Internet Assigned Numbers Authority
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QUIC
Created
2021-02-11
Last Updated
2025-09-23
Available Formats
[IMG]
XML [IMG]
HTML [IMG]
Plain text
Registries Included Below
??QUIC Versions
??QUIC Transport Parameters
??QUIC Frame Types
??QUIC Transport Error Codes
QUIC Versions
Expert(s)
Jana Iyengar, Ian Swett, Martin Thomson
Reference
[RFC9000]
Available Formats
[IMG]
CSV
Range Registration Procedures
provisional Expert Review
provisional registration Date field update First Come First Served
permanent Specification Required
first unassigned codepoint Standards Action
value 0x?a?a?a?a Reserved
Value Status Specification Date Change Controller Contact Notes
0x00000000 permanent [RFC9000] 2021-02-11 IETF [QUIC_WG] Reserved for Version Negotiation
0x00000001 permanent [RFC9000] 2021-02-11 IETF [QUIC_WG]
0x51303433 provisional 2021-10-15 Google [Google] Google QUIC Q043
0x51303436 provisional 2021-10-15 Google [Google] Google QUIC Q046
0x51303530 provisional 2021-10-15 Google [Google] Google QUIC Q050
0x6b3343cf permanent [RFC9369] 2022-12-16 IETF [QUIC_WG]
0x709a50c4 provisional [RFC9369] 2022-12-16 IETF [QUIC_WG] QUIC v2 draft codepoint
QUIC Transport Parameters
Expert(s)
Jana Iyengar, Ian Swett, Martin Thomson
Reference
[RFC9000]
Available Formats
[IMG]
CSV
Range Registration Procedures
provisional Expert Review
provisional registration Date field update First Come First Served
permanent, 0x00-0x3f Standards Action or IESG Approval
permanent, greater than 0x3f Specification Required
first unassigned codepoint Standards Action
values 31 * N + 27 (for integer values of N) Reserved
Value Parameter Name Status Specification Date Change Contact Notes
Controller
0x00 original_destination_connection_id permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x01 max_idle_timeout permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x02 stateless_reset_token permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x03 max_udp_payload_size permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x04 initial_max_data permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x05 initial_max_stream_data_bidi_local permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x06 initial_max_stream_data_bidi_remote permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x07 initial_max_stream_data_uni permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x08 initial_max_streams_bidi permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x09 initial_max_streams_uni permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x0a ack_delay_exponent permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x0b max_ack_delay permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x0c disable_active_migration permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x0d preferred_address permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x0e active_connection_id_limit permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x0f initial_source_connection_id permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x10 retry_source_connection_id permanent [RFC9000, Section 18.2] 2021-02-11 IETF [QUIC_WG]
0x11 version_information permanent [RFC9368] 2022-12-16 IETF [QUIC_WG]
0x20 max_datagram_frame_size permanent [RFC9221] 2021-10-20 IETF [QUIC_WG]
0x173e discard provisional [https://github.com/quicwg/base-drafts/wiki/Quantum-Readiness-test] 2022-06-02 [David_Schinazi] [David_Schinazi] Receiver silently
discards.
Used to carry
0x26ab google handshake message provisional 2022-11-01 Google [Google] Google internal
handshake message
0x2ab2 grease_quic_bit permanent [RFC9287] 2022-07-13 IETF [QUIC_WG]
0x3127 initial_rtt provisional 2021-10-20 Google [Google] Initial RTT in
microseconds
Google connection
0x3128 google_connection_options provisional 2021-10-20 Google [Google] options for
experimentation
0x3129 user_agent provisional 2021-10-20 Google [Google] User agent string
(deprecated)
Google QUIC version
0x4752 google_version provisional 2021-10-20 Google [Google] downgrade
prevention
Deprecated; use
0xff73db version_information_draft provisional [draft-ietf-quic-version-negotiation-13] 2025-03-21 IETF [QUIC_WG] version_information
instead
0x219bbcd0 google_debug_1 provisional 2025-09-23 [Google] [Google]
