Peer-to-Peer Information Systems Week 12: Assignment #5 Old Dominion University Department of Computer Science CS 495/595 Fall 2003 Michael L. Nelson <mln@cs.odu.edu> 11/11/03

Assignment #5 Peer discovery using multicasting refer to the email on the class email list for a primer on multicasting consider getting a multicasting demo working before integrating into your peer Multicasting parameters address = 225.5.31.69 port = 1966 TTL = 2

Peer Discovery Upon startup, peers will send a register verb to the multicasting address they will also continually listen on this address the multicasting address is for sending/receiving register verbs only; all other communication is done on the “regular” TCP address/port. The GUI must allow for a “register now” capability as well as defining a timer (in seconds) to periodically resend a register verb use 180 seconds as a default

Grading 1/6 of your total project grade You will be graded on: 10 % of your course grade You will be graded on: in class presentation appearance of the interface nice & creative display of the metadata is encouraged!!! whether or not it works practice before you show up for class! robustness of handling exceptional conditions these are end-user applications… they should behave like them