1. W4140 Network Laboratory Lecture 13 Dec 11 - Fall 2006 Shlomo Hershkop Columbia University

2. Announcements  Short class today  Wrapping up

3. Overview  Course summary  Exam overview  Project report

4. Overview  The course is designed to give you practical network skills for todays evolving net system  I believe the skills learned in the weekly labs: Practical Useful Real world Payoff:  Can now get CISCO certified if you choose  Can ask for more $$$$

5. We covered  Technologies and protocols of the Internet using equipment currently available to large ISPs such as CISCO routers and rack end-systems.  We engineered local and wide-area networks  Internet Protocol (IP)  Address Resolution Protocol (ARP)  Internet Control Message Protocol (ICMP)  User Datagram Protocol (UDP)  Transmission Control Protocol (TCP)  Domain Name System (DNS)  routing protocols (RIP, OSPF, BGP)  network management protocols (SNMP)  application-level protocols (FTP, TELNET, SMTP).

6. Disclaimer  I know and realize you have put in a lot of work into this course  YOUR GRADE WILL REFLECT THIS  BUT….. Please look over your grades and speak to the TA is points were taken off by mistake Speak to ME (preferably today) if you feel you deserve to get a better grade than just what is reflected in the marks on the lab work You will have a chance to redeem points lost by being creative on the final exam

7. Final  We will be having a short written final for the lab course covering topics familiar from the labs.  Straightforward exam making sure you understand what we have covered Will be enough if you look over your lab notes  Schedule for next week before the final demos due to conflicts today

8. Example  You are being paid as a consultant to help fix a network problem Description of the network topology Description of requirements Description of wishful thinking Description of problem  Ideas on why it is happening  How you would debug the problem  Some ideas on solving it

9. Phase II  We will be having a pizza party for the phase II presentations next Monday Have lunch and every group will give a 15 minute overview of what they did Will work with you on wrapping up your report and help you submit it to a conference proceedings if you want to get published

10. Phase II  Would also like to archive the work, so please while generating the work capture traffic (tcpdump/ethereal) and will post them next to your reports  Try to use visualization to show a point of your work, as opposed to huge log and some random point in the log Picture still worth 1000 words

11. Phase II Presentation  Overview of project Who What why  Overview of background info and tools used  Experiments to show idea  Results  Explanation of the results  Where this work can be taken

12. Written report  Should be pdf  Outline a few paragraph on what the goal and results of project  Background info  Tools  Experiments  Results  Results explanation  Future work  References and code/tools/links etc

13. Note  If you have filled out the course evaluation: THANK YOU  Else, please do so today Thanks in advance

14. Course style  I have designed the couse to be very very very open ended Because real world network troubleshooting  80 % time simple configuration or protocol problem  90 % can spot it looking the packets  10 % <<< big bucks pay here

15.  Hope you enjoyed this semester with me  Please let me know if you would like to help out on a research project over winter break or next semester Good experience, but only if you have academic time for it  Any Questions ??