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Lund-IEEE-Comms 2010

Robust Web Services in Heterogenous Military Networks

Lund et al

soa services service oriented tactical edge networking

@article{lund:ieee-comm2010,
  title={Robust Web Services in Heterogenous Military Networks},
  author={Ketil Lund and Espen Skjervold and Frank T. Johnsen and
          Trude Hafs\OE e and Anders Eggen},
  journal={{IEEE} Communications},
  year={2010},
  month={October},
  volume={48},
  number={10},
  pages={78--83},
}

[ Overview slides ]

NATO standardizing on service oriented architectures

  • Enable interoperability, competition
  • Loose coupling of applications
  • Not reasonable to expect everyone to use same software
    • Must define the interfaces

SOA most commonly realized through XML, SOAP, HTTP based protocols

In appling to disadvantaged tactical networks, must

  • Reduce amount and size of traffic generated
  • Eliminate end-to-end connectivity dependence
  • Manage network heterogeneity, render transparent

Compression alone cannot control volume enough, must also

  • Cache, reuse matching messages
  • Switch to pub/sub rather than request based paradigm
  • Support group dissemination, sharing messages
  • Filter, possibly transform content

Introduce store-and-forward proxy to mitigate end-to-end connectivity

  • Minor increase in computational cost
  • Requires higher level corruption and error control at endpoints

Heterogenous networks

  • Must manage differences in transmission & processing rates, buffers
  • Have to store-and-forward at application layer to manage underlying protocols

Proxy core functionality does not rely on inspecting message content

Additional functionality may read, manipulate messages at content level

  • Caching, reuse
  • Publish/subscribe
    • Proxy near service continually polls service
    • Proxy near client responds to polls with most recent response
    • Proxy near service only propagates changes
  • Diff propagation

Of note:

  • STANAG 4406 Annex C and E
  • WS-Notification, WS-Eventing
  • TACOMS tactical communications standard
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