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Campus Network Security and Management International Journal of Emerging Trends & Technology in Computer Science (IJETTCS) Web Site: www.ijettcs.org Email: [email protected] Volume 3, Issue 6, November-December 2014 ISSN 2278-6856 CAMPUS NETWORK SECURITY AND MANAGEMENT 1S. Sudharsan, 2M. Naga Srinivas, 3G. Sai Shabareesh, P.Kiran Rao 1 Department of Computer science 2Department of Computer science 3Department of Computer science ABSTRACT organizations, and does not need to “span large This project is totally dedicated to the Network Engineer for geographical distances.” new and smart learning of the Network Structure. In this MAN (Metropolitan Area Network):- A MAN is concept it is possible for the networker to check the Network defined as a network that spans several LAN’s across a Structure of a company spread in the big campus area. The city-wide geographic area. The term “MAN” is less incoming & the outgoing traffic can be maintained along with prevalent than either LAN or WAN. Generally a network some security concepts as well. In this logic we use the is purely based on what TOPOLOGY it is using, generally multiple Routing Protocols in different areas of the company. a computer network topology is the way various The practical shows us the proper movement of the packet components of a network (like nodes, links, peripherals, from one part of the company to the other part of the etc) are arranged. Network topologies define the layout, company. The project comprises of the different Departments of a Campus spread in different buildings. Multiple Routing virtual shape or structure of network, not only physically protocols have been used in different branches of and all the but also logically. The way in which different systems and departments can communicate with other different nodes are connected and communicate with each other is departments through the redistribution among different determined by topology of the network. Topology can be Routing Protocols. It has a DHCP server for assigning the IP physical or logical. Physical Topology is the physical Addresses to the Hosts in the building as well as a DHCP layout of nodes, workstations and cables in the network; server has been used in the other Buildings as well. The while logical topology is the way information flows Internet Service Provider has been used for Communication between different components. In general, physical of the Buildings of Campus with the Data Centre & Internet topology relates to a core network whereas logical through ISP, using the Frame Relay Switching Technology topology relates to basic network. available for Wide Area Network. Routing Protocols EIGRP Types of Physical Network Topologies along with the Synchronous Number, Static Routing & its concepts including the Default Routing as well has been Bus Topology applied. The different Routing Protocols are running and Star Topology which has been synchronized to work with Frame Relay Ring Topology Switching Technology. Mesh Topology 1.INTRODUCTION Tree Topology A network is defined as devices connected together to Hybrid Topology share information and services. The types of data/services Factors to be taken into consideration while choosing a that can be shared on a network is endless - documents, Network topology music, email, websites, databases, printers, faxes, Scale of your project (in terms of number of telephony, videoconferencing, etc. components to be connected). Networks are generally broken down into two types: Amount of traffic expected on the network. LANs (Local Area Networks):- a high-speed network Budget allotted for the network i.e. amount of money that covers a relatively small geographic area, usually you are willing to invest. contained within a single building or campus. A LAN is Required response time usually under the administrative control of a single What is Campus Network Security and Management? entity/organization. In this concept for the networker has to check the Network WANs (Wide Area Networks):-The book definition of a Structure of a company spread in the campus area. The WAN is a network that spans large geographical outgoing & the incoming of the traffic can be maintained locations, usually to interconnect multiple LANs. A more along with the some security concepts. Here we use the practical definition describes a WAN as a network that Routing Protocols in different areas of the campus. The traverses a public network or commercial carrier, using proper movement of the packet from one part of the one of several WAN technologies. Thus, a WAN can be company to the other part of the company is the main under the administrative control of several entities or criteria. This project comprises of the various departments of a Campus spread in different buildings. Multiple Volume 3, Issue 6, November-December 2014 Page 52 International Journal of Emerging Trends & Technology in Computer Science (IJETTCS) Web Site: www.ijettcs.org Email: [email protected] Volume 3, Issue 6, November-December 2014 ISSN 2278-6856 Routing protocols are been used in different branches of Security is very low because all the computers receive and all of them can communicate with other different the sent signal from the source. buildings through the redistribution between different These drawbacks do not help to maintain effective Routing Protocols. It comprises a DHCP server to assign Campus Network Security and Management. the IP Addresses among the Hosts in the building as well Proposed Campus Network Security and Management as between the DHCP server that has been used in the The proposed Campus Network Security and Management other Buildings. The Internet Service Provider [ISP] has is based on STAR topology. Generally a STAR network is been used to Communicate between the Buildings of a local area network (LAN) in which all nodes Campus with the Data Centre & Internet through ISP, (workstations or other devices) are directly connected to a using the Frame Relay Switching Technology available to common central computer. Every workstation is indirectly Wide Area Network. Routing Protocols EIGRP, connected to every other through the central computer. In Synchronous Number, Static Routing & its various some star networks, the central computer can also operate concepts which include the Default Routing have been as a workstation. The illustration shows a star network applied. This comprises the entire view of the Campus with five workstations (or six, if the central computer acts Network Management and Security. as a workstation). Each workstation is shown as a sphere, Existing Campus Network Security and Management the central computer is shown as a larger sphere, and Present Campus Network Security and Management is connections are shown as straight lines. The connections entirely based on Bus topology. Generally a bus network is can be wired or wireless links. The star network topology an arrangement with a local area network (LAN) in which works well when workstations are at scattered points. It is each node (workstation or other device) is connected to a easy to add or remove workstations. In a star network, a main cable or link called the bus. The illustration shows a cable failure will isolate the workstation that it links to the bus network with five nodes. Each node is shown as a central computer, but only that workstation will be sphere, the bus appears as a heavy horizontal line, and isolated. All the other workstations will continue to connections to the bus appear as vertical lines. A bus function normally, except that they will not be able to network is simple and reliable. If one node fails to operate, communicate with the isolated workstation. If any all the rest can still communicate with each other. For a workstation goes down, none of the other workstations major disruption to take place, the bus itself must be will be affected. broken somewhere. Bus networks are easy to expand. It has many advantages like: Additional nodes can be added anywhere along the bus. As compared to Bus topology it gives far much better There are several limitations to the bus network topology. performance, signals don’t necessarily get transmitted The length of the bus is limited by cable loss. A bus to all the workstations. A sent signal reaches the network may not work well if the nodes are located at intended destination after passing through no more scattered points that do not lie near a common line. than 3-4 devices and 2-3 links. Performance of the Though it is easy to set-up and extend bus network, cable network is dependent on the capacity of central hub. length required for this topology is the least compared to Easy to connect new nodes or devices. In star other networks, costs very less and good for LAN. It has topology new nodes can be added easily without some Drawbacks like: affecting rest of the network. Similarly components Entire network shuts down if there is a break in the can also be removed easily. main cable. Centralized management. It helps in monitoring the Terminators are required at both ends of the backbone network. cable. Failure of one node or link doesn’t affect the rest of Difficult to identify the problem if the entire network network. At the same time it is easy to detect the shuts down. failure and troubleshoot it. Not meant to be used as a stand-alone solution in a This helps to maintain effective Campus Network Security large building. and Management. There is a limit on central cable length and number of The goal of any networking project is to enable you to nodes that can be connected. do the following: Dependency on central cable in this topology has its Build implementations of the Internet protocols disadvantages. If the main cable (i.e. bus ) encounters Generalize this knowledge to other networking some problem, whole network breaks down.
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