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Federal Aviation Administration CAR/SAM Regional AMHS Transition Plan Presented to the International Civil Aviation Organization Asia/Pacific Regional AMHS Workshop Chennai, India Date: 15-16 December, 2008 Our Vision:BACKGROUND Service and Safety • • This presentation highlights the efforts of the CAR/SAM ATN Task Force, which has been enforce for the past three years. The Task Force Fourth meeting will be held at the end of June 2008 in Santo Domingo, Dominican Republic. • The scope of the CAR/SAM ATN Task Force is to – Ensure smooth transition from Aeronautical Fixed Telecommunication Network (AFTN) to AMHS environment and – Prevent any possible interruption in the AFTN and Air Traffic Voice service operation during the transition period. 5-6 June 2008 Federal Aviation Administration 22 ATC Voice and AFTN Configuration 8 kbps 8 kbps VSCS VSCS FDIO Voice Switch 64 kbps 9.6 kbps 9.6 kbps AFTN Host DSR FAA AFTN State A Voice Switch AFTN State B 5-6 June 2008 Federal Aviation Administration 33 CAR/SAM Existing International Backbone Our Vision: Service and AFTN Safety •USA •Bahamas •Cuba •Cayman •Islands •Haïti •Jamaica •Republica •Dominican •a •Puerto •Rico •Anguilla •St Marteen •St Kitts •& Nevis •Belize •Antigua •Montserrat •Guatemala •Guadeloupe •Dominica •Honduras •Martinique •El Salvador •St Lucia •Nicaragua •B •a •r •b •a •d •o •s •St Vincent •Aruba •Curaçao •Grenada •Costa Rica •Panama •Colombia •Venezuela •Guyana •Suriname •Trinidad •& •Tobago •Guyane •Française •Ecuador •Peru •Bolivia •Brasil •Paraguay •Connection between Networks •Chile •REDDIG •Argentina •Uruguay •E-CAR •MEVA •BIS Router •IS Router 5-6 June 2008 Federal Aviation Administration 44 CAR/SAM Regional Our Vision: Service and Plan Safety • In 2006, the CAR/SAM region adopted AMHS over TCP/IP to replace their AFTN service. • Various States in this region have obtained or are in the process of obtaining, the AMHS and AMHS/AFTN Gateway. • The first AMHS service over IP will be implemented between Argentina and Paraguay, and it is projected for the middle of 2008. 5-6 June 2008 Federal Aviation Administration 55 National CAR/SAMand Regional ATN Our Vision: Service Safety Backbone Architecture US ASIA Region HN AT HT JM TT BB PE EUR Region VE CC AR AFI Region Inter-Regional Trunk Connection Intra-Regional Trunk Connection 5-6 June 2008 BR CAR/SAM Region AR: Argentina AT: Antigua BB:Barbados BR: Brazil CC: Chile HN: Honduras HT: Haiti JM: Jamaica PE: Peru TT: Trinidad and Tobago US: United State of America VE: Venezuela Federal Aviation Administration 66 Issues Our Vision: Transitional Service and Safety • AMHS Network Protocols • CLNP/TP4 • IPS-based networks • MTA to MTA Communication • Dual Operation of AMHS and Alternative Routing • A well coordinated upgrade of the circuit data rate table will be needed to support alternative routing • AFTN circuits Upgrades 5-6 June 2008 Federal Aviation Administration 77 Transitional Issues Routing Policy should be developed to address the following: • Intra-Region MTA routing during the AFTN/AMHS transition period. • Intra-Region MTA routing at End-State Environment. • Inter-Region MTA Routing during transition period. • Inter-Region MTA Routing at End-State Environment. 5-6 June 2008 Federal Aviation Administration 88 Transitional Plan – New Requirement Our Vision: Service and Safety Binary Universal Form Representation (BUFR) code – BUFR code was developed by the ICAO OPLINK Panel. – BUFR code is used to provide graphic meteorological data. – BUFR code was targeted for distribution by AMHS because AFTN can not support binary based messages. – BUFR code has been adopted by the WMO and the ICAO but XML is also being considered. – The ICAO Regional Offices have been analyzing the BUFR code to determine the impact to AMHS (AMHS X.500 based Directory Service versus modifying the MTA). 5-6 June 2008 Federal Aviation Administration 99 Our Vision:Transitional Servicand PlanSafety - IP • IPv4 Intra-Regional and IPv6 to External ICAO Regions External Region CAR/SAM Region AMHS AMHS IP Router IP Router IPv6 5-6 June 2008 IP Router IP Router BOUNDARY AMHS BOUNDARY AMHS IPv4 IP Router IP Router AMHS AMHS Federal Aviation Administration 1010 Protocol Stacks for Current AMHS Applications Our Vision: Service and Safety AMHS APPLICATION (Message Transfer Agent) Presentation Layer Session Layer 5-6 June 2008 TP4 TP0 RFC 1006 TCP CLNP IPv4 Federal Aviation Administration 1111 Transitional Plan - IP IPv4 and IPv6 Intra-Regional, and IPv6 to External ICAO Regions External Region CAR/SAM Region AMHS AMHS IP Router IP Router IPv6 5-6 June 2008 IP Router IP Router BOUNDARY AMHS BOUNDARY AMHS IPv4/IPv6 IP Router IP Router AMHS AMHS Federal Aviation Administration 1212 Protocol Stacks for Transition-Phase AMHS Applications AMHS APPLICATION (Message Transfer Agent) Presentation Layer Session Layer 5-6 June 2008 TP0 RFC 1006 TCP TP0 RFC 2126 TCP IPv4 IPv6 Federal Aviation Administration 1313 End State IPv6 for Intra-Region and Inter-Region External Region CAR/SAM Region AMHS AMHS IP Router IP Router IPv6 IP Router IP Router BOUNDARY AMHS BOUNDARY AMHS 5-6 June 2008 IPv6 IP Router IP Router AMHS AMHS Federal Aviation Administration 1414 IP Transitional Issues • The aeronautical communication industry (i.e., AMHS system