Asia/Pacific AMHS Implementation Workshop AMHS Description and Implementation December 15-16, 2008 Chennai, India

Federal Aviation Administration 2 Aeronautical Telecommunications Network (ATN) Air Traffic Service Message Handling System (AMHS) Open System Interconnection(OSI)/ Internet Protocol Suite(IPS)/ Open System Interconnection(OSI) over TCP/IP Mail Transfer Agent (MTA) Operation User Agent (UA) Operation Objective

Federal Aviation Administration 3 Implementation Documents

Federal Aviation Administration 4 What do I need to do ?

Federal Aviation Administration 5 ATN based on OSI (ATN/OSI) as specified in ICAO Doc was completed in 2003 (ed. 3) by ATN Panel ATN/OSI that use TCP/IP network is developed by ACP in 2008 for OSI based applications as specified in ICAO Doc ATN is designed by Aeronautical Communication Panel (ACP) as a seamless network to distribute Air Traffic Control (ATC) message among ICAO members including Air to Ground (A/G) messages ATN based on Internet Protocol Suite (ATN/IPS) as specified in ICAO Doc (expected publication January 2009)

Federal Aviation Administration 6 AMHS component includes: ATS message server ATS message user agent (UA) AFTN/AMHS GatewayAMHS

Federal Aviation Administration 7 AMHS is a message handling system that allows Office of Air Traffic Services (ATS) Messages to be exchanged between service users. It based on ISO/IEC or ITU-T X.400. AMHS message service provides Basic Service and Extended Service Basic Service- Based on ISO/IEC 10021: 1990 Extended Service- Based on ISO/IEC 10021: 1999 Extended Service is a superset of Basic Service, support more complex message structures (body parts), use of the directory service, and support security Aeronautical Message Handling System (AMHS)

Federal Aviation Administration 8 AMHS AFTN/AMHS Gateway ATS Message Server MTA MS UA AFTN component ATN component MTCU AFTN MTA (Message Transfer Agent) Send out/Receive ATN Message MS (Message Store) AFTN (Aeronautical Fixed Telecommunication Network) MTCU (Message Transfer and Control Unit) provides interface between the ATN and AFTN components. UA (User Agent) provide interface for user sends or gets mail

Federal Aviation Administration 9 AMHS Basic Service Aeronautical Telecommunications Network (ATN) AFTN Switch AFTN Terminals AFTN/ AMHS GW ATSMessageServer UA AMHS Terminals ATN G/G Router AFTN Terminals AMHS Terminals UA AFTN Terminals AMHS Terminals UA ATN G/G Router Combination AFTN/AMHS Gateway ATS Message Server Combination AFTN/AMHS Gateway ATS Message Server AFTN Switch AFTN Switch MTCU MTA MS MTA MS ATN G/G Router MS MTA MTCU MS MTA

Federal Aviation Administration 10 AMHS Extended Service Aeronautical Telecommunication Network (ATN) MS MTA w DUA MS ATS Message SERVER AMHS Terminals UAw DUA UAw DUA UAw DUA AMHS Terminals UAw DUA UAw DUA UAw DUA X-500DIRECTORY DBA ATN G/G RTR MTA w DUA ATN G/G RTR ATS Message SERVER

Federal Aviation Administration 11 ATS Message Server Message Transfer Agent (MTA) Message Store (MS) The ATS Message Server consist of 2 main components Routing Sending/Receiving Store and retrieve received messages Long-term logging of all messages passing through MTA and store at least 30 days The ATS Message Server should perform the following Encoding Decoding

Federal Aviation Administration 12 The AMHS addressing scheme and logging information handle by ATS Message Server should include 7.Last element of the trace information 8.Arrival/submission time 9.Transfer destination and time 10.Recipient name 11.Delivery time 12.Delivery and non delivery reports 1.Message identifier 2.Priority 3.Content type 4.Originator name 5.Recipient name 6.Message content size ATS Message Server

Federal Aviation Administration 13 ATS Message User Agent (UA) It provides the input mechanism and protocol for users to send and receive messages. It interfaces with the MTA or/and MS normally through the LAN or IP network over dedicated circuits or Virtual Private Network (VPN)

Federal Aviation Administration 14 AFTN/AMHS Gateway AFTN/AMHS gateway is to convert AFTN messages to AMHS messages or via versa, the gateway includes four logical components AFTN component ATN component Message Transfer and Control Unit (MTCU) Control Position (PC)

Federal Aviation Administration 15 Provide interface with AFTN and MTCU Handle AFTN message format using ITA-2 (International Telegraph Alphabet No 2), the AFTN component shall convert message to/from IA-5 (International Alphabet 5) format AFTN Component Provide interface with AMHS and MTCU Ensure all AMHS information passing MTCU complied with base standard of ATS Message Server ATN Component AFTN/AMHS Gateway

