COLLEGE OF BUSINESS ADMINISTRATION MISY3312: Introduction to Telecommunication Section 202 2nd Phase  Done by: Miznah A. AlMansour ID#200900258 Submitted to: Dr. Valentina Korzhofa

Outline 1. Introduction 1.1 History of Zamil Steel   1. Introduction 1.1 History of Zamil Steel 2. Problem Statement 2.1 Problem statement regarding business 2.2 Problem statement regarding network 3. Network transmission media 3.1 Connection methods 3.2 Wired technologies 3.3 Wireless technologies 4. Type of networks based on physical scope 4.1 Virtual Private Network (VPN) 4.2 Local Area Network (LAN) 4.3 Wide Area Network (WAN) 4.5 Internet 5. Network classification 5.1 Network Architecture 5.2 Network topology

Introduction Zamil Steel was established in 1977 in Saudi Arabia Zamil Steel supplied structural steel for many industries, including petrochemical, cement plants, gas and oil, steel mills, and high-rise building Zamil Steel supplied more than 60,000 buildings to over 90 counties worldwide Zamil Steel has grown from a locally oriented industry into a global leader in expanding field of steel in Asia, Africa and Europe Zamil Steel main factories are located in Dammam, Saudi Arabia. Along with additional factories located in Egypt, India, Ras AlKhaima (UAE), and Vietnam

Problem Statement Problem Statement Regarding Business   Zamil Steel is always seeking for new opportunities, and as a part of the company’s development, Zamil Steel is more likely to operate in new facilities all around the world. For example, the next place that Zamil Steel is willing to open a new factory in is Brazil. In order for Zamil Steel to maintain its success, it should consider a good network of communications technology and advanced computers.

Problem Statement (cont’d) Problem Statement Regarding Network To manage network globally, Zamil Steel should keep into consideration how to connect their offices globally, make applications run faster, and most importantly secure the applications and the network. Challenges: technical knowledge country-by-country service requirements network design and planning network management interoperability network management operations monitoring the network

Network Transmission Media Connection Methods Connection methods can be classified according to hardware and software technologies used to connect the individuals’ devices in the network, such as optical fibers, wireless, wired, and point-to-point laser. Zamil Steel uses both wired and wireless connection methods.

Network Transmission Media (cont’d) Wired Technologies Twisted Pair Optical Fiber Twisted pair is used for client connections, where it follows category 5/6 cable standard The purpose of using it is for fast Ethernet and Gigabit Ethernet connection The maximum allowed length of a Cat 6 cable is 100 meters Zamil Steel uses unshielded twisted pair (UTP)

Network Transmission Media (cont’d) Wired Technologies Twisted Pair Optical Fiber It is used for switch uplinks and server interfaces Multi-mode Fiber (MMF) it is used for short distance, less than 500 meters Single-mode Fiber (SMF) it is used for links longer than 500 meters The light propagates through the fiber with little attenuation compared to electrical cables

Network Transmission Media (cont’d) Wireless Technologies local area network (LAN): it is used to connect PCs in close geographical proximity, and it is has higher speed than WAN. All devices can share files, printers, or programs without being aware of the actual physical location of resources In Zamil Steel, this service is provided by Aruba Networks, where they ensure that users are always within reach of business-critical information

Type of Networks Based on Physical Scope 1. Virtual Private Network (VPN) It is a network that uses public telecommunication infrastructure, such as the Internet, in order to provide remote offices and access to traveling users to the central organizational network The main benefit of VPN is the reduction in costs; because it does not need physical lines to connect remote users to the Internet In Zamil Steel, the methodologies used are IPsec and SSL VPNs

Type of Networks Based on Physical Scope (cont’d) 2. Local Area Network (LAN) LAN is a network used to interconnect computers in a building on one major site People working in LAN get more capabilities in data processing, information exchange, and work processing There are several advantages of LAN, such as the high reliability of network, adding new devices to the networks is easy, high rate of data transmission is possible, and much more In Zamil Steel, LAN used for Client communication in the campus network with high bandwidth

Type of Networks Based on Physical Scope (cont’d) 3. Wide Area Network (WAN) WAN is a network link that extends beyond the LAN to other networks, it is basically a telecommunication network that covers a broad area In Zamil Steel, it is used for interconnecting Area Offices across various regions. Client communications are accelerated using WAN optimization devices

Type of Networks Based on Physical Scope (cont’d) 4. Internet It is widely known that the Internet transmits a massive range of information resources and services In Zamil Steel, Internet is used for VPN and FTP and Mail transfer

Network classification Network Architecture It is the layout of the network, including the hardware, software, communication protocols and mode of transmission, and connectivity In Zamil Steel the utilized network is client-server model. It is a computing model that functions as a distributed application, which divides tasks between providers of a service, which called server, and service requesters, called client The greatest advantage of client/server network is that it allows multiple clients connecting to a single server

Network classification (cont’d) Network Topology Topology can be understood and defined according to the shape of a network Zamil Steel uses the star network topology That means each network host is connected to a central hub All traffic that crosses the network passes through the central hub, and that hub acts as a signal repeater One benefit of the star network is that it is easy to manage, and it is easier to expand compared to bus or ring topologies

Thank you for listening

References Cisco. (2012). Products & Services. Retrieved 2012, from Cisco Systems, Inc.: http://www.cisco.com/en/US/products/index.html   Sabbagh, Z. (2012, March 15). Network of Zamil Steel . (M. AlMansour, Interviewer) Zamil Steel. (2012). About Zamil Steel. Retrieved 2012, from Zamil Steel : http://www.zamilsteel.org/about-zamil-steel/ Zamil Steel. (2012). Steel Buildings from Zamil Steel. Retrieved 2012, from Zamil Steel: http://www.zamilsteel.org/