Reliable Server Pooling Implementations

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Reliable Server PoolingImplementations

• Presenter Aron Silverton
• Email Aron.J.Silverton_at_Motorola.com
• IETF 60
• San Diego, California
• 2004-08-05

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Agenda

• Protocol Implementations
• University of Essen-Duisburg University of
  Applied Sciences-Muenster
• Motorola, Inc. Two implementations
• Tool Support
• Ethereal
• RSerPool Interoperability
• Comments and Discussion

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Universities of Essen-Duisburg Applied
Sciences-Muenster

• Goal
• Complete, open source, prototype implementation
  of the RSerPool architecture the rsplib
  prototype.
• Status
• ASAP fully implemented
• Pool policies implemented (draft-tuexen-rserpool-p
  olicies-00.txt)
• Nameserver with ENRP nearly complete
• Uses SCTP socket API
• Example application (echo service)
• Compliant with current drafts

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Universities of Duisburg-Essen Applied
Sciences, Muenster (cont.)

• Contact
• Thomas Dreibholz, University of Essen at
  Duisburg, Germany
• dreibh_at_exp-math.uni-essen.de
• Michael Tuexen, University of Applied Sciences -
  Muenster, Germany
• michael.tuexen_at_fh-muenster.de

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Universities of Duisburg-Essen Applied
Sciences, Muenster (cont.)

• Links
• For more information about the implementation,
  see
• http//tdrwww.exp-math.uni-essen.de/dreibholz/rser
  pool/ and
• http//www.sctp.de/rserpool.html
• An introduction to the design and implementation
  of the rsplib prototype is available at
• http//tdrwww.exp-math.uni-essen.de/dreibholz/rser
  pool/index.html

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Motorola(1)

• Goal
• Full RSerPool implementation in a user-land
  library running on Linux, Solaris, and FreeBSD
• Status
• ASAP implemented (minus control channel, TCP or
  UDP support, multicast, weighted round robin,
  etc.)
• Nameserver (without ENRP, server announce,
  multicast, etc.)
• Example application (Registration test utility)
• Uses open-source SCTP from www.sctp.org

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Motorola(1) (cont.)

• Timeline
• Soon Support for kernel SCTP under Linux and
  FreeBSD
• Soon Implementation of ENRP with namespace
  auditing and resynchronization
• Future Core functionality of all drafts

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Motorola(1) (cont.)

• Contact
• Qiaobing Xie, Motorola, Inc., Global
  Telecommunications Solutions Sector
• qiaobing.xie_at_motorola.com
• Links
• Implementation is currently internal to Motorola

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Motorola(2)

• Goal
• Complete RSerPool implementation and exhaustive
  SDL validation of the protocols
• Support for Linux, Solaris, FreeBSD, VxWorks,
  others
• Non-distributable binaries for interoperability
  testing
• Possible release of MSCs and SDL models

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Motorola(2) (cont.)

• Status
• Generating many MSCs for all protocol behaviors
• SDL modeling of all protocols and components
  underway
• Timeline
• Completion by end of 1Q05

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Motorola(2) (cont.)

• Contact
• Aron Silverton, Motorola Labs, Networks and
  Systems Research
• aron.j.silverton_at_motorola.com
• Links
• If and when SDL is released publicly

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Ethereal Packet Sniffer

• Support for ASAP and ENRP dissectors in all
  current (CVS) and future versions of Ethereal
• Contact
• Michael Tuexen, University of Applied Sciences -
  Muenster, Germany
• michael.tuexen_at_fh-muenster.de
• Links
• http//www.ethereal.com

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Interoperability

• First informal interoperability testing held
  Tuesday, 8/3/2004
• Universities of Essen-Duisburg Applied
  Sciences-Muenster and Motorola(1)
• Testing covered ASAP and a single Pool Registrar
• First official interoperability testing
  tentatively scheduled for 2005
• To coincide with the next SCTP bakeoff (2005-09)

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Comments?