El 15 ag 2017, a les 3:25, Mikael Abrahamsson <swm...@swm.pp.se> va escriure: > Right now RFC6555bis proposes a 50ms head start for IPv6 (DNS lookup+TCP > init), which IPv6 will lose if the DNS resolver AAAA is expired and the A is > cached, and the authoritative DNS server is far away TTL-wise.
If it's a commonly-used name, isn't this a one-time event, though? The happy eyeballs client asks for A and AAAA, gets A because it was in the cache, but AAAA also winds up in the cache, and then because it's a commonly used name, neither record ever goes stale again.
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