Varadero, Cuba

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FAA Ground to Ground ATN Implementation Plan
Presentation ATN 2.5 by H. Tran

• Varadero, Cuba
• May 2002

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FAA Ground to Ground ATN Implementation Plan

• FAA ATN Backbone Infrastructure
• FAA ATN Applications

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FAA ATN Backbone Infrastructure
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Current FAA Data/Voice Communications Networks
Packet Switched Network (PSN)Users include
AFTN, MSN, WMSCR, TDWR, TMS, CNS, etc.
National Airspace Data Interchange Network II
(NADIN PSN) X.25
Wide area network service for both dedicated and
dial-up.Users include FAA Headquarters,
Regional Offices, Aeronautical Center, Technical
Center, OCC, NOCC, AFSS, andetc.
Administrative Data Transmission Network(ADTN)
TCP/IP
Switched voice and data, video conferencing,
bandwidth on demand and dynamic adaptive
routing.Users include ARTCC and ATCSCC
Bandwidth Manager(BWM)
Data Multiplexing Network(DMN)
Use multiplexing techniques enable number of
independent data signals to be consolidated into
a single transmission channel.Users include
Radar data, weather data, ASOS, VORTAC, etc.
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Current FAA Data/Voice Communications Networks
(cont.)
Air-to-Ground links, ATS Ground-to-Ground
Communications, and Backbone circuits
Leased Interface Network Communications Service
(LINCS)
Dial-up services for administrative and routing
communications. Users include FAA Headquarters,
Regional Offices, Aeronautical Center, Technical
Center, OCC, NOCC, AFSS, andetc.
Federal Telecommunications Service (FTS)
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Future FAA Data/Voice Communications
Network FTI (FAA Telecommunications
Infrastructure)
FTI
ATM
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ATN Subnetworks

• A subnetwork is part of the communication
  network, but is not part of the ATN.
• It is defined as an independent communication
  network, which is used as the physical means of
  transferring information between ATN systems.

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ATN Subnetworks (continued)

• Almost any data communications network can be an
  ATN subnetwork
• X.25
• Frame Relay
• IP
• LAN
• Aeronautical Mobile Satellite
• VHF Digital Link
• Leased Lines, etc ...

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Future FAA ATN Network
FAA will use FTI to serve as a telecommunications
subnetwork for supporting FAA domestic ATN
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FAA ATN Program Plan

• Current FAA ATN Plan
• Implement BIS routers network to support the
  domestic and global ATN networks
• Implement AMHS servers to support
  Ground-to-Ground the Aeronautical Message
  Handling Service
• Implement CPDLC to support Air to Ground data
  communications

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FAA ATN Program Plan (Continue)

• Future FAA ATN Plan
• Continue evaluate other Ground to Ground and Air
  to Ground ATN applications

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Current FAA ATN Program Plan

• FAA Ground to Ground ATN BIS routers
  implementation plan
• ZOA (Oakland)
• ZMA (Miami)
• ZNY (New York)
• ZLC (Salt Lake)
• ZTL (Atlanta)

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FAA ATN Applications Implementation
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FAA Existing AFTN

• Existing AFTN is a point-to-point X.25
  infrastructure, confirmation is required
• AFTN messages are required to be processed by a
  transit station (ZLC Salt Lake or ZTL Atlanta)
  before they can be forwarded, including transited
  messages
• Non deliverable AFTN messages is required to
  store and forward

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FAA AFTN/NADIN Current Architecture
Airlines
ARINC
NADIN
MSN / AFTN
APN
(ZLC ZTL) NNCC
ADNS
Gateway
Gateways
(ZDC ZOA)
Gateway
NWS
X.25
SITA
Airlines
PSN
X.25
X.25
AFTN Foreign CAAs
MS
Gateway
X.25
Gateways
NADIN
X.25
PSN
(X.25 Frame Relay)
X.25
AFTN Terminals
X.25
Airlines
X.25
FR
G/W
Concentrator
IP
Routers
RUMS
Airlines
TCP/IP USERS
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ATN G/G ApplicationsAMHS

• AMHS will process ATS messages (e.g. Flight
  Plans, NOTAMs, etc) and transmit to its end
  users.
• Each AMHS will only process messages for its end
  users in its own domain.
• AMHS will function in bypass mode for transient
  messages.
• Several administrative domains may share a single
  AMHS.
• AMHS also performs as a gateway for AFTN/CIDIN,
  as required.

