1. An overview of:IP, the Internet and its impact on the Maritime industry Paul Jolleypajolley@gmail.com +44 (0) 7879 624040

2. Agenda Development of IP & the Internet TCP/IP - The most common Internet Protocol suite Maritime Satellite Communications Dealing with TCP/IP Onboard ship Applications being enabled by IP Summary Glossary of terms used A drop in the Ocean To find our more.... 3. Development of IP & the Internet All due to a single satellite Sputnik IP suite followed quickly to allow computers to communicate The internet is simply a Network A global network of networks Internet and www. are not the same thing There are many Applications on the Internet: e-mail, chat, FTP, VoIP, www..... IP binds them all 4. Why is IP Needed Protocols govern how data is sent, transmitted and received, e.g. Understand didnt have other us difficult if it would be quite rules each these for to we It would be quite difficult for us to understand each other if we didnt have rules The postal service for a Network and therefore the Internet A unique address for every Computer on the Internet: 192.32.67.136 Not one Government or Corporate body owns, maintains or governs the Internet The Internet is therefore comprised of many diverse components from a multitude of suppliers configured and connected in diverse ways 5. TCP/IPA perfect partnership? Packet switched Vs Circuit switched transport mechanisms TCP is an Transport Protocol that governs the flow of data across an unregulated and assumed congested network TCP includes Sequencing, a Receipt system and Error checks Unfortunately those very advantages over pure IP impact upon efficient use of Maritime Communications 6. Maritime Satellite CommunicationsDealing with TCP/IP TCP Feature Consequence over SatelliteSlow start ~ 1KB before firstSeverely hampers the inbuiltAcknowledgement (ACK)exponential ramp mechanism in TCPReceiver Host ACK for each TCP Absorbs scarce and valuablePacket bandwidth with data rather than informationSend all since last ACKWastes scarce & valuable bandwidth with data the majority of which may have already been receivedWindow Size 64kB (524,288Limits throughput to 374 kbpsbits) is Maximum data betweenover a 1.4 second RTT latentACKcircuitLinear throughput increase after Takes a long time if ever to reachACK failuremaximum throughput 7. Maritime Satellite Communications (2)Dealing with TCP/IPMethods to deal with TCP overSatellite:AccelerationModified error checkingReplicationVirtualisationCachingAlternate Protocols 8. Onboard ShipApplications reach out to seaBPM Social Media Onboard LANVideo Telemedicine Conferencinge-Learning e-Navigation SCADA GSM 9. SummaryThe Tide has turned Vessel can become a true extension of the Office IP Satellite not Bandwidth / Throughput has been the real game changer for the industry IPv6 will be the next major influencer as we move from the age of data to the age of things e.g. Onboard M2M a Smartship Thank you.........Q&C? 10. GlossaryIP Internet ProtocolTCPTransmission Control ProtocolHTTP HyperText Transfer ProtocolWWWWorld Wide WebFTPFile Transfer ProtocolVoIP Voice over Internet ProtocolARPA Advanced Research Projects AgencyARPANETThe first four computers connected by ARPA 11. A drop in the OceanTo find our more................ http://www.warriorsofthe.net/ http://electronics.howstuffworks.com/tech http://computer.howstuffworks.com/internet/basics/internet-start1.htm http://computer.howstuffworks.com/internet/basics/internet.htm http://computer.howstuffworks.com/internet/basics/internet-infrastructure.htm http://computer.howstuffworks.com/router8.htm http://computer.howstuffworks.com/question5251.htm http://computer.howstuffworks.com/internet/basics/internet-infrastructure10.htm http://computer.howstuffworks.com/internet/basics/question5493.htm http://computer.howstuffworks.com/internet/basics/question5493.htm http://en.wikipedia.org/wiki/Internet_Protocol http://en.wikipedia.org/wiki/Transmission_Control_Protocol http://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol http://en.wikipedia.org/wiki/Satellite_Internet_access#Geostationary_unsuitable_for_low-latency_applications http://en.wikipedia.org/wiki/User_Datagram_Protocol http://www.vsat-systems.com/Education/Satellite-Internet-Explained/Performance/Protocols-and-applications/ http://www.wtec.org/loyola/satcom2/04_05.htm http://www.cisco.com/en/US/docs/ios-xml/ios/interface/configuration/15-2mt/ir-rt-bsd-sat.html#GUID-E5C0854C-1BC8-4798-97A3-020F1FD1782F http://irfansalam.wordpress.com/2012/05/09/tcpip-factors-over-a-satellite-vsat-connection/