Nmobile network layer pdf

Data communication and computer network 8 let us go through various lan technologies in brief. Introduction a computer network is the infrastructure that allows two or more computers called hosts to communicate with each other. The network addresses available to the transport layer should use a uniform numbering plan even across lans and wans. Where 4g uses frequencies below 6 ghz, newer 5g networks use shorter wavelength signals with much higher frequencies, in the range of 30 ghz to 300 ghz. Ip is the standard for routing packets across interconnected networkshence, the name internet. Therefore, if a mobile host changes access networks, then must change ip address. The transport layer should be shielded from the number, type and topology of the subnets present. The latest technology is the 5g network, which promises even faster speeds and greater bandwidth compared with 4g while reducing interference with other nearby wireless devices. A mobile wireless network is an hardware and software infrastructure allowing to connect. The services provided should be independent of the underlying technology. Computer network notestransport layer and network layer pdf. From a more practical viewpoint, a network of networks is. Pdf analysis of mobile networks signal strength for gsm.

Originally a network of fixedline analog telephone systems, the pstn is now almost entirely digital, and now includes mobile as well as fixed telephones. It provides protocol enhancement that allows transparent routing of ip datagrams to mobile nodes in the internet. Each computer on a network must have a network card. Kth information and communication technology 2g30 mobile and wireless network architectures maguire total pages. It is defined in rfc 3748, which made rfc 2284 obsolete, and is updated by rfc 5247. Introduction in this protocols and mechanisms developed for the network layer to support mobility. Computer network notestransport layer and network layer. The network layer has been designed with the following goals.

Mobile networking concepts and protocols cnt 5517 dr. Bestselling authors and expert instructors keith barker and kevin wallace share preparation hints and testtaking tips, helping you identify areas of weakness and improve. Layer 3 network layer overview next we move on to the network layer, layer 3 of the osi model which controls broadcast domains. From the network layers standpoint, how mobile is a user. Mobile communication networks experience a tremendous development clearly. Network layer and ip protocol cse 32, winter 2010 instructor. Eap is an authentication framework for providing the transport and usage of material and parameters generated by eap methods. For these two layers the 5g mobile networks is likely to be based on open.

At a fundamental level, one can regard such a network of networks as simply another network, as in fig. It connects the computer to the cabling, which in turn links all of the computers on the network together. Mobile networking evolution 1st generation wireless 1970s ex. The network slicing management functions such as the network slice management function nsmf, network slice subnet management function nssmf and communication service management function csmf. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Mobile ipv6 is a network layer mobility protocol that has tried to address the drawbacks associated with mobile ipv4, such as triangular routing and route optimization in addition to. Mobile network layer internet protocols router computing. Core network bts bsc gprs access bts bsc gsm network 2g ggsn sgsn cn internet ip mobility and cellular networks mail. Most modern network cards are 10100 nics and can operate at either 10mbps or 100mbps. Wireless and mobile networks have provided the flexibility required for an increasingly mobile workforce. The services provided by the network layer should be independent of the subnet topology. Mobile ip adds mobility support to the internet network layer protocol ip. Presentation application session transport network data link physical layer 7 layer 6 layer 5 layer 4 layer 3 layer 2 layer.

Conventional tcpip protocols, indirect tcp, snooping tcp, mobile tcp, other transport layer protocols for mobile networks. Most modern network cards are 10100 nics and can operate at. Comparative analysis of network layer and application. There are sections discussing the network layer and internet. Isbn 9789533070421, pdf isbn 9789535158646, published 20100101. Mobile ipv6 is a network layer mobility protocol that has tried to address the drawbacks associated with mobile ipv4, such as triangular routing and route optimization in addition to providing inbuilt security support. Network locator topological point of attachment for routing purposes. As shown in figure 1a, the worldwide number of cellular, gsm, and pcs subscribers increased from. The mobile ip protocol allows locationindependent routing of ip datagrams on the internet.

Comparative analysis of network layer and application layer. Users of the service need not be aware of the physical implementation of the network for all they know, theyre messages could be transported via carrier pigeon. Network layer 416 application transport network data link physical application transport network data link physical 1. Host identifier unique for a host and tcpip stack 5.

