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General Information

Time	:	TuTh 11:00am - 12:20pm
Location	:	OHE 120
Instructor	:	Bill Cheng, Office Hours: TuTh 12:45pm - 1:45pm in SAL 228, E-mail: <bill.cheng@usc.edu> or <william@bourbon.usc.edu> (Please do not* send HTML e-mails. They will not be read.)*
TA	:	Leslie Cheung, E-mail: <lccheung@usc.edu>, Office Hours: Tue, 3:00pm - 5:00pm in SAL 211
Grader	:	(none)
Midterm Exam	:	in class, Tue, 10/24/2006 (firm)
Final Exam	:	8am-10am, Tue, 12/12/2006, in VKC 258 (firm) (VKC is located in section 5E of the campus map)
Msg Archives	:	messages from Bill, messages from Leslie

Class Resources

Description	:	textbooks, topics covered, grading policies, additional resources, etc.
Papers	:	required and recommanded technical papers.
Lectures	:	slides from lectures in HTML, PostScript, and PDF formats.
Homeworks	:	(2-4 homeworks will be assigned.)
Projects	:	(please also see important information about the class projects below.)

News

(in reversed chronological order)

11/29/2006: The final exam will be held in VKC 258. It is closed book, closed notes, and closed everything (and no "cheat sheet"). Also, no calculators, cell phones, or any electronic gadgets are allowed. Please bring a photo ID. Your ID will be collected at the beginning of the exam and will be returned to you when you turn in your exam. There will be assigned seating.
The final exam will cover everything after the midterm exam (starting at slide 5 of lecture 17) to the last slide of the last lecture on 11/30/2006. For the DEC-bit paper [Ramakrishnan90a], you will only be responsible for the queue management (DEC-bit) part of it.
Here is a quick summary of the topics (not all topics covered are listed):
- Queue Management
  - DEC-bit [Ramakrishnan90a]
    - queue length
    - fairness
    - power
    - efficiency
  - RED [Floyd93a]
    - random drop
    - threasholds
  - TCP throughput [Padhye98a]
    - bandwidth relationship with loss probabilities, segment size, and RTT
    - triple-dupack period
    - timeouts and limited advertised receiver window size
  - TCP friendliness [Floyd99b]
    - bandwidth equation
    - UDP
- Peer-to-peer/Distributed Hash Table
  - Freenet [Clarke02a]
    - unstructured DHT system
    - insertion
    - search
  - Chord [Stoica01a]
    - structured DHT system
    - finger table
    - insertion
    - search
  - BitTorent [Yang04a]
    - piece selection
    - fairness
- Integrated & Differentiated Services
  - integrated and differentiated services design issues [Shenker95a]
    - efficacy
  - integrated services [Clark92a]
    - guaranteed, predicted, and best effort services
    - token buckets
    - FIFO+
  - differentiated services [Clark98a]
    - RIO (Red with In or Out)
  - differentiated services [Nichols99a]
    - premium, assured, and best effort services
    - two-bit diff-serv
    - border router profile meters
- Measurements
  - network performance measurements [Paxson99b]
    - pathologies (reordering, duplication, corruption)
    - bandwidth (bottleneck BW vs. available BW)
    - loss (predictive?)
    - packet bunch (problems with packet pair)
- Wireless & Mobile
  - mobile IP [Johnson96b]
  - media access for wireless LAN [Bharghavan94a]
    - hidden terminal
    - exposed terminal
    - back-off
  - snoop [Balakrishnan95b]
    - operation of snoop
  - dynamic source routing in ad hoc wireless networks [Johnson96c]
    - DSR route discovery and route maintenance
  - sensor network [Intanagonwiwat00a]
    - directed diffusion
    - data-centric communication
- Multicast
  - IP multicast [Deering88b]
    - composed of a service model, IGMP, and multicast routing protocols
    - MBone and tunnels
  - DVMRP, MOSPF
    - flood and prune in DVMRP
    - receivers floods in MOSPF
  - PIM [Deering96a]
    - shared tree vs. source tree
    - sparse mode vs. dense mode
    - core/center/rendezvous point
  - Single-source Multicast [Holbrook99a]
  - Scalable Reliable Multicast [Floyd97c]
    - sender reliable vs. receiver reliable error detection
    - NACK implosion
    - retransmission
- Class project
  - final project part (2)

10/17/2006: The midterm exam will be held in OHE 120. It is closed book, closed notes, and closed everything (and no "cheat sheet"). Also, no calculators, cell phones, or any electronic gadgets are allowed. Please bring a photo ID. Your ID will be collected at the beginning of the exam and will be returned to you when you turn in your exam. There will be assigned seating.
The midterm exam will cover everything from the beginning of the semester till the end of fair queueing (last slide is slide 4 of lecture on 10/17/2006). I will not ask anything about ns and nam. And you will only be responsible for part of [Ramakrishnan90a] which was covered under TCP congestion control (fairness and efficiency) and not under queue management (DEC-bit).
Here is a quick summary of the topics (not all topics covered are listed):
- Networking basics
  - CIDR
  - NAT
- Architecture
  - Internet design issues [Clark88a]
  - End-to-end argument [Saltzer81a]
  - IP (protocol hourglass) [Deering98a]
- Routing
  - Landmark routing [Tsuchiya88a]
  - Unicast routing
    - distance vector
    - link state
  - Interdomain routing (BGP)
    - BGP messages
    - BGP attributes and policy routing
    - EBGP vs IBGP
    - multihoming
  - Delayed convergence [Labovitz00a]
- TCP
  - basic TCP mechanisms
    - SYN & 3WH
    - FIN
    - RTT & RTO
  - congestion control (includes part of [Ramakrishnan90a])
  - fairness
  - efficiency
  - stability
  - congestion control mechanisms [Jacobson88a]
    - slow start
    - congestion avoidance
    - fast retransmit
  - TCP Tahoe, Reno, New Reno, TCP SACK [Fall96a]
    - fast recovery
    - New Reno partial ACK
    - TCP SACK
- Queue management
  - Fair queueing & weighted fair queueing [Demers89a]
    - arrival time
    - start time
    - finish time
- Class project
  - final project part (1)

8/31/2006: Due to a bug in the spec, the deadline for warmup project #1 has been extended by one day.

8/7/2006: Registering with the class mailinglist is required for this class because you must get your port assignments. If you have not done so, please visit the mailinglist page. (You do not have to be registered for the course to register with the class mailinglist.)

8/7/2006: There is another section of CSCI 551 (also at TTh 11am-12:20pm). It is offered by Prof. Ramesh Govindan. Please make sure you attend the section for which you are registered.

8/7/2006: Watch this area for important announcements.

Prerequisites

CSci402: Operating Systems.
EE 450: Introduction to Computer Networks.
Qualify for a D-clearance. Please read the Placement Exam Instructions carefully and make sure that you have filled out the Pre-registration Form. (Please note that the instructor will not sign anything that says that you do not have to take the Placement Exam.)

Important Information about the Class Projects

The class projects will take more than 5,000 lines of C/C++ code to be developed on a UNIX environment. No other programming language will be accepted and your program must compile and run with a Makefile on nunki.usc.edu. (Sorry, no Java.) You must be familiar with the UNIX development environment (vi/pico/emacs, cc/gcc or g++/CC, make, etc.)

If a student signs up late for this class, he/she is still required to turn all projects and homeworks on time or he/she will receive a score of 0 for these assignments. No exceptions!