a positive test proves Ze does what the requirement demands and a negative one proves it refuses what the requirement forbids
Partial
RFC 9086 - Border Gateway Protocol - Link State (BGP-LS) Extensions for Segment Routing BGP Egress Peer Engineering
Every requirement this repository extracted from RFC 9086, 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
the requirement admits no counter-case, so one polarity plus a recorded reason is the whole proof available for it
one direction is tested, the other is neither tested nor excused, and nothing states which
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
MUST-level requirements the gate HOLDS. A population, not a result: the shares beside it are what says how Ze stands
an obligation that does not bind Ze. A {not-applicable} annotation says it never bound; a {feature-declined} annotation says its condition is an optional feature Ze does not offer, and quotes the RFC sentence that makes it optional. Scope, not coverage: it stays in the denominator every share on this page is taken over
a {not-applicable} annotation says the obligation does not bind Ze, so no test is owed for it. It stays in the denominator every share here is taken over
a {lower-layer} annotation says a layer under Ze performs the behavior, on state Ze installs into that layer, and names the producer that installs it. The obligation binds Ze and is met; Ze proves none of it, because its own boundary carries no value the behavior reads
a {feature-declined} annotation says the obligation is conditional on a feature the RFC makes optional and Ze does not offer, and it quotes the sentence that makes it optional. The condition is false, so nothing is owed and nothing is missing. It stays in the denominator every share here is taken over
Negative
what Ze owes
no test carries the requirement id, whether or not a gap states why
The 7 shares marked as a part above are the whole of the 12 gated MUSTs: 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 |
| Not applicable | 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 |
| Met below Ze | neutral | no color: an obligation met below Ze is neither a test Ze wrote nor work Ze owes, and the two green shares above are what says how much Ze proves itself |
| Optional feature declined | neutral | no color: an obligation whose condition Ze never meets is neither an achievement nor a failure. The absent FEATURE is disclosed on the RFC's own status row, as an implementation gap a later scope decision can revisit |
| 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 | Partial |
| Enrolment | Enrolled |
| Requirements | 21 |
| Gated MUST-level | 12 |
| Not applicable, so out of scope | 0 |
| Declared gaps | 10 |
| Gated with no test | 0 |
| Nightly-only evidence | 0 |
| Test tags | 2 |
| Tagged units | 2 |
| Recorded audit verdicts | 0 |
| Discrimination records | 0 |
| Summary | rfc/short/rfc9086.md |
| Requirement shard | rfc/requirements/rfc9086.md |
| RFC text | rfc/full/rfc9086.txt |
Enrolment
Enrolled: BGP-LS Egress Peer Engineering SIDs: 2 single-polarity positive (reserved ignored on receipt) + 10 gap (EPE SID origination not implemented; decode only)
What the public ledger says
Status: Partial
What the ledger says is covered:
- PeerNode/Adj/Set SID TLVs (1101-1103) and BGP Router-ID (516) / Member-ASN (517) node descriptors decode as part of BGP-LS TLV coverage
- reserved fields ignored on receipt.
