Sofia Gebreselassie, Kabeynad Getachew, Seneshaw Derresse, Fawzi Jarrah, Imad Husein and Samrat Deoj

1

Sofia Gebreselassie, Kabeynad Getachew, Seneshaw
Derresse, Fawzi Jarrah, Imad Husein and Samrat
Deoja
sxg044100_at_utdallas.edu , kag03300_at_utdallas.edu,
sxd052000_at_utdallas.edu, fmj022000_at_utdallas.edu,
sxd038000_at_utdallas.edu, ixh032000_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 Results
Project Goals

• Goal 1 Design an enterprise network capable of
  remote connection between Local Area Networks and
  voice and data transmission over Frame Relay
  link.
• Goal 2 Design an efficient and cost effective
  digital transmission network capable of reliable
  expansion.
• Goal3 Implement VoIP over frame relay packet
  switching services.

Project Overview

• Design
• The whole network was constructed using the
  equipments already present in the TARGET lab. Our
  design consisted of two Cisco 2851 routers, two
  T1 links, two Shoretel, two D-link hubs and a
  Gigabit Switch. Our design also consisted of a
  dedicated Voice Server which provided the
  backbone of the VoIP services.
• We implemented parallel connection between the
  routers to emulate the DCE (Data Communication)
  and DTE (Data Terminal Equipment) for Permanent
  Virtual Circuit switching feature. The whole
  network was an intricate but crucial web of IP
  addresses and address mapping. The prefix for our
  design was /24 (255.255.255.0) and the IP
  addresses that were chosen for the devices mainly
  imitated the Voice Servers IP address for sake
  of simplicity.
• Technical approach
• Frame relay represents a technology which
  supports the use of a multiplexed interface into
  a packet switching network. A packet network is
  constructed through the use of equipment that
  assembles and disassembles packets, and
  equipments that routes packets and transmission
  facilities used to route packets from the
  origination device to the target device. We
  configured and mapped all the IP addresses and
  tested the network. Voice and data transmission
  over the network was successfully made.
• Organization
• The groups successfully design the network
  without having any major problems. We divided
  the work between two groups. One group worked
  with the connection of the IP Phone and the VOIP
  switch. These groups were responsible for
  configuring the IP phones and also the Shoretel
  voice sever. The other group worked with the
  physical connection and how to make the two
  computers communicate. These include two Cisco
  2851, T1 lines, Shoretel Hardware, and Cisco
  switches. Finally, we can design a network
  enterprise using Frame Relay.

• Result 1
• Designed an enterprise packet switching network
  using Frame Relay successfully.
• Result2
• Successfully configured Cisco Routers, Switches
  and other network hardware.
• Result 3
• Successfully encapsulated of Frame Relay over
  Cisco T1 by configuring the routers with high
  speed serial ports.
• Result 4
• Successfully implemented and tested Shoretel
  Voice over Internet Protocol system using IP
  Phones in both LANs

Project Conclusions/Outcomes

• Modified the physical design of the network for
  maximum efficiency.
• Configured virtual circuits for the
  implementation of packet switching.
• Communication between workstations, servers,
  interfaces and routers on both ends of the
  network were successfully tested.
• Transmission of voice data over the network was
  successfully tested using IP phones over both
  ends of the network.