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Regional ATN Transition Planning Varadero, Cuba May 2002 Presentation ATN 4.2 by H. Tran.

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Presentation on theme: "Regional ATN Transition Planning Varadero, Cuba May 2002 Presentation ATN 4.2 by H. Tran."— Presentation transcript:

1 Regional ATN Transition Planning Varadero, Cuba May 2002 Presentation ATN 4.2 by H. Tran

2 Regional ATN Planning Establish an ATN Regional Task Force The Regional Task Force should develop an ATN Transition Plan for the CAR/SAM Region The Regional Task Force should be tasked to develop various regional ATN implementation related documents

3 ATN Implementation Related Documents The following ATN Implementation issues need to be addressed by the regional ATN task force: Regional ATN Routing Architecture Plan Regional ATN Addressing Plan Regional ATN AMHS Naming Plan Regional ATN NSAP Addressing Registration Regional AMHS ICD Regional BIS Router ICD Regional CNS FASID Regional ATN Transition Plan Regional ATN Routing Policy (IDRP) Regional Routing Policy (MTA) Regional Directory Services Regional System Management System Performance Security

4 ATN Transition Plan Recommendation for a Three Stage ATN Transition: ` Stage 1 - Upgrade Current/Existing Infrastructure ` Stage 2 - Establishment of a Ground ATN Backbone Router Network ` Stage 3 - Connectivity of User ATN Routers to the Backbone

5 Stage 1 - Existing Infrastructure AFTN Infrastructure Based on point to point circuits Majority of Circuits are low speed: 50 baud through to 9600bps Circuit Protocols range from no protocols through to COPB and X.25

6 Current US/CAR/SAM/Mexico AFTN/VOICE Connections US

7 Aruba Belize Guatemala El Salvador Honduras Costa Rica Panama Nicaragua USA Bahamas Cuba Cayman Islands Jamaica HaïtiRepublica Dominican a Puerto Rico Curaçao Peru Current US/MEVA AFTN/VOICE Connections

8 Venezuela Guyana Puerto Rico Trinidad & Tobago St Marteen St Vincent Guadeloupe St Lucia St Kitts & Nevis Dominica Martinique Antigua Anguilla Montserrat Grenada Barbados USA Current US/E-CAR AFTN/VOICE Connections

9 Venezuela Colombia Ecuador Peru Bolivia Chile Paraguay Uruguay Argentina Brasil Guyane Française Suriname Guyana Trinidad & Tobago USA Puerto Rico USA Current US/REDDIG AFTN/VOICE Connections

10 Belize Guatemala El Salvador Honduras Costa Rica Panama Nicaragua USA Cuba Cayman Islands Mexico Current US/CAMSAT AFTN/VOICE Connections

11 Current CAR/SAM Region AFTN Data Speed 75 Bauds 300 Bauds 9.6 Kbps 50 Bauds 2.4 Kbps 150 Bauds 110 Bauds 600 Bauds 1.2 Kbps CAR/SAM/3-WP/18 APPANDIX A

12 2% 83B3 2% 85A2 2% X25 10% None 77% COPB 7% Current Regional Protocols About 90% None ATN supports protocols CAR/SAM/3-WP/18 APPANDIX A

13 Stage 1 - Upgrade of Circuits ATN at present recommend to use Subnetworks to interface at X.25, Which require existing non-compatible AFTN circuits will need to be upgraded

14 Stage 1 - Bandwidth Issues Overheads from each layer of the OSI stack will increase total message size as much as 94% (standard AFTN message size using AMHS) Bandwidth for circuits will need to be increased substantially Minimum speed 9.6kbps is required for ATN AMHS application Recommend 64kbps or higher will need to be considered for the regional ATN backbone

15 Site A AMHS AIDC ADS CPDLC FIS Site C ADS CPDLC FIS Site B AMHS AIDC ATN Applications ATN

16 Stage 2 - ATN Backbone Selection of Locations based on Existing Inter-Regional Connections and Main Internal Connections Diversity for Backbone Connectivity within the CAR/SAM Region and Neighbouring Regions Minimum of 64kbps for Backbone Trunk Speeds

