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Allow servers to send a preferred address of each address family #2296

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merged 5 commits into from Jan 21, 2019
Merged

Allow servers to send a preferred address of each address family #2296

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7aecc40
Allow servers to send a preferred address of each address family
DavidSchinazi Jan 4, 2019
cf29b30
Simplify wire-format
DavidSchinazi Jan 8, 2019
68a4d3a
Clarify client response to preferred_address
DavidSchinazi Jan 14, 2019
5d1d276
Add text to clarify how the second preferred address interacts with m…
DavidSchinazi Jan 17, 2019
38f5380
Simplify interaction with migration using text from MT
DavidSchinazi Jan 18, 2019
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9 changes: 5 additions & 4 deletions draft-ietf-quic-transport.md
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Expand Up @@ -4103,13 +4103,14 @@ preferred_address (0x000d):
of this transport parameter is the PreferredAddress struct shown in
{{fig-preffered-address}}. This transport parameter is only sent by a server.
Servers MAY choose to only send a preferred address of one address family by
sending a zero-length address for the other family.
sending an all-zero address and port (0.0.0.0:0 or ::.0) for the other family.

~~~
struct {
opaque ipv4Address<0..2^8-1>;
opaque ipv6Address<0..2^8-1>;
uint16 port;
opaque ipv4Address[4];
uint16 ipv4Port;
opaque ipv6Address[16];
uint16 ipv6Port;
opaque connectionId<0..18>;
opaque statelessResetToken[16];
} PreferredAddress;
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