providers) have not fully developed the MTA to support IPv6. • The Technical Manual for the IPS will be finalized by the Aeronautical Communication Panel (ACP) in late 2008. However, ICAO Doc. 9880 Part II B for AMHS is now available. • Initial implementations in the ICAO European Region are using AMHS over IPv4 in separate sub-regions. Two of these sub-regions are interconnected via IPv6 using a network address and protocol translation technique whereby IPv4 messages are converted to IPv6 across the interface and then back to IPv4. • Many CAR/SAM member States have already implemented the AMHS or will replace the AFTN service in the near future. • The Asia/Pacific region needs to [work out] resolve the network protocol issues with European and South American regions (ATN router or IP router). • A global AMHS network coordination is required to ensure smooth operation. • Implementing security measures. • IP addressing scheme needs to be developed for AMHS 5-6 June 2008 Federal Aviation Administration 1515 Evolving ATN Interconnection of A/G and G/G Routers IDRP IDRP SAT IDRP VDL IDRP IP ROUTER VDL IDRP ATN ROUTER X.25/IP Sub-network ATN ROUTER VDL IP ROUTER IDRP IP Network ATN ROUTER IP ROUTER AMHS 5-6 June 2008 IDRP ATN ROUTER LAN Sub-network IDRP: Inter-domain Routing Protocol IS-IS: Intermediate SystemIntermediate System Routing Protocol SAT: Satellite VDL: Very High Frequency (VHF) Data Link LAN: Local Area Network Federal Aviation Administration 1616 Implementation Documents Needed ICAO Regional ATN/AMHS Implementation Documents CAR/SAM AMHS Network Status Table IP Router ICD AMHS and IP Router Compatibility Test Procedure 5-6 June 2008 CAR/SAM AMHS Network Backbone Trunk AMHS Routing Policy AMHS VPN Security CAR/SAM TCP/IP Routing Policy IPv6 Address Scheme Directory Service CAR/SAM Directory Service CAR/SAM ATN Task Force Task Assignment Federal Aviation Administration 1717 CAR/SAM Regional AMHS Implementation Documentation AMHS Transition Plan would include the following appendices to address variety of issues: Appendix I CAR/SAM AMHS Network Status Table: - Document AMHS implementation status of the States Appendix II CAR/SAM AMHS Network Backbone Trunks: - Document the Telecommunication Backbone/circuits Appendix III CAR/SAM TCP/IP Routing Policy: - Specify the routing for primary route and alternate routes for each AMHS connection. It also specifies the regional backbone hubs and its policy to route traffic 5-6 June 2008 Federal Aviation Administration 1818 CAR/SAM Regional AMHS Implementation Documentation Appendix IV IPv6 Addressing Scheme - Global address designation Appendix V IP Router Interface Control Document - Specify the lower three layers of the router and Appendix VI AMHS Routing Policy - Address MTA to MTA within the region and MTA to other MTA outside region during the transition and end state (global network protocol compatibility environment) Appendix VII AMHS Addressing Scheme (Slide 17 shows Directory Service not AMHS Addressing Scheme) 5-6 June 2008 Federal Aviation Administration 1919 CAR/SAM Regional AMHS Implementation Documentation Appendix VIII CAR/SAM Directory Service Issue needs to be evaluated Appendix IX AMHS and IP Router Compatibility Test Procedure Ensure hardware and software will be compatible between different platforms Appendix X AMHS VPN Security Address network protection measure Appendix XI CAR/SAM ATN Task Force Task Assignments Assignment Documents actions and efforts by the state members 5-6 June 2008 Federal Aviation Administration 2020 OPERATION CONSIDERATIONS MTA to any MTA (via IP) • This is the end state goal. In the interim, the regional major hub should take active role to ensure the smooth operation. Dual operation of AFTN and AMHS • Dual Operation during transition period will require regional major hubs to act quickly to prevent significant network problems. Regional AMHS Management Center • A Regional AMHS Management Center should be designated to timely coordinate with other regions and within region to support the AMHS cutover activities as well as AMHS operation. System performance standards • Develop System Performance Standards to address legal recording, tracking message, delivering of messages, etc. 5-6 June 2008 Federal Aviation Administration 2121 Acronyms • • • • • • • • • • • • • • • • • • • • • • • • • • AFS ACP AFTN AIDC AMHS ATC ATN BUFR CIDIN CLNP DOTS FASID FIR ICAO IDRP IP IPS MTA MTCU MTS NOTAM OSI SARP SNDCF UA WMO 5-6 June 2008 Aeronautical Fixed Service Aeronautical Communication Panel Aeronautical Fixed Telecommunication Network Air Traffic Service Inter-Facility Data Communication Air Traffic Service Message Handling System Air Traffic Control Aeronautical Telecommunication Network Binary Universal Form Representation Common ICAO Data Interchange Network Connection Less Network Protocol Dynamic Oceanic Tracking System Facilities and Services Implementation Document Flight Information Region International Civil Aviation Organization Inter Domain Routing Protocol Internet Protocol Internet Protocol Suites Message Transfer Agent Message Transfer and Control Unit Message Transfer System Note to Air Men Open System Interface Standard and Recommended Practices Sub Network Dependent Convergence Function User Agent World Meteorological Organization Federal Aviation Administration 2222