17 Inter-Regional Trunk Connection Intra-Regional Trunk Connection EUR RegionASIA Region AFI Region CAR/SAM Region Example ATN Regional Backbone I A C G D F B H E

18 Example CAR/SAM ATN Routing

19 Stage 3 - ATN Connectivity Generally ATN Routers will connect to the ATN Backbone In some cases ATN Routers will connect to other ATN Routers to get to the ATN Backbone

20 AFTN to AMHS Transition For the very first time there is now an alternative to the replacement of an AFTN system - AMHS Transition to AMHS can involve a number of steps - Introduction of AFTN/AMHS Gateways. - To full AMHS Interconnection between States.

21 Current AFTN Environment Site CSite DSite B Site A AFTN System X.25 Low Speed AFTN System AFTN System AFTN System

22 Site A AMHS Gateway ATN Router ATN Router AMHS Gateway Implementation of AFTN/AMHS Gateways Site B AFTN System AFTN System X.25 Site D AFTN System Site C AFTN System X.25 Low Speed

23 Site A AMHS System ATN Router AMHS Gateway Domestic Network Domestic AMHS Systems Domestic AMHS Terminals Migration to AMHS - 1 Site C AFTN System Site D AFTN System X.25 ATN Router AMHS Gateway ATN Site B ATN Router AMHS System

24 Migration to AMHS - 2 Site C ATN Router AMHS System Site B ATN Router AMHS System Site A AMHS System ATN Router ATN Domestic Network Domestic AMHS Systems Domestic AMHS Terminals Site D AFTN System ATN Router AMHS Gateway

25 Full AMHS Implementation Site D ATN Router AMHS System Site C ATN Router AMHS System Site B ATN Router AMHS System Site A AMHS System ATN Router ATN Domestic Network Domestic AMHS Systems Domestic AMHS Terminals

26 Current ATN Trials Infrastructure In Europe

27 Inter-Regional Trunk Connection New Inter-Regional Trunk Connection Intra-Regional Trunk Connection New Intra-Regional Trunk Connection ATN Asia Regional Backbone Plan NAM Region EUR Region MID Region AFI Region Asia Region AU CN JP IN TH SG HK

28 Asia/Pacific ATN Routing Plan AU CNJP IN TH SG TOTVWFPF FJNZ ID KR NR CKKINCWS NP MO TW VUPGSB BD VN BNPH MM MV LKBT KH LA MY KP MN NU US MHFMPWAS ATN Backbone Site ATN Site HK

29 ATN G/G Applications AIDC The AIDC will automatically exchange ATC information between ATSU, in support of the ATC functions : NOTIFICATION of flights approaching an FIR boundary, CO-ORDINATION of boundary crossing conditions, TRANSFER of control at the FIR boundary.

30 AIDC Overview BIS AIDC BIS ES Aircraft Flight AIDC Flight notification, coordination, and transfer between FIRs Legend AIDC ATS Inter-facility Data Communication BIS Boundary Router ES End System FIR Flight Information Region ATN BIS AIDC ES AIDC

31 AIDC Implementation ATN AIDC is not Compatible with AIDC over AFTN Implementation of ATN AIDC will need to be implemented by arrangement between both parties Possible phased implementation can be AIDC over AFTN to AIDC over AMHS

32 AIDC Over AMHS ATN Site A AMHS System ATN Router Domestic Network AIDC End System Site B ATN Router AMHS System Domestic Network AIDC End System

33 Conclusions ATN is a policy agreed among ICAO member states Implement new links or Upgrade existing AFTN links where appropriate to be compatible with ATN protocols Plan for adequate bandwidth which can be increased without restriction Each Region needs to developed its own implementation plan and related documents to address its own regional environment Interim arrangements can be set up between States/Organizations which can provide ATN service or gateway


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