12Select Carefully Does the ISP have the right services? Will it meet the growth of the company?Example: PatNet ISP offers $5/month & 5 addresses to Fisher RealtyWhat if 2 years from now Fisher Realty has an office with 12 employees & now needs a web presence?Switching ISP’s creates more work & hassle
13U to the I…to the S…to the P You connect to the POPPOPs connect you to the ISP
19Ping & Tracert Ping- connectivity test (echo request) Time it takes to travelWhether it’s reachableTracert (Windows) shows pathTraceroute (Router CLI) shows pathLab 1.2.3Ping sends ICMP echo request & reply to show connectivity & speed/time.
20ReviewIf you ping, do you (as the source) send out an echo request or an echo reply?Echo requestWhat Tier ISP peers with others same sized ISP’s to form the backbone?1What is the name of the connection point where you connect to the ISP?POP
21Review Which Internet service would a medium/large business use? Metro, T1, T3What can 2 things can you tell from a ping test?Connectivity & how fast travelsWhat document tracks the development of standards?RFC
22Review Which test is this? What connects the backbones? TracertWhat connects the backbones?IXP (Internet Exchange Point)What year did the Internet become widely available for consumers?1991
24ISP Devices- Must Haves Needs to connect to other ISPs & handles lots of trafficDSLAMCMTSModems for dial-upWireless BridgingBorder gateway routersServers for client servicesPower Conditioning EquipmentAir ConditionersPlus power conditioning & air conditioning
25ISP Requirements Must be reliable & scalable Packet Tracer Lab 18.104.22.168 Other wise loss of customers= no moneyDevice that are modular are good!Packet Tracer Lab
26ISP Roles & Responsibilities Customer Service receives the order from the customer and ensures that the customer's specified requirements are accurately entered into the order tracking database.Planning and Provisioning determines whether the new customer has existing network hardware and circuits or whether new circuits need to be installed.The On-site Installation is advised of which circuits and equipment to use and then installs them at the customer site.The Network Operations Center (NOC) monitors and tests the new connection and ensures that it is performing properly.The Help Desk is notified by the NOC when the circuit is ready for operation and then contacts the customer to guide them through the process of setting up passwords and other necessary account information.
28Review When you ping, what does RTT mean? Round trip timeWhat does a ping send to a destination?Echo requestSpeed of a T1 & T3?T1= 1.5MbpsT3= 44MbpsWhich Tier ISP forms the Internet backbone?1
29Review What interconnects the backbone? Bandwidth is measured in what? IXPBandwidth is measured in what?Bps (bits per second)What is a document that tracks the development of Internet standards?RFCIn what year did the Internet become widely available to consumers?1991