Computer Networking - Fall 2017
this page contains a preliminary program. It is
therefore subject to change, and in fact it is most likely out of sync
with respect to the actual course
. Please, monitor the announcements
and always refer to the schedule
for more details on the topics covered in the course.
- Introduction to networking and the Internet [4 hours]
- the course in one lecture: a tour of all the topics of the
course through an end-to-end scenario
- the layered architecture
- what is a protocol
- basic network services: connection-oriented and connectionless
service; packet switching vs. circuit switching.
- Application layer [16 hours]
- the Web: HTTP; web caching;
- e-mail: transfer protocol (SMTP); access protocols (POP and IMAP);
message format (MIME).
- implementing a simple client/server program and the OS primitives;
- peer to peer systems (BitTorrent)
- Transport layer [16 hours]
- UDP: connectionless transport protocols
- principles of reliable data transfer
- principles of congestion control
- TCP: header format, reliability features, congestion-control features.
- Network layer [16 hours]
- forwarding and routing for datagram and virtual-circuit services
- general router architecture: interfaces, switching fabric, queues
- IP: header formats (IPv4 and IPv6), addressing, extensions,
fragmentation, IP forwarding
- Routing algorithms and principles: link-state and distance vector
routing, hierarchical routing
- IP Routing: OSPF, RIP, BGP
- Cross-layer Topics [4 hours]
- basic elements of communication security: block ciphers, modes of
operation, public-key cryptography, RSA.