What the ledger says remains
EPE SID origination is not implemented: no code instantiates PeerNode/Adj/Set SIDs from live sessions, the BGP-LS plugin registers decode mode only, and there is no config surface to enable or disable EPE advertisement. Same BGP-LS encode gap as RFC 7752.Coverage
| Bucket | Count | What it counts |
|---|---|---|
| Positive and negative tests | 0 | one part of the gated population |
| Annotated instead of tested | 12 | 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 | 12 | every gated MUST falls in exactly one bucket above |
Annotated instead of tested (12): RFC9086-3-1, RFC9086-3-2, RFC9086-4.2-1, RFC9086-4.2-2, RFC9086-5-1, RFC9086-5.2-1, RFC9086-5-2, RFC9086-5-3, RFC9086-5-4, RFC9086-7-1, RFC9086-5-5, RFC9086-5-6
Requirements
| Requirement | Level | Section | Tests |
|---|---|---|---|
RFC9086-3-1 | Each BGP session MUST be described by a PeerNode SID (S3) | ||
| MUST | 3 | positive
no testno positive testnegative
no testno negative test{gap}: ze decodes PeerNode SID TLVs but no production code instantiates a PeerNode SID from a live BGP session (decoder internal/component/bgp/plugins/nlri/ls/attr_link.go:554; no non-test caller of the encoder) |
|
RFC9086-3-2 | One PeerNode SID MUST be instantiated to describe the BGP peer session (S3) | ||
| MUST | 3 | positive
no testno positive testnegative
no testno negative test{gap}: the Peer SID encoder exists but nothing instantiates one per session in any production path; the plugin registers decode only (internal/component/bgp/plugins/nlri/ls/attr_link.go:517, plugin.go:70-71) |
|
RFC9086-4.2-1 | BGP Router-ID (TLV 516) and ASN (TLV 512) MUST be included as Local Node Descriptors (S4.2) | ||
| MUST | 4.2 | positive
no testno positive testnegative
no testno negative test{gap}: the NodeDescriptor encoder emits TLV 516/512 but no origination path builds an EPE Link NLRI to carry them (internal/component/bgp/plugins/nlri/ls/types_descriptor.go:101, :116) |
|
RFC9086-4.2-2 | BGP Router-ID (TLV 516) and ASN (TLV 512) MUST be included as Remote Node Descriptors (S4.2) | ||
| MUST | 4.2 | positive
no testno positive testnegative
no testno negative test{gap}: the same encoder covers remote descriptors, but no origination path constructs the NLRI for a live peer (internal/component/bgp/plugins/nlri/ls/types_descriptor.go:98-128) |
|
RFC9086-5-1 | BGP router MUST include PeerNode SID TLV in BGP-LS Attribute when EPE enabled (S5) | ||
| MUST | 5 | positive
no testno positive testnegative
no testno negative test{gap}: there is no EPE-enable path and the BGP-LS plugin never encodes or advertises the attribute (internal/component/bgp/plugins/nlri/ls/attr_link.go:517, plugin.go:70-71) |
|
RFC9086-5.2-1 | Link Local/Remote Identifiers (TLV 258) MUST be included in Link Descriptors for PeerAdj SID (S5.2) | ||
| MUST | 5.2 | positive
no testno positive testnegative
no testno negative test{gap}: LinkDescriptor.WriteTo emits TLV 258 but no origination path builds a PeerAdj SID advertisement (internal/component/bgp/plugins/nlri/ls/types_descriptor.go:203-206) |
|
RFC9086-5-2 | V-Flag and L-Flag MUST be SET for 3-octet local label encoding (S5) | ||
| MUST | 5 | positive
no testno positive testnegative
no testno negative test{gap}: the encoder writes the Flags byte verbatim and never originates a label-encoded SID, so no path sets V/L (internal/component/bgp/plugins/nlri/ls/attr_link.go:521) |
|
RFC9086-5-3 | Reserved bits in Flags MUST be zero when originated (S5) | ||
| MUST | 5 | positive
no testno positive testnegative
no testno negative test{gap}: no production path originates Peer SIDs and the encoder writes Flags unmasked (internal/component/bgp/plugins/nlri/ls/attr_link.go:521) |
|
RFC9086-5-4 | Reserved field (2 octets) MUST be set to 0 on transmit (S5) | ||
| MUST | 5 | positive
no testno positive testnegative
no testno negative test{gap}: the encoder hardcodes the reserved octets to 0 but ze transmits no Peer SIDs in production (internal/component/bgp/plugins/nlri/ls/attr_link.go:523-524) |
|
RFC9086-7-1 | Operator MUST be provided with options to configure, enable, and disable the advertisement (S7) | ||
| MUST | 7 | positive
no testno positive testnegative
