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add an error code for rejecting new connections #1137

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merged 3 commits into from
Mar 2, 2018
Merged

add an error code for rejecting new connections #1137

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ff9ae90
add a SERVER_BUSY error code
marten-seemann Feb 23, 2018
a8f0331
Mike's review
marten-seemann Mar 2, 2018
eab5b3e
Add SERVER_BUSY to IANA table
martinthomson Mar 2, 2018
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12 changes: 10 additions & 2 deletions draft-ietf-quic-transport.md
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Expand Up @@ -926,8 +926,11 @@ server continues below.

If the packet is an Initial packet fully conforming with the
specification, the server proceeds with the handshake ({{handshake}}).
This commits the server to the version that the client
selected.
This commits the server to the version that the client selected.

If a server isn't currently accepting any new connections, it SHOULD send a
Handshake packet containing a CONNECTION_CLOSE frame with error code
SERVER_BUSY.

If the packet is a 0-RTT packet, the server MAY buffer a limited
number of these packets in anticipation of a late-arriving Initial
Expand Down Expand Up @@ -3676,6 +3679,10 @@ INTERNAL_ERROR (0x1):
: The endpoint encountered an internal error and cannot continue with the
connection.

SERVER_BUSY (0x2):

: The server is currently busy and does not accept any new connections.

FLOW_CONTROL_ERROR (0x3):

: An endpoint received more data than it permitted in its advertised data limits
Expand Down Expand Up @@ -3928,6 +3935,7 @@ the range from 0xFE00 to 0xFFFF.
|:------------|:--------------------------|:------------------------------|:----------------|
| 0x0 | NO_ERROR | No error | {{error-codes}} |
| 0x1 | INTERNAL_ERROR | Implementation error | {{error-codes}} |
| 0x2 | SERVER_BUSY | Server currently busy | {{error-codes}} |
| 0x3 | FLOW_CONTROL_ERROR | Flow control error | {{error-codes}} |
| 0x4 | STREAM_ID_ERROR | Invalid stream ID | {{error-codes}} |
| 0x5 | STREAM_STATE_ERROR | Frame received in invalid stream state | {{error-codes}} |
Expand Down