Networking
- 1. Networking And other geeky things you never thought you’d learn
- 2. Job Description: Even though Salary was “unspecified” it pays over 400 grand per year!!! Responsibilities * Serve as member of the Global Network Team for Genworth Financial, a global business with more than 5,000 employees worldwide. Perform LAN/WAN Hardware Installation, configuration and Management; The equipment includes Cisco routers, Cisco PIX, Nokia Checkpoints, Cisco switches, Big IP F5s, 3DNS F5, Cisco VPN devices and other networking gear. * Act as primary network technical specialist supporting the separation of the network between GE and Genworth. * Integrate Europe and Australia into the Genworth core network. * Technical leader for BGP and EIGRP routing protocols and installation. * Responsible for technical support and maintenance of Genworth Financial LAN/WAN, including capacity planning, tuning, router configurations, and troubleshooting the network and related devices. * Evaluate network capacity and make upgrade recommendation in alignment with GNW strategies. * Comply with change control processes.
- 4. APPLICATION Word Processing Graphics Spread Sheets Communications ( E-mail, Internet) Databases Games Each has its own format (i.e. Mp3, .doc, .xls)
- 5. Presentation “ On the way down” changes data from application info to NETWORK info. This allows for independence from conflicts in different data presentations It also “encrypts” the data for travel over a network Unencrypted Data is called “Plain Text”
- 7. Session The Three Way Handshake “ The Phone Call” of Networking Think of your old Dial Up Access If Dial Up is still new to you, think of the old operators Also terminates session
- 8. Transport/Transfer TCP ( Transmission Control Protocol) Sliding Window How Big of “Bytes” to take The firehose and the drinking fountain “ X-on X-off ” Buffer ( Wax on Wax off?) Show me the T3 !!! Error recovery
- 10. Network Here’s where Cisco makes the money! Switching and Routing and Packets OH MY! Forwarding and Hops LAN’s, WAN’s and Wi-Fi ( no Ron, not Hi-Fi) IP address more on this later !
- 11. Data-Link Layer Device Permission to receive data (MAC number) and send it error checking Flow control…..the long and painful phone conversation FRAMES
- 12. Physical The Hardware 0’s and 1’s Electric Light Orchestra
- 13. Terms to know Static IP Dynamic IP VPN ( virtual private network ) Subnetting Ports VOIP ( Voice over IP ) Ethernet Cat 5
- 14. MORE terms to know Digital Analog ( almost outdated ) Switch Router Fiber (Not a Bran Muffin) Ports
- 15. Cutting Edge SIP Phones ( Session Initiated Protocol) Digital Guitar PVR’s ( a video iPod?) Household Gadget IP’s Are you kidding me? Windows with a twist! Smart Rooms ! CSI in real life!
- 16. It Takes Two Let’s stop and look at Binary Octets ( A great name for a retro punk band don’t you think?)
- 17. IP- Therefore I AM 150.215.17.9 10010110.11010111.00010001.00001001 150.215.0.0 = The network name 10010110.11010111. 00000000.00000000 150.215.255.255= the “Broadcasting Network” 10010110.11010111. 11111111.11111111
- 18. Subnetting for “Cheaters” “ Borrowing” Bits 10010110.11010111 .00000000.00000000 network Users 10010110.11010111 . 0000 0000.00000000 borrow IP=150.215.0.0 Subnet= 255.255.240.0