Custom Network Protocol on Modified Ring Topology

1
Custom Network Protocol on Modified Ring Topology

• Team Radical
• Leader Dallas Edwards
• Members Sam Sieg
• Sani Musayev
• Changyong Jung

2
Introduction

• Modified ring topology
• Linux based chat system
• Rewrite/Build Custom
• OSI-Model
• Network Monitoring
• tools
• File transfer system

3
Motivation

• CUSTOM RING TOPOLOGY
• -Five machines in a ring topology
• -Every node can act as a
• bridge/router or carry out its own
• functions as a single entity.
• OSI Model
• -Modulization
• -Standard implementation model

4
Custom Ring Topology
C1 4 NICs, 4 connections, a gateway to other
subnets B1, A1, A2, B2 2 NICs, 2 connections
5
Limitations

• Not scalable beyond 25 hosts
• Linux based system only
• No encryption in Presentation layer

6
Method

• Connection to Physical Medium
• - Discovery System (Remote-Hosts)
• Network Stack
• - Discovery of hardware on a local host
• Routing algorithms
• - Vector distance routing algorithms
• - Packet forwarding
• Flow Control
• - Throttling
• - Drop rate analysis
• Dataflow multiplexing
• - Pipelining dataflow into Programs
• - Management of multiple Program data flows

7
Results

• Ability to send/receive Ethernet packets
• Communication among all layers
• Working chat application
• File transfer capability
• Each layer is autonomous and independent

8
Conclusion

• Whole OSI network model is successfully
• re-built as our own
• Each layer works independently and can
  communicate properly
• The Chat application is working in our network
  stack environment
• Above our own network model, the ring topology is
  successfully constructed.
• For the future, advanced network stack
• might be needed to support multi-platform
  environment

9
References

• 1 Douglas E. Comer, Internetworking with
  TCP/IP, pp 95 173, 2000. Prentice Hall
• 2 RFC2003 IP Encapsulation within IP,
• http//portal.acm.org/citation.cfm?idRFC200
  3
• 3 Richard Stevens, Unix Network Programming, pp
  85 110, pp 655 70, pp 703 726, 1998.
  Prentice Hall
• 4 Kay A. Robbins Steven Robbins, Practical
  UNIX Programming, pp333 400, 1996. Prentice
  Hall.
• 5 Andreas Schaufler, RAW Ethernet vs. UDP,
• http//www.landshut.org/bnla01/members/Faustus/fh
  /linux/udp_vs_raw/index.html
• 6 Chae Y. Lee Seok J. Koh, A design of
  minimum cost ring-chain network with dual-homing
  survivability A tabu search approach, Computers
  Operations Research, Volume 24,
• Issue 9, September 1997, pp 883-897
• 7 Brian "Beej" Hall, Beej's Guide to Unix
  Interprocess Communication,
• http//beej.us/guide/ipc/
• 8 Pradeep Padala, NCURSES Programming HOWTO,
• http//tldp.org/HOWTO/NCURSES-Programming-HOWTO/

10
Experiments