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IETF 78 - Alto - Server Discovery
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IETF 78 - Alto - Server Discovery

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Transcript

  • 1. ALTO Server Discovery draft-song-alto-server-discovery-03 H. Song G. Garcia M. Tomsu V. Pascual Y. Wang
  • 2. Changes • Delete text about the application-centric deployment scenario • Align with the ALTO protocol draft and reference to 3rd party discovery draft
  • 3. Deployment • ALTO servers are deployed within each ISP with “my internet view” • Application clients may cross multiple ISPs
  • 4. Discovery Clients • Peers – Discover its own ALTO server, communicate with the ALTO server itself – Discover its own ALTO server and report to the resource directory (e.g. Tracker), resource directory entity will communicate with the ALTO server on behalf of the peer • Resource Directory Entity – Discovery the ALTO servers for its peers (cache the [peer/ALTO server] map locally) • Tracker • Super peer – Using public address of the requesting peer to determine its domain
  • 5. Mechanisms • Different mechanisms can be used in different scenarios – DHCP • reuse DHCP option in Geopriv for access domain name – DNS – Provisioning in application – Manual configuration – Multicast and broadcast – caching
  • 6. Security Considerations • Whether ALTO server allowing access from IP addresses out of this ISP may impact the discovery – If not, do not need ALTO discovery client in the Tracker or super peer
  • 7. Next Step • Shall we adopt it as a WG item?
  • 8. Thank you!