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Network Tier Architecture


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Best slides on network tier terminology & simple concepts of network tier architecture.

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Network Tier Architecture

  1. 1. I II:3'i»xInr| < Tier l§‘. :i“L: I‘ii'ii3I: "iLir:3 ' °-BY TALSKNIYA -
  2. 2. Network Tier Architecture Tier: A tier is a distinct part of hardware/ software. : ?f; '~ POP #3 ' Tier 1 Networks . ;_"‘"ff* (Tier 2 Networks 93.. .; ;¢. _ E‘ “q ‘ X «v'/1 ' c 3 €’—. ~‘; ‘' 63.34,? - POP #2 5:? POP #1 IXP a Tier 2 ISP ‘ E3.-_‘. «’ ST LL -I» 3 N M , k _Tier 3 Network (mLffir_h0n$ed? Sp) (single homed ISP) [IT ~. .4, -J-‘— I I X Internet users (business, consumers, etc) ! R Talsaniya
  3. 3. ° Single Tier Systems 5: A single computer that contains a database and a front-end (GUI) to access the database is known as Single Tier System. Generally, this type of system is used in small businesses. <-: There is one computer which stores all of the company's data on a single database. €-: The interface used to interact with the database may be part of the database or another program which ties into the database itself. VR Talsaniya
  4. 4. © © Two Tier Systems El CI El A two-tier system consists of a client and a server. The database is stored on the server, and the interface used to access the database is installed on the client. The user system interface is usually located in the user's desktop environment and the database management services are usually in a server that is more powerful machine that services many clients. Processing management is split between the user system interface environment and the database management server environment, the database management server provides stored procedures and triggers. Two—tier architectures were developed in the 19805 from the file server software architecture design. . IR Talsaniya
  5. 5. 2-Tire Model User interface logic Business logic Database logic - ‘ I ' Connection with high bandwidth VR Talsaniya
  6. 6. © © © Three Tier Systems *3: The three-tier architecture emerged in 1990s to overcome the limitations of the two-tier architecture. *9 The three-tier (middle tier server) resides between the user interface (client) and the data management (server) components. *9 This middle tier provides process management where business logic and rules are executed and can accommodate hundreds of users by providing functions such as queuing, application execution, and database staging. *3 The three tier architecture is used when an effective distributed client/ server design is needed that provides (when compared to the two-tier) increased performance, flexibility, maintainability, reusability and scalability, while holding the complexity of distributed processing from the user. V3 Talsaniya
  7. 7. Business logic Database logic -* . _L—, __¢ 7 _. User interface User interface ' Connection with high bandwidth 3-tier and n-tier client-server database designs try to solve these problems by simply transferring the application logic from the client back to the server.
  8. 8. Multi-tier Architecture: Multi-tier architecture (n-tier architecture) is a client-server architecture in which an application is executed by more than one distinct software agent. For example, an application that uses middleware to service data requests between a user and a database employs multi-tier architecture. The most widespread use of "mu| ti-tier architecture" refers to three-tier architecture The client program has only User Interface (Ul) code that talks, via a network, to the "middle tier" on which the business and database logic sits. In turn the middle tier talks, via a network, to the database. In practice the middle tier can be placed, if necessary, on the same machine as the database. VR Tasaniya
  9. 9. User interface I V User interface I logic (GUI) jiGiX¥lJ& logic (GUI) V n. ..4-. ..l. ... ..-. -. ] C Business logic Database logic
  10. 10. Two Tier Architecture (Web and App Tier / Database Tier Three Tier Architecture: App Tier ‘Database Tier > A Tier 2 Network is an Internet service provider who engages in the practice of peering with other networks, but who still purchases IP transit to reach some portion of the Internet. > Tier 2 providers are the most common providers on the Internet as it is much easier to purchase transit from a Tier 1 network than it is to peer with them and then attemptto push into becoming a Tier 1 carrier. > The term Tier 3 is sometimes also used to describe networks who solely purchase IP transit from other networks (typically Tier 2 networks) to reach the Internet. VR Talsaniya
  11. 11. ThankYou; For more visit wvvw. v1talsaniya. l1ost