Computer Networks (Xarxes de Computadors), Degree in Computer Engineering
XC-GRAU Spring 2026 Semester.
Català

Assessments and Final Exam Dates

• First Assessment: 10/04/2026 08:00-10:00
• Final Exam: 08/06/2026 18:00-20:45

Professors

Professor	Language	Group	Office	Consultation hours
Llorenç Cerdà (coordinador) llorenc.cerdaupc.edu	Catalan	T20, L14,24,32	C6-213	Agree with the teacher by email
Jordi Domingo jordi.domingoupc.edu	T30:English, Catalan	T30,T40	D6-209	Agree with the teacher by email
Jorge García jorge.garciaupc.edu	Spanish	T10, L13,33	C6-212	Agree with the teacher by email
Alba Cañete alba.canete.garruchoupc.edu	Catalan	T50, L23,41,43		Agree with the teacher by email
Felix Freitag felixac.upc.edu	Spanish	L11,12,51,22	C6-E206	Agree with the teacher by email
Jordi Paillissé jordi.paillisseupc.edu	Catalan	L31,52,53		Agree with the teacher by email
Hamid Latif Martinez hamid.latifupc.edu	Catalan	L21,42		Agree with the teacher by email

Groups T30,L31,32,33 in English

Units

1. Introduction (included in the first asssessment, C1 and FE)
2. IP (included in the first asssessment, C1 and FE)
3. LANs (included in the FE)
4. TCP (included in the FE)
5. Applications (included in the FE)

Evaluation

Laboratory sessions

Laboratory days

Important information about laboratory sessions

• It is required submitting a paper report at the beginning of the session, answering the questions of the previous report section that there are in the lab manual. Otherwise, the lab miniassessment can not be done, and the grade of it is 0.
• The paper copy of the laboratory manual should be carried to all laboratory sessions. During the laboratory assessments you can have the paper copy of the laboratory manual. No other material is allowed, as mobile and labtops.
• It is mandatory attending the lab where you are enrolled.
• In order to change lab group it is required to find someone to swap. Use the forum "canvis de grup" from the racó for this. The interchange must be communicated to the coordinator.
• If by a justified cause you cannot attend your group for a particular session, you can go to any other group the day the same session is carried out, previously sending an email to the teacher of the group where you want to go.
• In the end of each session there will be a miniassessment of 15min about the lab realized during the same session.
• The miniassessments can only be done the same day the lab is done.

Documentation

1. Introduction
2. IP
3. LANs
4. TCP
5. Applications

Assessments and exams from previous courses: you have them in the Raco.

• Tutorial w3schools

Sockets

• Tutorial Sockets
  

Links:

• RFCs Repository
• w3schools
• w3c
• IETF
• Internet Society
• The IANA Functions
• The Internet Protocol Journal
• Ethernet
• Presentation "Xarxes mesh comunitàries i l'exemple de GuifiSants" given at FIB in 4/11/2015 (in Catalan).
• Delays in the Internet (Riot Games' case study) part-i , part-ii , part-iii .
• HTTPS Tutorial
• RIPE Training Courses

References

• Llorenç Cerdà Alabern. Xarxes de Computadors, Conceptes Bàsics (in Catalan). Ed. Virtuals UPC. Link to the book.
• J.F. Kurose and K.W. Ross. Computer Networking, a Top-Down Approach Featuring the Internet. 2a edition. Ed. Addison-Wesley.
• Larry L. Peterson and Bruce S. Davie. Computer Networks, a Systems Approach. Ed. Morgan Kaufmann.
• William Stallings. Data and Computer Communications. Ed. Prentice-Hall.
• Fred Halsall. Data Communications, Computer Networks and Open Systems. Ed. Addison-Wesley.
• Andrew S. Tanenbaum. Computer Networks. Ed. Prentice-Hall.
• Alberto León-García and Indra Widjaja. Communication Networks. Fundamental Concepts and key Architectures. Ed. Mc Graw Hill.

About TCP/IP

• Douglas Comer. Internetworking with TCP/IP Vol.1. Ed. Pearson.
• Richard Stevens. TCP/IP Illustrated, Volume 1: The Protocols. Ed. Addison-Wesley.
• Slow Start and Congestion Avoidance (article de Van Jacobson)