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FAA ATN/AMHS/NADIN Transition Architecture
Airlines
ARINC
NADIN
MSN / AFTN
APN
(ZLC ZTL)
ADNS
Gateway
NNCC
Gateways
(ZDC ZOA)
Foreign
Gateway
CAAs
X.25
NWS
SITA
Airlines
CLNP
PSN
IDRP
X.25
Other
X.25
MS
Gateway
Service
Gateways
Provider
NADIN
X.25
ATN G/G Routers
X.25
PSN
(ZNY, ZMA, ZOA, SCL and ATL)
(X.25 Frame Relay)
CLNP
X.25
IDRP
X.25
AMHS
X.25
Airlines
X.25
FR
AFTN Terminals
X.25
IP
G/W
Foreign
Routers
Concentrator
ATN Interface
CAAs
Airlines
RUMS
TCP/IP USERS
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CPDLC

• Controller Pilot Data Link (CPDLC) provides two
  ways communication between pilot and controller,
  but using data link rather than voice
• Exchange of Controller/Pilot messages.
• Transfer of data authority.
• Delivery of downstream clearance.
• Downstream is ahead of the aircraft, toward the
  destination.

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ATN ARCHITECTURE
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US ATN/AMHS Implementation Plan and Schedule

• FAA is currently implementing ATN/AMHS
• Requirements are in full compliance with ICAO
  SARP, 3rd Edition
• Service will be operational by 3rd quarter of
  Calendar year 2003 to comply with FAA/JCAB
  Bilateral Agreement
• Existing AFTN service with JCAB will be
  maintained in parallel during transition period

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Future FAA FTI/ATN/AMHS/CPDLC Architecture
Airlines
ARINC
APN
ADNS
Gateway
NWS
Gateways
(ZDC ZOA)
Foreign
CAAs
SITA
Airlines
CLNP
CPDLC
PSN
IDRP
FTI WAN
Other
MS
Gateway
Service
Gateways
Provider
ATN G/G Routers
(ZNY, ZMA, ZOA, SCL and ATL)
IP/FR/X.25/CLNP and ATM
CLNP
IDRP
AMHS
Airlines
AFTN Terminals
G/W
Foreign
Concentrator
ATN Interface
CAAs
RUMS
Airlines
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ATN/AMHS/CPDLC 1A
CPDLC in the ARTCC, and all the CPDLCs connect to
ATN G/G routers
Foreign CAAs
CPDLC
ATN G/G Routers
Service Provider
Foreign CAAs
CPDLC
ATN G/G Routers
Service Provider
2003 Deployment Planning
Foreign CAAs
CPDLC
ATN G/G Routers
Service Provider
CPDLC 1A ARINC Service Provider connects to ZAU
and ZDC
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Summary

• The FAA is in the process of replacing its
  telecommunications infrastructure which includes
• AFTN service
• X.25 base network
• Modem network
• Voice/Data network
• LAN/WAN/Email system
• Backbone Point-to-Point dedicated circuits

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Summary (continued)

• FAA will use this opportunity to establish a
  Ground to Ground ATN network and its application
  by deploying
• ATN BIS routers at various sites
• AMHS
• The new ATN network will replace the obsolete MSN
  and its service while providing better network
  management and security
• FAA also implements the CPDLC Air to Ground ATN
  application

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Summary (continued)

• The ATN backbone will allow FAA to respond to the
  telecommunications technology evolution without
  interfering with the neighboring states network
  infrastructure
• Implementing ATN will allow seamless transmission
  of ATN messages with minimum impact/delay to
  transiting domain

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Summary (continued)

• ATN environment will satisfy future A/G message
  delivery requirement
• Full ATN benefit will be realized if all states
  implement to ATN
• If an organization unable to implement ATN,
  arrangements need to be made with neighboring
  organization/state to carry their message through
  the ATN environment