Simplifies network management, minimizes operational costs 10gbe specifies full duplex operation and optical fiber transmission medium 10gbe media types. Mobile network layer mobile ip mobile ip ip mobility is a protocol that is designed to allow mobile device users to move from one network to another while maintaining a permanent ip address. If we view the original check as a unit of data needed to be sent, we now have two envelopes required. Ip operation, fields and functions fragmentation and reassembly of datagrams icmp messages and meanings ip ip internet protocol does most of the work in the tcpip protocol suite. Chapter 1 introduction to networking and the osi model. Extensible authentication protocol eap is an authentication framework frequently used in network and internet connections. Ip address, ip prefix aggregations of ip addresses. Contents at a glance introduction xxv chapter 1 computer network fundamentals 2 chapter 2 the osi reference model 28 chapter 3 network components 60 chapter 4 ethernet technology 112 chapter 5 ipv4 and ipv6 addresses 148 chapter 6 routing ip packets 198 chapter 7 widearea networks 230 chapter 8 wireless lans 266 chapter 9 network optimization 296 chapter 10. Mobile and wireless communications network layer and. Understand principles behind network layer services. Public land mobile network plmn is a network that is established and. Network layer network layer 41 network layer functions transport packet from sending to receiving hosts network layer entity in every host, router functions. Network layer takes the responsibility for routing packets from source to destination within or outside a subnet. Mobile network layer free download as powerpoint presentation.

The most significant protocol at layer 3 also called the network layer is the internet protocol, or ip. Seamless transport of ethernet frames across entire network. Mobile and wireless communications network layer and circuit. The tcpip guide mobile ip home agent registration and. Two gbe physical layer specifications for optical fiber transmission. Network layer manages options pertaining to host and network addressing, managing subnetworks, and internetworking. The primary responsibility of network layer is to send packets from the source network to the destination network using a perdetermined routing methods. A physically mobile user will present a very different set of challenges to the network layer, depending on how he or she moves between points of attachment to the network. Infrastructureless or ad hoc networks network and other layers. Also, the network layer provides link layer independence, interlink layer roaming, and link layer transparency. At one end of the spectrum, a user may carry a laptop with a wireless network interface card around in a building. Module 4 discuss how broadcast are performed, the devices that work at the network layer, then we explain in details what happens to the data that facilitates its transmission over the network.

Pdf we explore various network layer concepts that play a crucial role in the design of mobile networking systems. Ethernet ethernet is a widely deployed lan technology. This technology was invented by bob metcalfe and d. Mobile ip mobile ip ip mobility is a protocol that is designed to allow mobile device users to move from one network to another while maintaining a permanent ip address. Mobility of nodes manages by the network layer of the internet. It is transparent to any applications while providing mobility. Computer network layers cis748 class notes alex s 1 the layers normally, the task of communication from computer to computer is broken up into layers. Ip and mobile ip network layers, packet delivery and handover management, location management, registration, tunneling and encapsulation, route optimization, dhcp. New vc number comes from forwarding table forwarding table. Mobile ip is an open standard, defined by the internet engineering task force ietf rfc 3220.

Receive data forwarding table destination address range link interface 1100 00010111 0000 00000000 through 0 1100 00010111 00010111 11111111 4 billion. The network achieves this by providing a set of rules for communication, called protocols, which should be observed by all participating hosts. Basesx, baselx 5 km for smf, 550 m for mmf 550 m 50. Each device attached to the network has a corresponding stack of these layers, where each layer conceptually talks to the corresponding layer on the other computer. It is an encapsulating protocol similar to the way ethernet is an encapsulating protocol. Oct 05, 2001 no other routers in the network or any hosts with which the mobile node is communicating need to be changed or even aware of the movement of the mobile node. Foreign agent router on a mobile nodes visited network which provides. Application, transport, network and link layers last modified. If on its home network it communicates as a regular ip device, but if on a foreign network it must activate mobile ip. Internet router architecture 8 router 3layer physical, datalink, network device, with 3 key functions. Notice that the bottom layer is identified as the first layer. Network which uses shared media has high probability of. Network layer responsibility direct communication model. Routing based on ip destination address, network prefix e.