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Networking Basics - Sales Account Manager Training


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Training for Sales Account Mangers on Networking Basics.

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Networking Basics - Sales Account Manager Training

  1. 1. Networking BasicsArjun Vasanthakumar
  2. 2. Agenda• Network Definition• Types of Network• Network Terms• OSI Model• Network Components• Enterprise Network Architecture
  3. 3. Network Definition
  4. 4. What is Network?• A network, is a collection of computers and devices interconnected to facilitate communications among users and allows users to share resources.
  5. 5. Types of Network
  6. 6. Local Area Network• Connects computers and devices in a limited geographical area
  7. 7. Wide Area Network• LANs that spans over a broad area (regional, global)
  8. 8. Virtual Private Network• Connects multiple LANs securely over WAN
  9. 9. Network Terms
  10. 10. Common Network Terms (1)• MAC Address - Physical Address of a Device ▫ E.g. “ 08:00:69:02:01:FC ”• IP Address – Logical Address of a Device ▫ e.g. “ ”• Protocol – Set of rules that govern a communication ▫ e.g. TCP, UDP• Subnet ▫ Block of IP Addresses
  11. 11. Common Network Terms (2)• Fast Ethernet ▫ 10/100 Mbits/sec• Gigabit Ethernet ▫ 10/100/1000 Mbits/sec• Power Over Ethernet ▫ Feature that supports a device to pass power along with data on Ethernet Cabling• VLAN ▫ a VLAN is a collection of nodes that are virtually grouped together.
  12. 12. Open Systems Interconnection(OSI model)
  13. 13. OSI Model• Open Systems Interconnection ( OSI ) is a standard reference model for communication between two end users in a network. The model is used in developing products and understanding networks.
  14. 14. OSI model - Layers Application • Network Process to Application (Email, Internet Explorer) Presentation • Data Format, Ensure Data is readable (JPEG, GIF) Session • Establish, Maintain & Disconnect (Host to Host Chat Session) Transport • End to End Connection, Reliability (TCP, UDP) Network • Network Address, Best Path (IP, Router) Data Link • Access to Media (MAC, Switches, Hub) Physical • Binary Transmission (wires, voltages)
  15. 15. Network Components
  16. 16. Passive Components Application • UTP Cable • Patch Panel Presentation Session Transport • SFP Module • Fibre Cable Network Data Link Physical
  17. 17. Network Switch Application ▫ Devices that links nodes in a LAN ▫ Layer 2 Device Presentation ▫ Works on MAC Address Session Transport Network Data Link Cisco 2960 Switch Physical
  18. 18. Router Application ▫ Responsible for Routing, Path selection Presentation ▫ Layer 3 Device Session ▫ Works on IP Address Transport Network Cisco 1941 Router Data Link Linksys Router Physical
  19. 19. Multi-Layer Switch Application ▫ Device that switches on OSI layer 2 like an ordinary network switch and provides Presentation extra functions on higher OSI layers. ▫ Inter –VLAN Routing Session Transport Network Data Link Cisco 3560, Cisco 4500 & Cisco 6500 Physical
  20. 20. Wireless Access Point Application ▫ allows devices to connect to a wired network with out the need of physical Presentation cable Session Transport Network Data Link Cisco Aironet 1140, 1260, 1500 Series Physical
  21. 21. Firewall Application ▫ Security Device ▫ Offers protection between Presentation Zones Session ▫ Todays Firewall offers Network to Application Level Protection Transport Network FortiGate UTM Data Link Physical Cisco ASA
  22. 22. Enterprise Network Architecture
  23. 23. Enterprise Network Architecture
  24. 24. Access SwitchConnects End Users, IP Phones tothe LAN .Enterprise Network Architecture
  25. 25. Core SwitchTies Access switches together. Normallyservers and storage devices are connectedto this. Enterprise Network Architecture
  26. 26. Access SwitchIn Small Offices Access Switch tends totake the role of Core Switch. Enterprise Network Architecture
  27. 27. Network StorageStores Data of HeterogeneousClients (Servers, PC’s) Enterprise Network Architecture
  28. 28. RouterAllows to terminate WAN Links.E.g. ADSL, MPLS, Lease Line. Enterprise Network Architecture
  29. 29. Security ApplianceSecures the Enterprise frominternet attacks Enterprise Network Architecture
  30. 30. Wireless Access PointProvides Wireless Networkaccess to the users. Enterprise Network Architecture
  31. 31. Unified Communication SystemResponsible for providing IP Telephony,Video Conferencing Services. Enterprise Network Architecture
  32. 32. Site to Site VPN allows branch Remote Access VPN allowsoffices to share and access Remote Users to securely accesscorporate resources. corporate resources. Enterprise Network Architecture
  33. 33. 3 – Tier Architecture
  34. 34. 2 – Tier Architecture (Collapsed Core)
  35. 35. Thank You