Networking Basics - Sales Account Manager Training
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The document provides an overview of networking basics, including definitions of common network types and terms. It describes what a network is and types such as local area networks (LANs), wide area networks (WANs), and virtual private networks (VPNs). Common network terms like MAC addresses, IP addresses, protocols, and subnets are defined. The OSI model and its seven layers are introduced. Various network components are described, including switches, routers, firewalls, wireless access points, and more. Finally, common enterprise network architectures like access/core switches, routers, firewalls, and wireless access points are depicted.
Networking Basics - Sales Account Manager Training
- 2. Agenda • Network Definition • Types of Network • Network Terms • OSI Model • Network Components • Enterprise Network Architecture
- 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.
- 6. Local Area Network • Connects computers and devices in a limited geographical area
- 7. Wide Area Network • LANs that spans over a broad area (regional, global)
- 8. Virtual Private Network • Connects multiple LANs securely over WAN
- 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. “ 192.168.1.254 ” • Protocol – Set of rules that govern a communication ▫ e.g. TCP, UDP • Subnet ▫ Block of IP Addresses
- 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. Open Systems Interconnection (OSI model)
- 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. 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)
- 16. Passive Components Application • UTP Cable • Patch Panel Presentation Session Transport • SFP Module • Fibre Cable Network Data Link Physical
- 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. 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. 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. 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. Firewall Application ▫ Security Device ▫ Offers protection between Presentation Zones Session ▫ Today's Firewall offers Network to Application Level Protection Transport Network FortiGate UTM Data Link Physical Cisco ASA
- 23. Enterprise Network Architecture
- 24. Access Switch Connects End Users, IP Phones to the LAN . Enterprise Network Architecture
- 25. Core Switch Ties Access switches together. Normally servers and storage devices are connected to this. Enterprise Network Architecture
- 26. Access Switch In Small Offices Access Switch tends to take the role of Core Switch. Enterprise Network Architecture
- 27. Network Storage Stores Data of Heterogeneous Clients (Servers, PC’s) Enterprise Network Architecture
- 28. Router Allows to terminate WAN Links. E.g. ADSL, MPLS, Lease Line. Enterprise Network Architecture
- 29. Security Appliance Secures the Enterprise from internet attacks Enterprise Network Architecture
- 30. Wireless Access Point Provides Wireless Network access to the users. Enterprise Network Architecture
- 31. Unified Communication System Responsible for providing IP Telephony, Video Conferencing Services. Enterprise Network Architecture
- 32. Site to Site VPN allows branch Remote Access VPN allows offices to share and access Remote Users to securely access corporate resources. corporate resources. Enterprise Network Architecture
- 33. 3 – Tier Architecture
- 34. 2 – Tier Architecture (Collapsed Core)
- 35. Thank You