Internet of Things for Transmission Protocol- myassignmenthelp

Questions: 1.Compare and contrast the OSI reference model with the TCP/IP networking model. Which one is more useful when working with and describing networks and why? 2. Briefly describe the Address Resolution Protocol (ARP). What is the purpose of the ARP Cache. Answers: The similarities between the OSI reference model and TCP/IP networking model are- Both of the models consist of several layers. The functionality of the layers are almost same The both are type of reference model They both are protocol stack They both are conceptual models used for description network communications These are the major differences between the OSI reference model and TCP/IP networking model OSI(OPEN SYSTEM INTERCONNECTION) TCP/IP (Transmission Control Protocol/ INTERNET PROTOCOL) OSI is a generic type which is independent of any protocol and works as a communication gateway between the network and users(Holappa, 2013). TCP/IP is based on standardized protocols. The internet has been constructed based around these protocols. It is a communication protocol which allows the hosts to connect over a network((Shang et al, 2016). It follows vertical approach. It follows horizontal approach. It has distinct presentation layer and session layer It does not contain separate presentation layer and session layer(Goralski, 2017). The transport layer assures the delivery of the packet data. In this protocol the transport layer does not guarantee the delivery of packet of data. The transport layer is connection oriented Transport layer is both connection oriented and can be also connectionless as well It has 7 layers It contains 4 layers The protocols are hidden in OSI model and can be easily replaced if the technology changes In case of TCP/IP the replacement is not possible OSI model does not fit any type of protocol TCP/IP has no issue in fitting to any protocol OSI is less reliable TCP/IP is more reliable ARP is acronym of the term address resolution plan which is an important part of IP networking(Jinhua Kejian, 2013). The ARP is defined as the protocol which is used for doing the mapping an internet protocol address(IP address) to a physical address of a machine that is identified in local address(Ancillotti, Bruno Conti, 2013). The most used protocol is now IPV4 which has a address of length of 32 bits. The Ethernet address which is attached to devices are 48 bit long though. This address is also called Media Access Control (MAC) address. ARP cache is basically a table which is used to keep a correlation between the MAC address of a machine and corresponding IP address. ARP cache accommodates ARP requests where a gateway has to deal with the sending of data packet within a local network(Tripathi Mehtre, 2013). The gateway uses ARP to locate the MAC address. The gateway may generate an ARP request, where the system will use information in the ARP cache to find the right connected device for a given address. Reference Ancillotti, E., Bruno, R., Conti, M. (2013). The role of the RPL routing protocol for smart grid communications.IEEE Communications Magazine,51(1), 75-83. Goralski, W. (2017).The illustrated network: how TCP/IP works in a modern network. Morgan Kaufmann. Holappa, M. (2013). Performance Comparison of LTE ENODEB OSI Layer 2 Implementations; Preemptive Partitioned Scheduling vs. Non-Preemptive Global Scheduling.Master's Thesis, Degree Programme in Information Networks. Jinhua, G., Kejian, X. (2013, January). ARP spoofing detection algorithm using ICMP protocol. InComputer Communication and Informatics (ICCCI), 2013 International Conference on(pp. 1-6). IEEE. Shang, W., Yu, Y., Droms, R., Zhang, L. (2016). Challenges in IoT networking via TCP/IP architecture.Technical Report NDN-0038. NDN Project. Tripathi, N., Mehtre, B. M. (2013, December). An ICMP based secondary cache approach for the detection and prevention of ARP poisoning. InComputational Intelligence and Computing Research (ICCIC), 2013 IEEE International Conference on(pp. 1-6). IEEE.