Network Architecture I

Transcription

1 Network Architecture I Degree in: Communications Electronic Engineering Telecommunication Systems Engineering Telecommunication Technologies Engineering Telematics Engineering Universidad de Alcalá 2016/17 2 nd Year 1 st Term

2 TEACHING GUIDE Course name: Network Architecture I Code: Bachelor's Degree in: Communications Electronic Engineering Studies: Telecommunication Systems Engineering Telecommunication Technologies Engineering Telematics Engineering Department and Knowledge Area: Type: Computer Engineering Department / Telematics Engineering Obligatory ECTS Credits: 6 Curso y cuatrimestre: Teaching Staff: 2 nd, 1 st term Check Department / Web Page Office Hours: Teaching language: Will be announced on first class and Aula Virtual (Blackboard) English

3 1. COURSE SUMMARY This course, together with Network Architecture II and Communication Networks, makes up the obligatory subject of Telematics Fundamentals. The contents of this subject cover the introduction to telematics, the main components of communication networks and the required knowledge to understand their operation, to carry out performance analysis, to face up data network design and to decide about their establishment. The learning process follows a top-down approach, starting with those applications that are already being used by students, considering the requirements of those applications to work properly in a distributed environment. Then, we will descend through the different layers of the Internet protocol stack until we arrive to the link layer and its relation with the physical layer (in Network Architectures II). The transport layer is the last layer studied in Network Architectures I. More concretely, the main topics that are studied in this course are: network elements (hosts, service model, access network and core network), physical media and multiplexing, switching paradigms (circuit switching vs. packet switching), network architectures (service model, network topologies and protocols), telematics services and applications and data transport. In the first part of the course, the basic concepts that are essential to understand the operation of communication networks (such as: network elements, service model, protocol concept, basic features of physical transmission media that set up links and the concept of multiplexing) are presented. The different network technologies are classified according to their topology (mesh, star, tree), their size (WAN, MAN, LAN), the type of service that they are able to offer, the distance to the final user (access, aggregation, core), the physical media of the link used by the final user

4 (wireless, wired) and its main features (fixed, mobile). The most common access technologies nowadays are presented and the two main switching paradigms (circuit switching vs. packet switching) are discussed. The concepts of standardization and regulation are also introduced, identifying the main agents involved in both processes. After this first overview, the study continues, focused on packet switching networks, following a top-down approach to classical protocol architectures applied to a widely extended technology like TCP/IP, analyzing in depth: Distributed applications, application protocols and telematic services (web, , domain name service, file transfer). Reliable and non-reliable data transport. End to end flow and error control. Retransmission techniques. Congestion control. The practical contents of the course include activities like monitoring devices and network software, with the most widely used technologies, like Internet or TCP/IP protocol stack. The use of traffic and protocols analyzers is also studied, as well as programming assignments related to application and transport layers.

5 2. COMPETENCES The subject of Network Architectures I makes possible to obtain the following generic competences, defined in Section 3 from the Annex of the Order CIN/352/2009 (TRx), and by UAH (TRUx) for its engineering degrees. TR2 Knowledge of basic disciplines and technologies, sufficient to learn new methods and technologies and providing great versatility to adapt to new situations. Capability to solve problems with initative, creativity, making decisions, TR3 capability to communicate and trasmmit knowledge and abilities, understanding the ethical and professional responsibility of a Telecommunications Engineer work. TR5 Capability to handle specifications, norms and mandatory regulations. Capability to work in multidisciplinary groups and multilingual environments TR8 and to communicate, in written and oral forms, knowledge, procedures, results and ideas related with electronics and telecommunications. TRU1 Capability of performing analysis and synthesis. TRU3 Capability of managing the information.

