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Scalable Service Discovery Requirements

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This draft outlines requirements for Scalable Service Discovery (SSD) across different networks, emphasizing efficiency, power consumption consideration, and seamless operation without changing network technology.

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Scalable Service Discovery Requirements

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  1. dnssd requirements draft-ietf-dnssd-requirements-03 Kerry Lynn <kerlyn@ieee.org> Stuart Cheshire <cheshire@apple.com> Marc Blanchet <marc.blanchet@viagenie.ca> Daniel Migault <mglt.biz@gmail.com> IETF 90, Toronto, 24 July 2014

  2. Changes since last draft • Two revisions since IETF 89: • Dave Thaler’s comments to the list • Tim Chown’s comparison against charter,meeting comments, etc. • Several REQs were re-worded or re-orderedfor clarity • Several missing REQs (from charter) were added: REQ7, REQ8, REQ9, REQ10, REQ14 • 2 week WGLC concluded 7/21 with little comment on the list

  3. REQ7 Scalable Service Discovery (SSD) must be capable of operating across networks that are not limited to a single link or network technology, including clients and services on non-adjacent links.

  4. REQ8 It is desirable that a user or device, when away from a site, is still able to discover services within that site, e.g., a user discovering services in their home network while remote from it.

  5. REQ9 SSD should operate efficiently in all networks, with particular consideration for potentially lossy or multicast-challenged wireless networks.

  6. REQ10 SSD should be considerate of networks where power consumption is a critical factor and, for example, nodes may be in a low power or sleeping state.

  7. REQ14 SSD should operate over existing networks (as described by use cases A-F above) without requiring changes to the network technology or deployment.

  8. Positions Expressed during WGLC • Layer 2 solutions intentionally ignored • The union of zero with anything is zero • Insecure services now discoverable • No printer will ever support authentication • ULAs provide security

  9. Next Steps • Confirm edits requested by Dave Thaler • Fix minor typographical nits likeremoving unused RFC2119 text • Send to IESG

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