiyuki Adachi p. cm.ISBN 978-953-307-042-1MobileandWirelessCommunications: Network layer andcircuitleveldesign6...
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Mobile and wireless communications network layer and circuit level design Part 2 potx
... reserves. Both networking scenarios are having high application value in WSN arena, an all-to-all networking scenario and a mobile data collector based data collection network. In both networks we ... node MobileandWirelessCommunications: Network layer andcircuitleveldesign40 Fig. 1. - An all-to-all network consisting of six nodes. The network model assumes followings; Nodes ... minR , MobileandWirelessCommunications: Network layer andcircuitleveldesign42 Definition 1. Limited Capacity Network: A multi-casting network satisfying the equation (8) on the number...
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Mobile and wireless communications network layer and circuit level design Part 3 pot
... IQMESH network chaining is shown in Fig. 5. Two networks in Fig. 5, Network 1 and Network 2, are independent IQRF wireless networks. Every such network has one Coordinator (C) and one or more ... in the Network 1 and simultaneously create own Network 2 as its Coordinator. Listening communication in both networks, some packets received in the Network 1 would be forwarded to the Network ... IQMESH network chaining is shown in Fig. 5. Two networks in Fig. 5, Network 1 and Network 2, are independent IQRF wireless networks. Every such network has one Coordinator (C) and one or more...
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Mobile and wireless communications network layer and circuit level design Part 5 docx
... at overcoming the opposing substrate requirements of circuits and antennas. These largely involve the use of layered materials with high and low permittivities in adjacent layers (Chen, 2008). ... 2008). However such 8MobileandWirelessCommunications: Network layer andcircuitleveldesign116 ground plane etched on the opposite side of the dielectric substrate. It provides a bandwidth ... gallium arsenide substrate with the feed network, and the radiating elements located on an adjacent (low dielectric constant) substrate, and coupled to the feed network through apertures in the ground...
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Mobile and wireless communications network layer and circuit level design Part 7 docx
... the deposition of a 500 nm thick graded AlGaN layer on the substrate to reduce the number of threading dislocations in the GaN buffer layer due to the lattice mismatch between GaN and SiC layers. ... buffer layer is then deposited to get lower background carrier concentration, which accordingly results in increased electron mobility in the above unintentionally doped layers. The buffer layer ... passivation layer is then deposited to reduce the surface trapping induced drain-current dispersion. Field plate connected to the gate, at the gate pad, and deposited over the passivation layer was...
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