Chapter 4 network layer pdf

Ip addresses are 32 bit long, hierarchical addressing scheme. Tcp segment structure reliable data transfer flow control connection management 4. Chapter 4 network layer page has been moved chalmers. Chapter 1 introduction to networking and the osi model. Understand principles behind network layer services. Chapter 4 the network layer george washington university.

Internet protocol datagram format ipv4 addressing icmp ipv6 4. Presentation application session transport network data link physical layer 7 layer 6 layer 5 layer 4 layer 3 layer 2 layer. Theyre in powerpoint form so you see the animations. Using the proper media is an important part of network communications. Network layer chapter goals understand principles behind network layer services. Were making these slides freely available to all faculty, students, readers. Tcp udp telnet gopher nfs ftp x win tftp smtp snmp rexec dns rpc application layer transport layer network layer link interface icmp ip igmp arp rarp parviz kermani nyu. Internet protocol datagram format fragmentation ipv4 addressing ipv6 chapter 4. Cisco confidential 4 role of the transport layer 7. In particular, the network layer moves transport layer segments from one host to another.

It is then the job of the network layer to get the segment to the destination host and pass the segment up the protocol stack to the transport layer. Network layer silvia giordano ica, epfl the transport layer relies on the services of the network layer, which provides a communication service between hosts. Notice that the bottom layer is identified as the first layer. Provides the means to both send and receive data when running multiple applications. Chapter 4 the network layer free ebook download as powerpoint presentation. The first network has an mtu of 1024b, and the second has an mtu of 512 bytes. What is the maximum bandwidth at which an ip host can send 576byte packets without. An introduction to network layer services and principles. A top down approach 6th edition jim kurose, keith ross addisonwesley march 2012 a note on the use of these ppt slides.

It is designed to provide an additional opportunity to practice the skills and knowledge presented in the chapter and to prepare for the chapter 4 exam. Network layer 4 9 virtual circuits call setup, teardown for each call before data can flow each packet carries vc identifier not destination host address every router on sourcedest path maintains statefor each passing connection link, router resources bandwidth, buffers may be allocated to vc dedicated resources predictable. A top down approach 6th edition if you use these slides e. Internet protocol datagram format ipv4 addressing ipv6 4. A message from the upper layer is divided into the packets. Ip is a standard that defines the manner in which the network layers of two hosts interact. Explain the role of the data link layer in supporting communications across data networks.

The physical layer standards address three functional areas. Describe the purpose and functions of the physical layer in the network. The osi physical layer provides the means to transport the bits that make up a data link layer frame across the network media. Internet protocol datagram format ipv4 addressing icmp ipv6 internet rip ospf bgp 4. The slides are adapted from kurose and ross, computer networks 5th edition and are 2009, kurose and ross. Internet protocol mdatagram format mipv4 addressing micmp mipv6 r4. Explain how physical layer protocols and services support communications across data networks. Describe basic principles of the physical layer standards. Network layer part a course on computer communication and networks, cthgu the slidesareadaptation ofthe slidesmade availableby the authorsofthe coursesmain textbook network layer 4 2 chapter 4. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Give the sizes and offsets of the sequence of fragments delivered to the network layer at the destination host, assume all ip headers are 20 bytes.