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Internet Protocol Aviation Usage by mudoc123

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									Multi-Domained, Multi-Homed
       Mobile Networks
  To Join to the Mobile Platform Internet (MPI)
              mailing list, E-mail to:
            MPI-subscribe@multicasttech.com

      Terry Davis – Boeing (terry.l.davis@boeing.com)
  Will Ivancic – NASA Glenn (william.d.ivancic@nasa.gov)

                                                           1
            Common Sectors
•   Aviation
•   Maritime
•   Trains
•   Trucking (Shipping)
•   Automotive
•   Others ???


                             2
                                         How Do You Select and
                                       Implement the Routing Path?




        High Speed SatCom Network                           Entertainment                        Low Speed SatCom Network
        •   Globally Available                                                                   •   Globally Available
        •   Affected by Weather                                                                  •   Low Bandwidth
        •   Higher Bandwidth                             Mobile Network                          •   High Latency
        •   High Latency                                                                         •   Very High Cost
                                                     Command and
        •   High Cost                                   Control      Operations                  •   Redundant




                                                                   Low Rate VHF
                                                                   • Reliable                           High Speed Terrestrial
                                                                   • Low Latency                        •   Not Available when Mobile
   High Speed LOS Network                                                                               •   High Bandwidth
   •   Globally Available                                                                               •   Low latency
   •   High Bandwidth                                                                                   •   Lower Cost
   •   Low Latency                                            Internet
   •   Lower Security
   •   Moderate Cost


                                  Destination Network                                         Destination Network
                                                                                                (for Operations)
                                   (for Entertainment)
                                                                               Destination Network
How do you decide which path the data should take?                          (for Command & Control)
How do you cause the network(s) to route the data via this path?                                                               3
         Aviation Specific Issues
• Safety of Life / Safety of Flight
   – Time-Critical command and control for Air Traffic Control
      • Fast convergence time is essential!
• New radio link technologies are “uncertified” for Air Traffic
  Control / Air Operations Communications (ATC/AOC)
• Regulatory requirements force network design
• Three independent network domains
   – (required for regulatory, QoS, & security)
   – Passenger & In-Flight-Entertainment
   – Airline Operations
   – Air Traffic Control
• Service providers may be authorized to carry one, two, or all
  services.
• ATC will be a “closed network”
                                                             4
• Multiple security and authentication architectures
Airplane Communications




                          5
           In-Air Communication
• Multiple networks with varying criteria for utilizing
  different links
   – Aircraft Control Domain
   – Airline Information Services Domain
   – Passenger Information and Entertainment Services
     Domain
• Often multiple links will be active to the same
  domain simultaneously.
• May need to have connectivity to 10 or more
  ISPs depending on what airports one flies into
   – Need to autonomously connect to service providers
   – Each airport controls the ISP contracts
                                                          6
         ISO Aeronautics Telecommunication Network
          (ATN) Island Routing Domain Confederation
                                                               Mobile RD
               Mobile RD
  Another
 ATN Island                          ATN Backbone RDC
                           ATN TRD                    ATN TRD

   Mobile RD
                                     ATN Island RDC
                        ATN TRD
                                                ATN ERD


                   ATN ERD                     OSI IDRP Routing
                                                   • Controlled topology to ensure
                                                   rapid route prorogation
                                               Routing Protocols requires
ERD – End Routing Domain
                                              ownership/coordination of
RD – Routing Domain
                                              infrastructure
RDC – Routing Domain Confederation
                                                   • Injecting routes          7
TRD – Transit Routing Domain
                                                   • Not deployed due to cost
                      E-BGP Control
BGP/OSPF for Air Traffic requiresthe
                    If you don’t own
                                          configuration with each
                                              infrastructure, you
                                          Autonomous Systems.
                                              probably will not be
                                            This is a scalability
                Air    Ground              allowed to inject routes!
                                                  problem.


     BGP                       BGP/OSPF

                                                     OSPF
     Mobile-1
                                                    AREA 1
                               BGP/OSPF
     BGP
                                                                       OSPF
     Mobile-2
                                                                   AREA 0
                               BGP/OSPF

                                                     OSPF
                                                    AREA N
     BGP
                               BGP/OSPF
     Mobile-N



  This may work for ATC, but not for AOC or Passenger Services                8
(AOC is a closed network and will not propagate routes to the world)
            Multiplexing at the Radio
                                                            ATC
  ATC
                                                           NEMO-1
NEMO-1            MUX             Satellite
                                                             HA




                                                            AOC
  AOC
                                                           NEMO-2
NEMO-2            MUX             WiFi
                                                             HA




                                                         Passenger
Passenger
                                                           NEMO-3
NEMO-3            MUX             VHF
                                                             HA



                           If one requires a separate nemo
                        router for each domain, then, failure
                        to Multiplex requires a radio for each
                                       interface!                    9
Independent Systems




                      10
                                                    SATCOM

                Communication      Multiplexing     AERO-1

                 and Display
                                   at the Router   SATCOM
                                                   AERO-HH
                        Mobile
   Air Traffic         Network 1                       VHF
  Management                                       Voice/DATA
      LAN
                                       Mobile
                                       Router          HF
                    Mobile                         Voice/DATA