0xff04de1b min_ack_delay provisional [draft-ietf-quic-ack-frequency-07] 2023-10-27 Mirja K¨¹hlewind [Mirja_Kuhlewind]
0x0f739bbc1b666d05 enable_multipath provisional [draft-ietf-quic-multipath-05, Section 3] 2023-07-26 Yanmei Liu [Yanmei_Liu]
0x0f739bbc1b666d06 enable_multipath(-06) provisional [draft-ietf-quic-multipath-06, Section 3] 2023-11-03 Yanmei Liu [Yanmei_Liu]
0x0f739bbc1b666d0d initial_max_path_id provisional [draft-ietf-quic-multipath-15, Section 2.1] 2025-07-09 Yanmei Liu [Yanmei_Liu]
0x4143414213370002 bdp_frame provisional [draft-misell-quic-bdp-token-02] 2024-01-24 Q Misell [Q_Misell]
QUIC Frame Types
Expert(s)
Jana Iyengar, Ian Swett, Martin Thomson
Reference
[RFC9000]
Available Formats
[IMG]
CSV
Range Registration Procedures
provisional Expert Review
provisional registration Date field update First Come First Served
permanent, 0x00-0x3f Standards Action or IESG Approval
permanent, greater than 0x3f Specification Required
first unassigned codepoint Standards Action
Value Frame Type Name Status Specification Date Change Contact Notes
Controller
0x00 PADDING permanent [RFC9000, Section 19.1] 2021-02-11 IETF [QUIC_WG]
0x01 PING permanent [RFC9000, Section 19.2] 2021-02-11 IETF [QUIC_WG]
0x02-0x03 ACK permanent [RFC9000, Section 19.3] 2021-02-11 IETF [QUIC_WG]
0x04 RESET_STREAM permanent [RFC9000, Section 19.4] 2021-02-11 IETF [QUIC_WG]
0x05 STOP_SENDING permanent [RFC9000, Section 19.5] 2021-02-11 IETF [QUIC_WG]
0x06 CRYPTO permanent [RFC9000, Section 19.6] 2021-02-11 IETF [QUIC_WG]
0x07 NEW_TOKEN permanent [RFC9000, Section 19.7] 2021-02-11 IETF [QUIC_WG]
0x08-0x0f STREAM permanent [RFC9000, Section 19.8] 2021-02-11 IETF [QUIC_WG]
0x10 MAX_DATA permanent [RFC9000, Section 19.9] 2021-02-11 IETF [QUIC_WG]
0x11 MAX_STREAM_DATA permanent [RFC9000, Section 19.10] 2021-02-11 IETF [QUIC_WG]
0x12-0x13 MAX_STREAMS permanent [RFC9000, Section 19.11] 2021-02-11 IETF [QUIC_WG]
0x14 DATA_BLOCKED permanent [RFC9000, Section 19.12] 2021-02-11 IETF [QUIC_WG]
0x15 STREAM_DATA_BLOCKED permanent [RFC9000, Section 19.13] 2021-02-11 IETF [QUIC_WG]
0x16-0x17 STREAMS_BLOCKED permanent [RFC9000, Section 19.14] 2021-02-11 IETF [QUIC_WG]
0x18 NEW_CONNECTION_ID permanent [RFC9000, Section 19.15] 2021-02-11 IETF [QUIC_WG]
0x19 RETIRE_CONNECTION_ID permanent [RFC9000, Section 19.16] 2021-02-11 IETF [QUIC_WG]
0x1a PATH_CHALLENGE permanent [RFC9000, Section 19.17] 2021-02-11 IETF [QUIC_WG]
0x1b PATH_RESPONSE permanent [RFC9000, Section 19.18] 2021-02-11 IETF [QUIC_WG]
0x1c-0x1d CONNECTION_CLOSE permanent [RFC9000, Section 19.19] 2021-02-11 IETF [QUIC_WG]
0x1e HANDSHAKE_DONE permanent [RFC9000, Section 19.20] 2021-02-11 IETF [QUIC_WG]
0x1f IMMEDIATE_ACK provisional [draft-ietf-quic-ack-frequency-07] 2023-10-27 Mirja [Mirja_Kuhlewind]
K¨¹hlewind
0x30-0x31 DATAGRAM permanent [RFC9221] 2021-10-20 IETF [QUIC_WG]
0xaf ACK_FREQUENCY provisional [draft-ietf-quic-ack-frequency-07] 2023-10-27 Mirja [Mirja_Kuhlewind]
K¨¹hlewind
0x15228c00-0x15228c01 PATH_ACK provisional [draft-ietf-quic-multipath-15, Section 2023-07-26 Yanmei Liu [Yanmei_Liu]
4.1]
0x15228c05 PATH_ABANDON provisional [draft-ietf-quic-multipath-15, Section 2023-07-26 Yanmei Liu [Yanmei_Liu]
4.2]
0x15228c06 PATH_STATUS provisional [draft-ietf-quic-multipath-05, Section 2023-07-26 Yanmei Liu [Yanmei_Liu]
8.3]
0x15228c07 PATH_STATUS_BACKUP provisional [draft-ietf-quic-multipath-15, Section 2023-11-03 Yanmei Liu [Yanmei_Liu]
4.3]
0x15228c08 PATH_STATUS_AVAILABLE provisional [draft-ietf-quic-multipath-15, Section 2023-11-03 Yanmei Liu [Yanmei_Liu]
4.3]
0x15228c09 PATH_NEW_CONNECTION_ID provisional [draft-ietf-quic-multipath-15, Section 2025-07-09 Yanmei Liu [Yanmei_Liu]
4.4]
0x15228c0a PATH_RETIRE_CONNECTION_ID provisional [draft-ietf-quic-multipath-15, Section 2025-07-09 Yanmei Liu [Yanmei_Liu]
4.5]
0x15228c0c MAX_PATH_ID provisional [draft-ietf-quic-multipath-15, Section 2025-07-09 Yanmei Liu [Yanmei_Liu]
4.6]
0x15228c0d PATHS_BLOCKED provisional [draft-ietf-quic-multipath-15, Section 2025-07-09 Yanmei Liu [Yanmei_Liu]
4.7]
0x15228c0e PATH_CIDS_BLOCKED provisional [draft-ietf-quic-multipath-15, Section 2025-07-09 Yanmei Liu [Yanmei_Liu]
4.7]
QUIC Transport Error Codes
Expert(s)
Jana Iyengar, Ian Swett, Martin Thomson
Reference
[RFC9000]
Available Formats
[IMG]
