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draft- ietf - v6ops -happy-eyeballs

draft- ietf - v6ops -happy-eyeballs. Trending towards success for better user experience IETF80 , Prague. Andrew Yourtchenko , Dan Wing. What’s the problem ?. 1) Getaddrinfo (): hostname => address list. 2) Try the addresses sequentially. What to do about it ?. Let the quickest win.

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draft- ietf - v6ops -happy-eyeballs

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  1. draft-ietf-v6ops-happy-eyeballs Trending towards success for better user experience IETF80, Prague Andrew Yourtchenko, Dan Wing

  2. What’s the problem ? 1) Getaddrinfo(): hostname => address list 2) Try the addresses sequentially

  3. What to do about it ? Let the quickest win

  4. Too many requests ? The winner takes it all Delay the slow one Demote on failure

  5. Changes (up to -01) • Became WG doc (-00) • Incorporated comments – thank you! Scott Brim, Rick Jones, StigVenaas, Erik Kline, BjoernZeeb, Matt Miller, Simon Perreault, Javier Ubillos • +: SRVrecords • + ref: draft-chen-mif-happy-eyeballs-extension • + ref: implementations • +: debug strawman (‘help me with my IPv6’)

  6. TODO • More than one type of addresses (RFC3484) • Selection or retry. • Need more implementation testing experience • “Hysteresis” problem • Delay the conn attempts, not name resolution -> do nothing for single-stack hosts • Prefer IPv6: Decay the P value towards 0 (# conns?) • Need pluggable ‘name-based connect’ API • Write separate draft. Where ?

  7. Reserved for your comments

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