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Title: MiaoLing Cho, AbdurRahman Hamadah, David Lee, Angelica Perin,


1
Design of a Virtual Private Network over a SONET
System
Miao-Ling Cho, Abdur-Rahman Hamadah, David Lee,
Angelica Perin, Ahmed Fowad Usmani Juan
Velasco
djl019300_at_utdallas.edu, mxc034100_at_utdallas.edu,
amp021000_at_utdallas.edu, axh043000_at_utdallas.edu,
hola_at_utdallas.edu, afu031000_at_utdallas.edu
Department of Electrical Engineering Erik Jonsson
School of Engineering Computer
Science University of Texas at Dallas Richardson,
Texas 75083-0688, U.S.A.
Project Goals
Project Results
  • Goal 1
  • Design an enterprise network capable of data
    transmission over fiber optic link
  • Goal 2
  • Research configuration syntax to allow multi-site
    VPN across the network
  • Goal 3
  • Configure routers to enable MPLS VPN
  • Applied logical addressing to network
  • Configured provider edge (PE) routers with MPLS
    VPN to enable tag switching for VPN customers.
  • Configured customer edge (CE) routers with OSPF
    to advertise customer network to the provider
    (ISP) network.
  • Implemented VPN over SONET system
  • Troubleshoot and assess errors in configuration
    syntax

Project Overview
Routing Protocols
Virtual Private Network
  • Design
  • The network was implemented using the hardware
    available in the TARGET lab. The hardware
    consisted of two CISCO 12000 routers , two CISCO
    6509 switches and three Cisco OC-48 (3-Node Ring).
  • IP addressing was /24 consisting of 3 distinct
    networks.
  • MPLS VPN was configured to route VPN traffic
    through the network
  • Technical Approach
  • We configured all interfaces to adhere to our
    logical addressing schema. Applied OSPF and BGP
    as primary routing protocols to route traffic end
    to end. Using MPLS we created a virtual routing
    and forwarding instance (VRF) to allocate VPN
    customers.
  • Organization
  • Our group worked as a whole to configure the
    network. Met on a weekly basis to test
    configuration and program equipment. In
    addition, the group worked together to
    troubleshoot the network.

Project Conclusions/Outcomes
  • Modified original network configuration to
    implement MPLS VPN rather than IPSEC due to IOS
    version discrepancies.
  • Could not complete final network communication
    between Gigabit Ethernet to POS interface on PE
    routers due to time constraints.
  • Tested successful communication between CE PE.
  • Tested successful communication between PE PE.
  • Efficient group communication and distribution of
    work
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