Operations         Network 2             NEM0-1
   LAN                                   NEMO-2    INMARSAT
(Avionics)                                          Swift 64
                                         NEMO-3
                                                     High-Rate
                                                      Satellite
             Sensor Controller
             (Optional Display)
                                                     WiFi Max

                        Mobile
                       Network 3                    GateLink


                Passenger                             Cellular
                 Services

                                                    Future Links
                                                             11
        Global HAHA for NEMO


          Primary
        VPN
                        X              VPN
                                     Endpoint
                                                    Secondary
                                                   Home Agent
      Endpoint
        Home Agent




                            Secondary Home Agent
                            provides pseudo route optimization
                            which is useful over long distances

Beware of VPN tunnels.
If security is not considered up front, it may negate route optimization!    12
                       Global HaHa
• Draft allows for
   – Distribute HAs at IP layer
      • HA to HA communications at layer 3 to get rid of home link in
        configurations where it is not needed
   – MIP proxy for local mobility management
      • to allow a mobile router to bind locally as it is roaming far away
        from any of its own home agents
   – Pseudo route optimization in the infrastructure
• No Security
• Concerns
   – How is routing accomplished to get to appropriate HA?
   – How many home agents will aviation need?
   – How fast can one switch to a new home agent?        13
Monami6 for Aeronautics




                          14
      Multiple Links to Aircraft
• Failover for safety-of-life critical control
  traffic
• Separation of governmental control, airline
  corporate, and passenger network traffic
  – Differing priorities on same link
  – Differing link forwarding selection according to
    policy



                                                  15
                    Policy-Based Routing,
                        All Links Active

P-DATA
             Mobile                  High speed link                       P-DATA
             Router P-DATA                              P-DATA
 AOC
                                                                  Home
             int1
                                                                  Agent    P-DATA
 ATC                                 Low latency link
                               AOC                      AOC
P-DATA                  int2                                                ATC
                                     Reliable link
                 int3
                         ATC                             ATC                AOC
       Routing                                                   Routing
        Policy                                                    Policy




                                                                                    16
                  Policy-Based Routing,
                   Critical Link Active

P-DATA      Mobile                   High speed link
            Router         P-DATA
 AOC                                                          Home
             int1                                             Agent
 ATC                                 Low latency link
                               AOC
P-DATA                  int2                                            ATC
                                     Reliable link
                 int3
                         ATC                            ATC
       Routing                                                Routing
        Policy                                                 Policy




                                                                              17
                 Policy-Based Routing,
                 Passengers Link Active

P-DATA                               High speed link
            Mobile                                                      P-DATA
            Router         P-DATA   P-DATA      AOC     ATC
 AOC                                                          Home
             int1                                             Agent     P-DATA
 ATC                                 Low latency link


P-DATA                  int2                                             AOC
                                     Reliable link
                 int3
                                                                         ATC
       Routing                                                Routing
        Policy                                                 Policy




                                                                                 18
   Multiple Care-of Addresses
• Some governments provide VHF/UHF air-
  to-ground network infrastructure
• Multiple commercial service providers for
  satellite and other links

             Multiple HAs
• Removes potential single-point-of-failure
  for safety-of-life traffic
                                              19
           Within Monami6 ...
• Assume an aircraft has a NEMO MR with X links
  and care-of addresses, and Y geographically
  distributed home agents
  – X*Y bidirectional tunnels
  – But only a few active at one time
• At MR, downlink tunnel selection (CoA and HA
  pair) based on policy for traffic class of each
  packet
• At HA, uplink tunnel selection (CoA) based on
  policy
• Different security mechanisms for each tunnel
  based on policy                                   20
                 Desires
• Multiple CoA option works for NEMO
  – GOOD based on draft-ietf-monami6-
    multiplecoa-00
• Support use of flow binding option for
  NEMO HA-MR tunnel selection
  – draft-soliman-monami6-flow-binding-02 is
    currently worded very mobile-node (not
    NEMO) centric, although seems to work well
    for NEMO too
                                                 21
Recommendations / Desires




                            22
   Recommendations / Desires
• Need Route Optimization for Large Mobile
  Platforms that move over large geographical
  areas.
  – Global HAHA is a potential
  – Other proposals also should be considered
     • Including work being done in IRTF MOBOPTS
• It is highly desirable to have multiple NEMOs in
  a single router (multi-domained nemos)
  – What are the security implications of this?
• Need to examine Security Architecture relative
  to mobility mechanisms
  – If we are not careful, security may undo route
    optimization.
  – Ensure the IKEv2 and revised IPsec architecture are
    considered                                          23
   Recommendations / Desires
• Aspects of MANET Autoconfiguration may be
  applicable to traditional routing for large mobile
  systems regarding the air/ground interface
  addressing.
• MONAMI6 currently appears to be handling the
  needs of large mobile platforms.
• It would be advantageous if the filtering
  mechanisms and policy-base routing for
  monami6 worked with a hybrid
  nemo/mip/traditional routing configurations.

                                                       24
  Non-IETF (?) Issues or Not?
• Automated access to networks –
  particularly access to radio systems
  (Internet Docking for Mobile Networks)
• Implementation solutions are a
  combination of architecture, protocol and
  policy. Is it appropriate to have an
  “Informational document” for large mobile
  platforms?

                                              25
        Mobile Platform Internet
              Mailing List
• To Join to the mailing list, E-mail to:
  – MPI-subscribe@multicasttech.com




                                            26

								
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