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Data Communication MAnagement

Data Communication MAnagement. Buninyong Giftware Prepared By Md. Ifthakharul Alam Id # 30088818. Ballarat based company Imports and wholesales giftware and gadgets Few sales representative, assistant manager, manager and a secretary Two stored building. Buninyong Giftware.

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Data Communication MAnagement

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  1. Data Communication MAnagement Buninyong Giftware Prepared By Md. IfthakharulAlam Id # 30088818

  2. Ballarat based company Imports and wholesales giftware and gadgets Few sales representative, assistant manager, manager and a secretary Two stored building Buninyong Giftware

  3. Objective • Establish a Website • Remote Access • Place order online • Access the database • Maintain a secured server

  4. Protocols

  5. Application Layer • SMTP, POP, FTP and HTTP • SMTP installed on each desktop • POP installed on each user computer • UA will use SMTP to send mail local mail server • MTA will use SMTP to send mail to remote mail server • Receiving UA will use POP and IMAP to read those mails • Will use MIME as well

  6. Transport Layer • TCP and UDP • TCP for IMAP, HTTP, POP, FTP • UDP for DNS

  7. Network Layer • ICMP, IGMP, ARP and RARP • Class C Address Block • The OSPF routing protocol

  8. Datalink Layer • Hop to hop for framing • Ethernet Cable from • CRC • CSMA/CD

  9. Physical Layer • Twisted Pair Cable • Manchester Encoding • Peer to multipoint

  10. Network Diagram

  11. “J u s t d a t a” “J u s t d a t a” Encapsulation Hdr Original data Application layer Hdr “Just data” Transport Layer Hdr Network Layer Data Link Layer Hdr

  12. Peer to peer communication Peer to peer Header has done its work! Sender Receiver Application layer Transport Layer Network Layer Data Link Layer Physical layer Along the wire

  13. Network Diagram • Logical and Star Topology • Installed LAN and each floor has a full duplex switched 10BASE-T network which supports 10 Mbps data rate with maximum length of 100 meters • VLAN1 and VLAN2 • Point to point WAN • T-3 Line carries 44.736 Mbps

  14. Security • Application layer has security for e-mail • Transport layer has SSL • Packet filter firewall • Proxy firewall

  15. Hardware Requirement

  16. Software Requirement

  17. Conclusion • E-commerce site established • Remote access to the sales representative • Secured server and database • Happy customer, retailers and sales representative

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