CSV
Range Registration Procedures
provisional Expert Review
provisional registration Date field update First Come First Served
permanent, 0x00-0x3f Standards Action or IESG Approval
permanent, greater than 0x3f Specification Required
first unassigned codepoint Standards Action
Value Code Description Status Specification Date Change Contact Notes
Controller
0x00 NO_ERROR No error permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
0x01 INTERNAL_ERROR Implementation permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
error
0x02 CONNECTION_REFUSED Server refuses permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
a connection
0x03 FLOW_CONTROL_ERROR Flow control permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
error
0x04 STREAM_LIMIT_ERROR Too many permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
streams opened
Frame received
0x05 STREAM_STATE_ERROR in invalid permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
stream state
0x06 FINAL_SIZE_ERROR Change to permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
final size
0x07 FRAME_ENCODING_ERROR Frame encoding permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
error
Error in
0x08 TRANSPORT_PARAMETER_ERROR transport permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
parameters
Too many
0x09 CONNECTION_ID_LIMIT_ERROR connection IDs permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
received
Generic
0x0a PROTOCOL_VIOLATION protocol permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
violation
0x0b INVALID_TOKEN Invalid Token permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
received
0x0c APPLICATION_ERROR Application permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
error
CRYPTO data
0x0d CRYPTO_BUFFER_EXCEEDED buffer permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
overflowed
Invalid packet
0x0e KEY_UPDATE_ERROR protection permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
update
Excessive use
0x0f AEAD_LIMIT_REACHED of packet permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
protection
keys
No viable
0x10 NO_VIABLE_PATH network path permanent [RFC9000, Section 20] 2021-02-11 IETF [QUIC_WG]
exists
Error
0x11 VERSION_NEGOTIATION_ERROR negotiating permanent [RFC9368] 2022-12-16 IETF [QUIC_WG]
version
0x0100-0x01ff CRYPTO_ERROR TLS alert code permanent [RFC9000, Section 20] 2021-05-18 IETF [QUIC_WG]
Path abandoned
0x004150504142414e APPLICATION_ABANDON_PATH at the provisional [draft-ietf-quic-multipath-15, 2025-07-09 Yanmei Liu [Yanmei_Liu]
application's Section 4.2.1]
request
Path abandoned
due to no [draft-ietf-quic-multipath-15,
0x004e4f5f4349445f NO_CID_AVAILABLE_FOR_PATH available provisional Section 4.2.1] 2025-07-09 Yanmei Liu [Yanmei_Liu]
connection IDs
for the path
Path abandoned
due to [draft-ietf-quic-multipath-15,
0x0052534c494d4954 PATH_RESOURCE_LIMIT_REACHED resource provisional Section 4.2.1] 2025-07-09 Yanmei Liu [Yanmei_Liu]
limitations in
the transport
Path abandoned
0x00554e5f494e5446 APPLICATION_ABANDON_PATH due to provisional [draft-ietf-quic-multipath-15, 2025-07-09 Yanmei Liu [Yanmei_Liu]
unstable Section 4.2.1]
interfaces
Multipath [draft-ietf-quic-multipath-05,
0x1001d76d3ded42f3 MP_PROTOCOL_VIOLATION protocol provisional Section 9] 2023-07-26 Yanmei Liu [Yanmei_Liu]
violation
The BDP token
0x4143414213370002 BDP_TOKEN_ERROR received from provisional [draft-misell-quic-bdp-token-02] 2024-01-24 Q Misell [Q_Misell]
the client is
invalid
Contact Information
ID Name Contact URI Last Updated
[David_Schinazi] David Schinazi mailto:dschinazi.ietf&gmail.com 2022-06-02
[Google] Google mailto:quic-iana&google.com 2025-09-23
[Mirja_Kuhlewind] Mirja K¨¹hlewind mailto:ietf&kuehlewind.net 2023-10-27
[Q_Misell] Q Misell mailto:q&as207960.net 2024-01-24
[QUIC_WG] QUIC working group mailto:quic&ietf.org
[Yanmei_Liu] Yanmei Liu mailto:miaoji.lym&alibaba-inc.com 2025-07-09
Licensing Terms
