Internet Assigned Numbers Authority
Application-Layer Traffic Optimization (ALTO) Protocol
Created
2014-03-18
Last Updated
2023-08-14
Available Formats
[IMG]
XML [IMG]
HTML [IMG]
Plain text
Registries included below
??ALTO Cost Modes
??ALTO Cost Metrics
??ALTO Cost Source Types
??ALTO Endpoint Property Types
??ALTO Address Types
??ALTO Error Codes
??ALTO Entity Domain Types
??ALTO Entity Property Types
ALTO Cost Modes
Registration Procedure(s)
IETF Review
Reference
[RFC9274]
Note
Identifiers prefixed with "priv:" are reserved for Private Use (see
[RFC9274], Section 5).
Available Formats
[IMG]
CSV
Identifier Description Intended Semantics Reference
numerical Indicates that numerical operations can be performed on the returned costs Section 6.1.2.1 of [RFC7285] [RFC9274]
ordinal Indicates that the cost values in a cost map represent ranking Section 6.1.2.2 of [RFC7285] [RFC9274]
array Indicates that the cost value is a JSON array Section 6.5.2 of [RFC9275] [RFC9275]
ALTO Cost Metrics
Registration Procedure(s)
IETF Review
Reference
[RFC7285][RFC Errata 6874]
Note
Identifiers prefixed with "priv:" are reserved for Private Use (see
[RFC7285], Section 10.6).
Available Formats
[IMG]
CSV
Identifier Intended Semantics Reference
routingcost See Section 6.1.1.1 of [RFC7285] [RFC7285]
delay-ow See Section 4.1 of [RFC9439] [RFC9439]
delay-rt See Section 4.2 of [RFC9439] [RFC9439]
delay-variation See Section 4.3 of [RFC9439] [RFC9439]
lossrate See Section 4.4 of [RFC9439] [RFC9439]
hopcount See Section 4.5 of [RFC9439] [RFC9439]
tput See Section 5.1 of [RFC9439] [RFC9439]
bw-residual See Section 5.2 of [RFC9439] [RFC9439]
bw-available See Section 5.3 of [RFC9439] [RFC9439]
ane-path See Section 6.5.1 of [RFC9275] [RFC9275]
ALTO Cost Source Types
Registration Procedure(s)
IETF Review
Reference
[RFC9439]
Available Formats
[IMG]
CSV
Identifier Intended Semantics Reference
nominal Values in nominal cases (Section 3.1 of [RFC9439]) [RFC9439]
sla Values reflecting service level agreement (Section 3.1 of [RFC9439]) [RFC9439]
estimation Values by estimation (Section 3.1 of [RFC9439]) [RFC9439]
ALTO Endpoint Property Types
Registration Procedure(s)
IETF Review
Reference
[RFC7285][RFC Errata 6876]
Note
Identifiers prefixed with "priv:" are reserved for Private Use (see
[RFC7285], Section 10.8.2).
Available Formats
[IMG]
CSV
Identifier Intended Semantics Reference
pid See Section 7.1.1 of [RFC7285] [RFC7285]
ALTO Address Types
Registration Procedure(s)
IETF Review
Reference
[RFC7285]
Available Formats
[IMG]
CSV
Identifier Address Encoding Prefix Encoding Mapping to/from IPv4/v6 Reference
ipv4 See Section 10.4.3 of [RFC7285] See Section 10.4.3 of [RFC7285] Direct mapping to IPv4 [RFC7285]
ipv6 See Section 10.4.3 of [RFC7285] See Section 10.4.3 of [RFC7285] Direct mapping to IPv6 [RFC7285]
ALTO Error Codes
Registration Procedure(s)
IETF Review
Reference
[RFC7285]
Available Formats
[IMG]
CSV
Error Code Intended Usage Reference
E_SYNTAX Parsing error in request (including identifiers). See Section 8.5.2 of [RFC7285] [RFC7285]
E_MISSING_FIELD A required JSON field is missing. See Section 8.5.2 of [RFC7285] [RFC7285]
E_INVALID_FIELD_TYPE The type of the value of a JSON field is invalid. See Section 8.5.2 of [RFC7285] [RFC7285]
E_INVALID_FIELD_VALUE The value of a JSON field is invalid. See Section 8.5.2 of [RFC7285] [RFC7285]
ALTO Entity Domain Types
Registration Procedure(s)
IETF Review
Reference
[RFC9240]
Available Formats
[IMG]
CSV
Identifier Entity Identifier Encoding Hierarchy and Inheritance Media Type of Defining Resource Mapping to ALTO Address Reference
Type
ipv4 See [RFC9240], Section 6.1.1 See [RFC9240], Section 6.1.3 application/alto-networkmap+json true [RFC9240]
ipv6 See [RFC9240], Section 6.1.2 See [RFC9240], Section 6.1.3 application/alto-networkmap+json true [RFC9240]
pid See [RFC9240], Section 6.2 None application/alto-networkmap+json false [RFC9240]
asn See [RFC9241], Section 6.1.1.2 None None false [RFC9241]
countrycode See [RFC9241], Section 6.1.2.2 None None false [RFC9241]
ane See [RFC9275], Section 6.2.2 None application/alto-propmap+json false [RFC9275]
subdivisioncode See [RFC9388], Section 3.1.2 None None false [RFC9388]
ALTO Entity Property Types
Registration Procedure(s)
IETF Review
Reference
[RFC9240]
Available Formats
[IMG]
CSV
Identifier Intended Semantics Media Type of Defining Resource Reference
pid See [RFC7285], Section 7.1.1 application/alto-networkmap+json [RFC9240]
cdni-capabilities See [RFC9241], Section 6.2 application/alto-cdni+json [RFC9241]
max-reservable-bandwidth See [RFC9275], Section 6.4.1 application/alto-propmap+json [RFC9275]
persistent-entity-id See [RFC9275], Section 6.4.2 application/alto-propmap+json [RFC9275]
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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