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happy-eyeballs-timeout-ms.d: polish the wording

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Reported-by: Josh Soref
Fixes #7433
Closes #7542
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Daniel Stenberg 2021-08-08 19:02:02 +02:00
parent 65c1b8ee17
commit a2e29f0731
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1 changed files with 5 additions and 5 deletions
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docs/cmdline-opts/happy-eyeballs-timeout-ms.d
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@ -4,11 +4,11 @@ Help: Time for IPv6 before trying IPv4
Added: 7.59.0
Category: connection
---
Happy eyeballs is an algorithm that attempts to connect to both IPv4 and IPv6
addresses for dual-stack hosts, preferring IPv6 first for the number of
milliseconds. If the IPv6 address cannot be connected to within that time then
a connection attempt is made to the IPv4 address in parallel. The first
connection to be established is the one that is used.
Happy Eyeballs is an algorithm that attempts to connect to both IPv4 and IPv6
addresses for dual-stack hosts, giving IPv6 a head-start of the specified
number of milliseconds. If the IPv6 address cannot be connected to within that
time, then a connection attempt is made to the IPv4 address in parallel. The
first connection to be established is the one that is used.
The range of suggested useful values is limited. Happy Eyeballs RFC 6555 says
"It is RECOMMENDED that connection attempts be paced 150-250 ms apart to