Presently we were in a very dark road, and at a point where it dropped suddenly between steep sides we halted in black shadow. A gleam of pale sand, a whisper of deep flowing waters, and a farther glimmer of more sands beyond them challenged our advance. We had come to a "grapevine ferry." The scow was on the other side, the water too shoal for the horses to swim, and the bottom, most likely, quicksand. Out of the blackness of the opposite shore came a soft, high-pitched, quavering, long-drawn, smothered moan of woe, the call of that snivelling little sinner the screech-owl. Ferry murmured to me to answer it and I sent the same faint horror-stricken tremolo back. Again it came to us, from not farther than one might toss his cap, and I followed Ferry down to the water's edge. The grapevine guy swayed at our side, we heard the scow slide from the sands, and in a few moments, moved by two videttes, it touched our shore. Soon we were across, the two videttes riding with us, and beyond a sharp rise, in an old opening made by the swoop of a hurricane, we entered the silent unlighted bivouac of Ferry's scouts. Ferry got down and sat on the earth talking with Quinn, while the sergeants quietly roused the sleepers to horse. Plotinus is driven by this perplexity to reconsider the whole theory of Matter.477 He takes Aristotle¡¯s doctrine as the groundwork of his investigation. According to this, all existence is divided into Matter and Form. What we know of things¡ªin other words, the sum of their differential characteristics¡ªis their Form. Take away this, and the unknowable residuum is their Matter. Again, Matter is the vague indeterminate something out of which particular Forms are developed. The two are related as Possibility to Actuality, as the more generic to the more specific substance through every grade of classification and composition. Thus there are two Matters, the one sensible and the other intelligible. The former constitutes the common substratum of bodies, the other the common element of ideas.478 The general distinction between Matter and Form was originally suggested to Aristotle by Plato¡¯s remarks on the same subject; but he differs325 from his master in two important particulars. Plato, in his Timaeus, seems to identify Matter with space.479 So far, it is a much more positive conception than the ?λη of the Metaphysics. On the other hand, he constantly opposes it to reality as something non-existent; and he at least implies that it is opposed to absolute good as a principle of absolute evil.480 Thus while the Aristotelian world is formed by the development of Power into Actuality, the Platonic world is composed by the union of Being and not-Being, of the Same and the Different, of the One and the Many, of the Limit and the Unlimited, of Good and Evil, in varying proportions with each other. The Lawton woman had heard of an officer's family at Grant, which was in need of a cook, and had gone there. [See larger version] On the 8th of July an extraordinary Privy Council was summoned. All the members, of whatever party, were desired to attend, and many were the speculations as to the object of their meeting. The general notion was that it involved the continuing or the ending of the war. It turned out to be for the announcement of the king's intended marriage. The lady selected was Charlotte, the second sister of the Duke of Mecklenburg-Strelitz. Apart from the narrowness of her education, the young princess had a considerable amount of amiability, good sense, and domestic taste. These she shared with her intended husband, and whilst they made the royal couple always retiring, at the same time they caused them to give, during their lives, a moral air to their court. On the 8th of September Charlotte arrived at St. James's, and that afternoon the marriage took place, the ceremony being performed by the Archbishop of Canterbury. On the 22nd the coronation took place with the greatest splendour. Mother and girls were inconsolable, for each had something that they were sure "Si would like," and would "do him good," but they knew Josiah Klegg, Sr., well enough to understand what was the condition when he had once made up his mind. CHAPTER V. THE YOUNG RECRUITS Si proceeded to deftly construct a litter out of the two guns, with some sticks that he cut with a knife, and bound with pawpaw strips. His voice had sunk very low, almost to sweetness. A soft flurry of pink went over her face, and her eyelids drooped. Then suddenly she braced herself, pulled herself taut, grew combative again, though her voice shook. HoME²Ô¾®Ïè̫ʲôÐÇ×ù
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