Experimental

RFC 2205 - Resource ReSerVation Protocol (RSVP) -- Version 1 Functional Specification

Every requirement this repository extracted from RFC 2205, the tests bound to it, and what a reader has verified about them. This summary is enrolled and gated by ./le rfc check.

Overview

Positive

what Ze has

Tested both ways33.3%2 of 6 binding obligations

a positive test proves Ze does what the requirement demands and a negative one proves it refuses what the requirement forbids

One polarity plus reason33.3%2 of 6 binding obligations

the requirement admits no counter-case, so one polarity plus a recorded reason is the whole proof available for it

One polarity, unexcused0.0%0 of 6 binding obligations

one direction is tested, the other is neither tested nor excused, and nothing states which

Proven by a recorded break0.0%0 of 7 tagged units

a red was observed once under a recorded procedure, and the unit, the claim and the producer it rested on still hash to what was recorded. The break is not re-run. A test pair is not a proof until one has been observed

Neutral

measures that are neither good news nor bad

Gated MUSTs6of 10 this summary declares

MUST-level requirements the gate HOLDS. A population, not a result: the shares beside it are what says how Ze stands

Out of scope0of 6 gated MUSTs

a {not-applicable} annotation says the obligation does not bind Ze. Scope, not coverage: it is in no share below

Negative

what Ze owes

No test at all33.3%2 of 6 binding obligations

no test carries the requirement id, whether or not a gap states why

The 4 shares marked as a part above are the whole of the 6 obligations that bind Ze: they add to 100%. Proven by a recorded break is a share of TAGGED UNITS, a different population, so it is not one of them.

How to read the colors

A color names what the measure MEANS, not how well Ze scores on it. Green is a good outcome at any value, red is a bad one, and neither a population nor a scope count is an outcome, so both take no color. The number under the label is what says how far Ze has got.

Card	Tone here	Why that color
Gated MUSTs	neutral	no color: a population is a scale, and a larger one is neither good news nor bad. It is the accounting total
Out of scope	neutral	no color: an obligation that never bound Ze is neither an achievement nor a failure, and counting it either way would be a claim
Tested both ways	ok	green at every value: a test pair is the outcome this gate exists to produce, and the share under the label is what says how far Ze has got
One polarity plus reason	ok	green at every value: where no counter-case exists, one polarity IS the complete answer, and a recorded reason is what the gate demands beside it
One polarity, unexcused	ok	green at zero, RED above it: half a proof with no reason for the other half
No test at all	bad	green at zero, RED above it: a binding obligation nothing exercises is a claim with nothing behind it, whether or not a reason is stated
Proven by a recorded break	ok	green at every value: an observed break is the outcome the discrimination gate exists to produce. The denominator is TAGGED UNITS, not obligations, so this share is not one of the parts above
Audit verdicts	warn	RED on the first weak, wrong or unimplemented verdict, amber while a verdict is no longer current or a gated MUST is unjudged, green when every one is judged sound and current

At a glance

Field	Value
Public status	Experimental
Enrolment	Enrolled
Requirements	10
Gated MUST-level	6
Obligations that bind Ze	6
Not applicable, so out of scope	0
Declared gaps	2
Gated with no test	0
Nightly-only evidence	0
Test tags	10
Tagged units	7
Recorded audit verdicts	0
Discrimination records	0
Summary	`rfc/short/rfc2205.md`
Requirement shard	`rfc/requirements/rfc2205.md`
RFC text	`rfc/full/rfc2205.txt`

Enrolment

Enrolled: RSVP version 1 base protocol (codec shared by ze's RSVP-TE plugin): six MUST-level requirements. 3.1-1 (Version MUST be 1) is met with positive+negative tags (encode round-trip and bad-version decode reject, internal/plugins/rsvpte/wire.go). 3.1-2 (reserved octet 0 on send) and 3.1.2-1 (object length multiple of 4) are {single-polarity: positive} with send-side tests (wire.go and the object encoders). 3.10-1 (reject an unknown Class-Num of the form 0bbbbbbb) is met with positive+negative tags: DecodeMessage classifies by the high-order bit (classifyUnknownClass, wire.go) and engine.rejectUnknownObject answers a PATH with Error Code 13. 3.1-3 (verify checksum on receipt) and x-1 (IP Router Alert in PATH) are {gap}: ze's receive path (wire.go DecodeHeader) and raw-socket send (transport_linux.go) omit these. Disclosed in the docs/features/rfc-status.md RFC 2205 row.

What the public ledger says

Status: Experimental

What the ledger says is covered:

RSVP base common-header and object codec used by RSVP-TE: Version-1 header enforced on decode, reserved octet zeroed on send, every emitted object length a multiple of 4
tests bound per requirement in rfc/requirements/rfc2205.md.

