SYNOPSIS
Project Title:Implementing WAN Network using Packet Switching Technology and Inter -Vlan Routing.
Introduction:Frame Relay is a high performance, performance, low delay product that supplies cost effective LAN, WAN, Internet and Intranet interconnections. It is most suitable for sending variably sized bursts of data that require peak speeds. It is well suited for LAN networking, networking, transferring research, financial, inventory, sales and marketing files, networking email email systems and interactive corporate databases. It uses the telecommunications provider's packet-switching infrastructure to move data. Frame Relay can provide speeds from 56kbps DS0 up to 43Mbps DS3 connections depending on the capability of the service provider's network .
How it works:Frame Relay is a high-speed communications technology that is used throughout the world to connect LAN, Systems Network Architecture (SNA), Internet, voice and other end-user network applications. It sends information over a WAN by dividing data into frames or packets, each of which has an address that the network uses to determine the destination of each frame. To reach the destination these frames travel through a series of switches within the frame relay network. Frame Relay is a statistically multiplexed protocol based on data network standards developed specifically to handle high speed applications with ³bursty´ traffic, such as LANs, host computers and high performance workstations. . The three main components of the Frame Relay service are: 1. Endpoints (PCs, servers, host computers). 2. Access equipment (routers, hosts). 3. Network devices (switches, multiplexers, network routers). Although a Frame Relay Relay connection is effectively a point to point connection, a frame relay network will often be depicted as a network cloud, because it does not provide a single physical\ connection between one endpoint and another. Instead a logical path is defined within the network. This logical path is called a permanent virtual circuit (PVC). Multiple point to point PVC¶s can be meshed to create point to to multimulti point access.
There are two parameters associated with a Frame Relay connection are: Committed Information Rate (CIR) ± the minimum amount of bandwidth that the network ensures will always be available for the specific Permanent Virtual Circuit (PVC). Peak Information Rate (PIR) ± the maximum amount of bandwidth available for this specific PVC. Frame Relay offers a wide range of PVC options to meet end-user requirements. End-users can choose their desired PIR and then can select from one of 4 CIR Bands, ranging from25% to 100%.
Why Multi National Company Use Frame Relay Technology ? Frame relay¶s ability to mix different traffic types eliminates network duplication so that, since its introduction in the early 90s, many enterprises have taken advantage of this versatile network service. Protocols like IP, SNA and even voice traffic can be encapsulated in frame relay. However, the primary driver for migrating from leased-line private networks to frame relay networks is still cost savings. Customers pay for a Committed Information Rate (CIR) which specifies their expected bandwidth requirement, but they are also able to burst over that rate to the full bandwidth of the connection when required. In addition, the frame relay protocol is adapted to reliable contemporary networks. Having little overhead, frame relay is well suited for carrying transaction-processing applications and bursty traffic such as found in LAN. According to Vertical Systems Group, frame relay services continue to be rolled out at a record pace by enterprises for worldwide data connectivity. There were almost 1.2 million subscriber ports at the end of 1999. Frame relay technology provides one of the many ways to put together Virtual Private Networks (VPNs), in addition to building them over the Internet. Offering a cost-effective alternative to leased-line private networks, VPNs provide end-to-end communication paths across public networks. Today, the original ethos remains but the emphasis has shifted towards the requirement for privacy. VPNs must now procure secure paths within the public network. Applying encryption to a frame relay VPN .
A frame relay encryption device offers secure communications on an end-toend basis, establishing a virtual private network within the public frame relay network. Data is encrypted prior to transmission, remains encrypted through th e network, and is decrypted at its final destination. All header and routing information is maintained in the clear for proper routing of frames.
Figure shows Secure Voice/Data over Frame Relay.
Figure shows Data Transfer From different Place Of a Country.
Benefits
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Fast response times with no delay. Reducing hardware requirements ± There is no need for expensive multiple port routers to switch transit traffic as it provides a single access point to the entire network. Simplicity ± requiring only a single access to the network. Telecom Wholesale can change configurations and Committed Information Rates (CIR) quickly and at Cost Reduce to communicate with WAN Connection. Ideal for busty, high speed applications. End-users choose now much bandwidth is needed between LANs. Bandwidth sharing capabilities reduces the cost of the transmission. High levels of reliability as it is a mature technology. Complies with international standards and protocols. Allows to build virtual LANs over whole countries (because of mesh topology and ARPs); simplifies routing. Allows to build private virtual corporate networks; they can be separated from the world at the 2nd level of OSI model - safety. A private network can be connected to the Internet in only one point: safety and economy.
REQUIREMENTS:y y
CISCO Packet Tracer 5 Client Machines with any windows operating system.
Software Requirements:y y y
Any windows Operating system with hyper terminal services. Cisco Boson or Packet Tracer. Router with Internetwork operating system (IOS).
Hardware Requirements:y y y y
Any router like 2500 series,2600 series,2800 series etc. Any Switch like 1900 series,2900 series and 3500 series . Personal Computer (PC). CSU/DSU Devices and other devices.
Protocols:
RIP, IGRP, OSPF, EIGRP and may other Protocol. NAT (Network Address Transmission protocol). IP Addressing (IP V4 and IP V6). IIS (Internet information services).
Conclusions :Today: the biggest factors influencing the ³useful´ life expectancy of Frame Relay as a ³live´ production environment protocol are the massive increases in data transmission speeds that we are currently seeing in native IP -based networking. Much of these performance gains are in fact directly attributable to the improvements in transmission technologies such as fiber-optic cable and high-speed Ethernet over copper wire over longer distances (MANs & WANs). Consumer and small business Internet access technologies such as cable, ADSL, ADSL2+ and regional ISP implementations of Digital Subscr iber Line Access Multiplexer (DSLAM) have jointly made significant forward progress in increasing the bandwidth capabilities that can be offered to consumers and business alike. As a result they are no longer just consumer -level technologies. Larger organi zations now consider them to be viable alternatives particularly when economic factors are taken into consideration.
Project will be beneficial for Multi National Companies to establish their network and can easily transmit t heir data securely.