6 TRU4 Capability of learning autonomously. TRU5 Capability for team work The subject of Network Architectures I makes possible to obtain the following professional competences, defined in Section 5 from the Annex of the Order CIN/352/2009: Capability to use computer and communication applications (ofimatic suites, data bases, advanced calculus, project management, CT2 visualization, etc) as a tool for development and operation of networks, services and telecommunication and electronics applications. CT3 Capability to use computer based tools to search bibliography and information related to telecommunications and electronics CT7 Knowledge and use of programming fundamentals in networks, systems and telecommunication services CT12 Knowledge and use of the concepts of network architecture, protocols and communication interfaces. Capability to discern concepts of access network versus transport CT13 network, circuit and packet switching networks, wired and mobile networks, distributed systems and distributed network applications,

7 voice services, data services, audio, video, interactive and multimedia services. Learning outcomes RA1. Identify the hardware and software components of a network architecture and data switching techniques used therein. RA2. Calculate performance metrics and delays in data networks. RA3. Interpret the main application and transport protocols TCP / IP architecture with computer tools. RA4. Develop a simple application of a telematic service using standard network communication interfaces. RA5. Investigate new aspects of networks autonomously and collaboratively using search and information management. 3. CONTENTS Units (chapters shall be specified if necessary) Network architectures: network elements, protocol, delays, network logic, reference models, TCP/IP protocols. Number of lessons, credits or hours 16 hours (4 weeks)

8 Application protocols: distributed applications, client/server model, HTTP protocol (web), domain name service (DNS), file transfer (FTP, TFTP), electronic mail service (SMTP, POP, IMAP), network programming with sockets. Transport layer: reliable and non-reliable transport, retransmission techniques, flow control, congestion control, UDP and TCP protocols. 16 hours (4 weeks) 22 hours (6 weeks)

9 4. LEARNING METHODOLOGY 4.1. Credits distribution (specify hours) Large group lessons: Reduced group lessons: 28 hours (2 hours x 14 weeks) Classroom hours: 26 hours (2 hours x 13 weeks) Partial evaluation: 2 hours Final evaluation: 2 hours Total: 58 in-class hours Students work hours: Class preparation, exercise preparation, autonomous learning, labs and quizzes, readings, final exam preparation: Total: 92 hours Total hours 150 hours 4.2. Strategies, methods, materials and learning resources Theory lectures (large groups) Concept presentation and/or review Oral presentations and other activities Practical lectures (reduced groups) Practical concept presentation and/or review Problem solving Practical lab sessions oriented to

10 strengthen previously presented concepts as well as to familiarize the student with IT and hardware tools that are useful to support the study of the subject and future professional performance (development of distributed application APIs, office automation, protocols analyzers, meters) Oral presentations and other activities Tutoring and Consultancy (individual and groups, in-room, , etc.) Autonomous working Solving questions Support to self-learning Reading assignments Activities: exercises, search for information, self-assessment quizzes 5. EVALUATION: Procedures and criteria for evaluating and grading Preferably students will be offered a system of continuous evaluation that has characteristics of formative assessment, in order to provide feedback in the process of teaching and learning by students. For this purpose the following evaluation procedures are set 1 : EVALUATION PROCEDURES Ordinary Call In the ordinary call the student will be assessed by continuous assessment (EC) process. In duly justified exceptional situations, it may benefit from a system of 1 Plagiarism of any given work will be penalized according to the rules of the regulatory processes University learning assessment (Article 34). More information:

11 evaluation by final exam. To do this the student must apply in writing to the center manager in the first two weeks, indicating the reasons that prevent him to follow continuous assessment. In this case, the center manager will communicate the decision within a maximum of 15 days. If the student does not receive a response within that period of time, the request will be considered as accepted. Extraordinary Call The extraordinary session will consist of a similar test to that arising in the evaluation system by Final Exam. EVALUATION CRITERIA Criteria must address the extent of acquisition of skills by the student. For this purpose the following are defined. CE1. The student shows knowledge and understanding of the concepts of network architectures and explained in each of the blocks of content protocols. CE2. The student is able to understand and solve practical problems of performance analysis and operation of protocols. CE3. The student is able to properly use software for protocol analysis tools used during the course. CE4. The student is able to understand the use of a simple programming interface to develop telematics applications. CE5. The student shows ability to work in teams during Small Group activities. CE6. The student is able to work autonomously, searching and properly managing information related to the contents of the subject. EVALUATION INSTRUMENTS. This section specifies the evaluation tools to be applied to each of the evaluation criteria. 1. Intermediate Tests (PEI1 and PEI2): consisting of the exposition of theoretical issues or tests about them and execution of one or more exercises. Calculation of efficiency parameters (PEI1). Operation of application protocols (PEI1 and PEI2).

