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Automotive Network eXchange (ANX)

Automotive Network eXchange (ANX). Les Cottrell Presentation given at ICFA-NTF at CERN March 1998 see http://www.aiag.org/ for more. What is ANX. TCP/IP based VPN or Extranet standards, competition Interconnects automotive industry trading partners (single link for trading partner)

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Automotive Network eXchange (ANX)

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  1. Automotive Network eXchange (ANX) Les Cottrell Presentation given at ICFA-NTF at CERN March 1998 see http://www.aiag.org/ for more \\pcbackup\users\cottrell\ietf\anx.ppt

  2. What is ANX • TCP/IP based VPN or Extranet • standards, competition • Interconnects automotive industry trading partners (single link for trading partner) • Characterized by service quality required for mission critical communications • Pilot started Dec-1-1997, completes summer 1998 \\pcbackup\users\cottrell\ietf\anx.ppt

  3. Conceptual Design IPSec gateway TP TP = trading partner CSP = Certified service provider CEPO = Certified Exchange Point Operator TP IPsec gateway CSP Overseer (Bellcore) CEPO CSP ISP CSP ISP TP TP TP TP \\pcbackup\users\cottrell\ietf\anx.ppt ISP

  4. Minimize finger pointing ANX Overseer ANX CSP ANX CSP ANX CEPO Trading Partner CSP Trading Partner \\pcbackup\users\cottrell\ietf\anx.ppt

  5. Requirements • 100 metrics in 8 categories • Business continuity, disaster recovery, security, customer care, trouble handling, interoperability, reliability • Performance metrics • Primary: minimal network congestion and efficient and predictable routing. • Others: latency, packet/cell loss, circuit/link utilization, throughput, and efficient exchange of routing information \\pcbackup\users\cottrell\ietf\anx.ppt

  6. Performance metrics • Active monitoring • Black box approach to measure metrics • Monitor file transfers • User metrics include thruput, delay and loss \\pcbackup\users\cottrell\ietf\anx.ppt

  7. Pilot performance metrics • Throughput • measured thruput >= half of access link bandwidth • Test files 30+ Mbytes • MTU 512 bytes • sliding average over several tests \\pcbackup\users\cottrell\ietf\anx.ppt

  8. Pilot performance metrics • Throughput • Packet loss • PLR = (# sent - # necessary)/#sent • target 0.03% • use 30+MB files with 512Byte MTU • calculations averaged over large enough set of recent trials so results meaningful • # sent > 100/PLR \\pcbackup\users\cottrell\ietf\anx.ppt

  9. Pilot performance metrics • Throughput • Packet loss • Delay • 1 Mbyte file size, 512 Byte MTU • sliding window average over several tests • 90% of transfers must meet delay requirement \\pcbackup\users\cottrell\ietf\anx.ppt

  10. Performance Test Tool ANX Transmitter: responsible for all performance measurement tasks & logging Receiver Performs passive opens, discards received data after acknowledging via TCP \\pcbackup\users\cottrell\ietf\anx.ppt

  11. TP TP Measurement Architecture CSP Automotive Trading Partners CEPO Overseer CSP Router Performance test tool \\pcbackup\users\cottrell\ietf\anx.ppt

  12. Security - Public Key Infrastructure Trading Partner CA Trading Partner CA Trading Partner CA ANX CSP CA ANX CSP CA ANX Overseer CA Trading Partner CA Trading Partner CA ANX CSP CA ANX CSP CA Trading Partner CA Trading Partner CA LEGEND = Cross-Certification CA = Certificate Authority 14 \\pcbackup\users\cottrell\ietf\anx.ppt

  13. Security - Responsibilities ANX public key infrastructure supports network-level security between TP IPsec gateways Trading Partner Applications Trading Partner Applications ANX public key infrastructure IPsec Gateway IPsec Gateway Security for individual TP applications is outside of ANX service scope \\pcbackup\users\cottrell\ietf\anx.ppt

  14. Trouble Handling ANX Overseer 4 4 4 5 (Rarely) 5 (Rarely) ANX CEPO 3 3 3 ANX CSP ANX CSP 2 2 1 Trading Partner Trading Partner \\pcbackup\users\cottrell\ietf\anx.ppt

  15. Legal Aspects • CSP signs contract with ANX Overseer & gets registered • registration results in application -> assessment • if successful results in verification • verification repeated at regular intervals • if fail, get 30 days to fix • if not fixed -> probation • if fail TP asked to change CSP in 90 days CSP Overseer (Bellcore) \\pcbackup\users\cottrell\ietf\anx.ppt

  16. CSP Legal Aspects • Each TP contracts with ANX Overseer & with its CSP • Each CSP contracts with Overseer & CEPO • CEPO contracts with Overseer TP Overseer (Bellcore) CEPO \\pcbackup\users\cottrell\ietf\anx.ppt

  17. Legal Stuff • Services are defined in contracts by guarantees • Termination is provided to provide graceful exits • Confidentiality required for Overseer reporting • Liability limitations (reduce fright factor in joining up) • Trying to head off litigation, have an escalation process, working on arbitration process \\pcbackup\users\cottrell\ietf\anx.ppt

  18. Flow of Money AiAG ANX Overseer Trading Partner Trading Partner ANX CSP ANX CSP ANX CEPO • Ongoing ANX Pilot feedback on costs \\pcbackup\users\cottrell\ietf\anx.ppt

  19. Impacts • Establishes certification of ISPs • Implements multi-service provider VPNs • Benchmarks ISP service levels • Accelerates maturity of Ipsec • Expect service charges to be about double that for public Internet \\pcbackup\users\cottrell\ietf\anx.ppt

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