What the ledger says remains:

Two MUST gaps gated in rfc/short/rfc2205.md: the receive path does not verify the RSVP checksum or drop bad-checksum messages (3.1); and PATH is sent without the IP Router Alert option.

Coverage

Bucket	Count	What it counts
Positive and negative tests	2	one part of the gated population
Annotated instead of tested	4	one part of the gated population
One polarity only	0	one part of the gated population
No test and no annotation	0	one part of the gated population
Evidence that runs nightly only	0	an overlay: each of these is also counted by the part it falls in
Gated MUST-level requirements	6	every gated MUST falls in exactly one bucket above

Positive and negative tests (2): RFC2205-3.1-1, RFC2205-3.10-1

Annotated instead of tested (4): RFC2205-3.1-2, RFC2205-3.1.2-1, RFC2205-3.1-3, RFC2205-x-1

Requirements

Requirement	Level	Section	Tests
`RFC2205-3.1-1`	Version field MUST be 1 (§3.1)
	MUST	3.1	positive`unit/verifyTestRSVPHeaderRoundTrip` negative`unit/verifyTestRSVPDecodeHeaderBadVersion`
`RFC2205-3.1-2`	Reserved field in common header MUST be zero (§3.1)
	MUST	3.1	positive`unit/verifyTestRSVPReservedByteZeroOnSend` negative`no test`no negative test {single-polarity}: ze sets the reserved byte to 0 on send (internal/plugins/rsvpte/wire.go:177) and the RFC does not require receivers to reject a nonzero reserved field, so no negative case exists
`RFC2205-3.1.2-1`	Object lengths MUST be a multiple of 4 (§3.1.2)
	MUST	3.1.2	positive`unit/verifyTestRSVPObjectLengthMultipleOfFour` negative`no test`no negative test {single-polarity}: every RSVP object encoder in internal/plugins/rsvpte/wire.go emits a length that is a multiple of 4; the receive path does not enforce %4, so the reject/negative polarity has no code path
`RFC2205-3.1-3`	Checksum MUST be verified on receipt; drop messages with bad checksum (§3.1)
	MUST	3.1	positive`no test`no positive test negative`no test`no negative test {gap}: ze computes the RFC 2205 checksum on send (internal/plugins/rsvpte/build.go:48 internetChecksum) but the receive path (internal/plugins/rsvpte/wire.go:190 DecodeHeader / DecodeMessage) does not verify it or drop bad-checksum messages
`RFC2205-x-1`	IP Router Alert option MUST be set in PATH messages (Transport)
	MUST	x	positive`no test`no positive test negative`no test`no negative test {gap}: ze sends PATH over a raw protocol-46 socket (internal/plugins/rsvpte/transport_linux.go:35-69) and never sets the IP Router Alert option
`RFC2205-3.10-1`	Unknown Class-Num of the form 0bbbbbbb: reject the entire message and return an "Unknown Object Class" error (§3.10)
	MUST	3.10	positive`unit/verifyTestDecodeUnknownObjectClass` negative`unit/verifyTestDecodeUnknownObjectClass` negative`unit/verifyTestEnginePathWithIgnorableObjectAccepted`
`RFC2205-3.7-1`	Refresh period SHOULD be jittered by +/- 50% of R to prevent synchronization (§3.7)
	SHOULD	3.7	positive`no test`no positive test negative`no test`no negative test
`RFC2205-x-2`	Jitter: SHOULD randomize refresh timing (Soft-State Model)
	SHOULD	x	positive`no test`no positive test negative`no test`no negative test
`RFC2205-3.10-2`	Unknown Class-Num of the form 10bbbbbb: ignore the object, neither forwarding it nor sending an error message (§3.10)
	MAY	3.10	positive`no test`no positive test negative`no test`no negative test
`RFC2205-3.10-3`	Unknown Class-Num of the form 11bbbbbb: ignore the object but forward it unexamined and unmodified in every message resulting from this one (§3.10)
	MAY	3.10	positive`no test`no positive test negative`no test`no negative test

Gaps and untested MUSTs

Requirement	State	Reason
`RFC2205-3.1-3` Checksum MUST be verified on receipt; drop messages with bad checksum (§3.1)	{gap}, no test	ze computes the RFC 2205 checksum on send (internal/plugins/rsvpte/build.go:48 internetChecksum) but the receive path (internal/plugins/rsvpte/wire.go:190 DecodeHeader / DecodeMessage) does not verify it or drop bad-checksum messages
`RFC2205-x-1` IP Router Alert option MUST be set in PATH messages (Transport)	{gap}, no test	ze sends PATH over a raw protocol-46 socket (internal/plugins/rsvpte/transport_linux.go:35-69) and never sets the IP Router Alert option

Proof state

A tagged unit reads unproven where no discrimination record exists for it: nothing in this tree has been observed to break it, so the claim its tag makes is unproven.