12 Personal work tests with Deliverables (E): Consisting of task completion personal work which will result in a standard test deliverables documents with the results of the test or work. Laboratory Tests: Consisting of making small theoretical/practical tests and monitoring, by the teacher, the work done in Small Group sessions (PL). Final examination (PEF): namely the written exposition or test about theoretical issues and the execution of one or more exercises. Students entitled to the evaluation by Final Exam, will perform the same examination format, and additionally will perform a part responding to short questions. Criteria This section quantifies the evaluation criteria for passing the subject. Ordinary call, Continuous Students will perform a PEF exam and will be added to the kept scores of the tests of type E, PL, PEI, with the weights indicated in the table. If the PEF is higher than the one obtained with the weighted sum of all type tests result E, PL, PEI and PEF, and the student has reached at least 50% of the maximum score possible in the tests of types E and PL, the higher PEF will be the final score. Competences Learning Outcomes Criteria Instruments Weighting TR2, TR3, TR5, CT2, CT7, CT12, CT13, TRU1 RA1, RA2, RA3 CE1, CE3 CE2, PEI 35% TR2, TR3, TR5, CT2, CT7, CT12, CT13, TRU1 RA1-RA3 CE1, CE3 CE2, PEF 100% o 40% TR2, TR3, TR5, CT2, CT3, CT12, CT13, TRU1, TRU3, TRU4 RA1, RA2 RA3, RA5 CE6 E 15%

13 TR2, TR3, TR5, TR8, CT2, CT7, CT12, TRU1, TRU5 RA2, RA3, RA4 CE3, CE5 CE4, PL 10% Those students that carry out at least to one of the qualification tests (PEI1, PEI2 and PEF), will be considered as presented to the ordinary call. Ordinary call, Final Competences Learning Outcomes Criteria Instrument Weighting TR2, TR3, TR5, TR8, CT2, CT7, CT3, CT12, CT13, TRU1, TRU3, TRU4 RA1- RA5 CE1, CE2, CE3, CE4, CE6 PEF 100% Extraordinary Call, Continuous Assessment. In the extraordinary call for students under continous assesment the relationship between continuous assessment criteria, evaluation instruments and criteria is as follows: Students will perform a PEF test that will be added to scores of tests of types E, PL, PEI using the weights indicated in the table. If the PEF is higher than the one obtained with the weighted sum of all type tests result E, PL, PEI and PEF, and the student has reached at least 50% of the maximum score possible in the tests of types E and PL, the higher PEF will be the final score. Competences Learning Outcomes Criteria Instrument Weighting TR2, TR3, TR5, CT2, CT7, CT12, CT13, TRU1 RA1, RA2, RA3 CE1, CE3 CE2, PEI 35% TR2, TR3, TR5, CT2, CT7, CT12, CT13, TRU1 RA1-RA3 CE1, CE3 CE2, PEF 100% o 40%

14 TR2, TR3, TR5, CT2, CT3, CT12, CT13, TRU1, TRU3, TRU4 RA1, RA2 RA3, RA5 CE6 E 15% TR2, TR3, TR5, TR8, CT2, CT7, CT12, TRU1, TRU5 RA2, RA3, RA4 CE3, CE5 CE4, PL 10% Extraordinary Call, Final Competences Learning Outcomes Criteria Instrument Weighting TR2, TR3, TR5, TR8, CT2, CT7, CT3, CT12, CT13, TRU1, TRU3, TRU4 RA1-RA5 CE1, CE2, CE3, CE4, CE6 PEF 100% The exam of the extraordinary call will have the same format as the final exam, also with a weight of 100% of the subject. 6. BIBLIOGRAPHY Basic bibliography Computer Networking: a Top-Down Approach (6th Edition) J. Kurose & K.W. Ross Addison Wesley, Additional bibliography

15 Data and Computer Communications (9th Edition) W. Stallings Prentice Hall, Computer Networks (5th Edition) A.S. Tanenbaum Prentice-Hall, Computer Networking and the Internet (5th Edition) F. Halsall Addison Wesley, 2005.