Federal Aviation Administration 16 AFTN/AMHS Gateway Message Transfer and Control Unit (MTCU) Provide bi-directional conversion facility between the AFTN component and ATN component Using IA-5 character internally Control Position (CP) Provide monitor for the AFTN/AMHS Gateway Non-delivery message

Federal Aviation Administration 17 APANPIRG AMHS PLAN States with BBIS responsibility will continue to implement AMHS based on ATN/OSI The BBIS MTA can utilize TCP/IP network by using RFC 1006 for UA interface or other MTA (non – BBIS) ASIA/PAC MTA Operation These States will interface with other BBIS State via ATN Router using X.25 subnet

Federal Aviation Administration 18 APANPIRG AMHS PLAN Decision to adopt AMHS based on ATN/OSI as specified on ICAO SARP, Doc 9705 (2005) Identified states with major backbone network responsibility Australia China Fiji Hong Kong, China India Japan Singapore Thailand USA

Federal Aviation Administration 19 These BBIS would implement AMHS with ATN Router ATN/OSI (AMHS) AMHS Intra Region BOUNDARY AMHS ATN Router AMHS ATN Router ATN Router ATN Router ATN Router

Federal Aviation Administration 20 FAA ATN/AMHS Interconnection NADIN PSN Duplex ATN Router LAN Duplex FAA AMHS Duplex FAA AMHS TCP/IP/CLNP AFTN Gateway X.25 MTA ATN Network Network Management ES-IS NADIN MSN Host X.25 AFTN Control Position IDRP FDIO 64 Kbps

Federal Aviation Administration 21 FAA AMHS Protocol Stack AFTN SWITCHING COMPONENT Message Transfer and Control Unit MTA Application Process To OSI Regions TP4 X.400 AE ISO Presentation ISO Session CLNP TP0 IPv4 TCP RFC 1006 To IPS Regions ATN COMPONENT

Federal Aviation Administration 22 ATN Region - IP Region Internetworking AMHS ATN Router BOUNDARY AMHS IP Router AMHS BOUNDARY AMHS IP Router IP Router IP Router IP Router IP Router ATN REGIONIP REGION ATN Router ATN Router ATN Router ATN Router

Federal Aviation Administration 23 Dual Stacks AMHS ATN SARP compliant MTA and Router states can exchange traffic from their MTA to any MTA IP based MTA and Router will require its traffic to be forwarded by ATN SARP compliant MTA Discussion : - Address allocation- IPv4 vs. IPv6- Documentation TP4 CLNP AMHS MTA SARP Compliance AMHS Message IP Based AMHS Message ATN Router MTA ATN Router ATN Router IP Router IP Router IP RFC 1006 TCP

Federal Aviation Administration 24 AMHS/ATN Operation AMHS will use AFTN/ATN Gateway to ensure the message will continue to be compatible with automation equipment AFTN/AMHS Gateway will continue to process AFTN based messages direct from other AFTN switches UA will interface directly with MTA and AFTN/AMHS GW will convert to AFTN message format as required During transition period, all AMHS messages will be processed and routed by associated MTAs

Federal Aviation Administration 25 UA Operation UA is a PC based with COTS Web browser (Internet Explorer, Firefox, etc…) UA is designed to replace AFTN Terminal IPv4 is recommended for User Agent (UA) interfaces with MTA UA can connect to its MTA using IPv4 Addressing Scheme via dedicated circuit or Internet (VPN)

Federal Aviation Administration 26 Asia/Pacific ATN Regional Backbone Inter-Regional Trunk Connection New Inter-Regional Trunk Connection Intra-Regional Trunk Connection New Intra-Regional Trunk Connection NAM Region EUR Region MID Region AFI Region APAC Region AU CN JP IN TH SG HK US is North America Backbone FJ Japan China Hong Kong, China Thailand Fiji India Singapore Australia North America Europe Middle East Africa

27 Federal Aviation Administration Asia/Pacific ATN Regional Router Plan

Federal Aviation Administration 28 Conclusion The ATNICG has envisioned that States in the region with AFTN switches should replace them with AMHS The BBIS States should implement AMHS as soon as possible The BBIS states with interface to other regions that adopt TCP/IP, should establish connection based on bilateral agreement States in the region that have only one connection or AFTN terminal should work with their associated BBIS States to implement UA ATNICG has recommended that any upgrade to existing AMHS implementation will be considered at the next technical refresh cycle ATNICG’s primary task is to ensure smooth transition to AMHS environment while sustaining the AFTN operation

Federal Aviation Administration 29 QuestionsandDiscussion