no testno negative test{gap}: the BGP-LS plugin augments no config schema; no YANG or CLI surface enables or disables EPE advertisement (internal/component/bgp/plugins/nlri/ls/plugin.go:94-96) |
|
RFC9086-5-5 | Reserved bits in Flags ignored when received (S5) | ||
| MUST | 5 | negative
no testno negative test{single-polarity}: decodePeerSID reads Flags without branching on reserved bits and never rejects on them, so only a positive test is meaningful (internal/component/bgp/plugins/nlri/ls/attr_link.go:559-572) |
|
RFC9086-5-6 | Reserved field (2 octets) ignored on receipt (S5) | ||
| MUST | 5 | negative
no testno negative test{single-polarity}: decodePeerSID reads data[0]/data[1] then jumps to data[4:] for the SID, never inspecting the reserved octets, so it inherently ignores them (internal/component/bgp/plugins/nlri/ls/attr_link.go:559-570) |
|
RFC9086-5-7 | PeerNode SID, PeerAdj SID, PeerSet SID values SHOULD be persistent across router restart (S5) | ||
| SHOULD | 5 | positive
no testno positive testnegative
no testno negative test |
|
RFC9086-3-3 | BGP router SHOULD NOT instantiate BGP Peering SID for IBGP sessions to route reflectors not in forwarding path (S3) | ||
| SHOULD NOT | 3 | positive
no testno positive testnegative
no testno negative test |
|
RFC9086-3-4 | PeerAdj SID MAY be instantiated for underlying link(s) to directly connected BGP peer (S3) | ||
| MAY | 3 | positive
no testno positive testnegative
no testno negative test |
|
RFC9086-3-5 | PeerSet SID MAY be instantiated and shared between PeerNode SIDs or PeerAdj SIDs (S3) | ||
| MAY | 3 | positive
no testno positive testnegative
no testno negative test |
|
RFC9086-4.3-1 | Member-ASN (TLV 517) MAY be included in Local/Remote Node Descriptors (S4.3) | ||
| MAY | 4.3 | positive
no testno positive testnegative
no testno negative test |
|
RFC9086-4.3-2 | Other Node Descriptors per RFC 7752 MAY be included (S4.3) | ||
| MAY | 4.3 | positive
no testno positive testnegative
no testno negative test |
|
RFC9086-5-8 | PeerAdj SID and PeerSet SID TLVs MAY be included in BGP-LS Attribute (S5) | ||
| MAY | 5 | positive
no testno positive testnegative
no testno negative test |
|
RFC9086-5-9 | Additional Link Attribute TLVs per RFC 7752 MAY be included (S5) | ||
| MAY | 5 | positive
no testno positive testnegative
no testno negative test |
|
RFC9086-5.2-2 | Additional Link Descriptor TLVs MAY be included for PeerAdj SID (S5.2) | ||
| MAY | 5.2 | positive
no testno positive testnegative
no testno negative test |
|
Gaps and untested MUSTs
| Requirement | State | Reason |
|---|---|---|
RFC9086-3-1 Each BGP session MUST be described by a PeerNode SID (S3) |
{gap}, no test | ze decodes PeerNode SID TLVs but no production code instantiates a PeerNode SID from a live BGP session (decoder internal/component/bgp/plugins/nlri/ls/attr_link.go:554; no non-test caller of the encoder) |
RFC9086-3-2 One PeerNode SID MUST be instantiated to describe the BGP peer session (S3) |
{gap}, no test | the Peer SID encoder exists but nothing instantiates one per session in any production path; the plugin registers decode only (internal/component/bgp/plugins/nlri/ls/attr_link.go:517, plugin.go:70-71) |
RFC9086-4.2-1 BGP Router-ID (TLV 516) and ASN (TLV 512) MUST be included as Local Node Descriptors (S4.2) |
{gap}, no test | the NodeDescriptor encoder emits TLV 516/512 but no origination path builds an EPE Link NLRI to carry them (internal/component/bgp/plugins/nlri/ls/types_descriptor.go:101, :116) |
RFC9086-4.2-2 BGP Router-ID (TLV 516) and ASN (TLV 512) MUST be included as Remote Node Descriptors (S4.2) |
{gap}, no test | the same encoder covers remote descriptors, but no origination path constructs the NLRI for a live peer (internal/component/bgp/plugins/nlri/ls/types_descriptor.go:98-128) |
RFC9086-5-1 BGP router MUST include PeerNode SID TLV in BGP-LS Attribute when EPE enabled (S5) |
{gap}, no test | there is no EPE-enable path and the BGP-LS plugin never encodes or advertises the attribute (internal/component/bgp/plugins/nlri/ls/attr_link.go:517, plugin.go:70-71) |
RFC9086-5.2-1 Link Local/Remote Identifiers (TLV 258) MUST be included in Link Descriptors for PeerAdj SID (S5.2) |
{gap}, no test | LinkDescriptor.WriteTo emits TLV 258 but no origination path builds a PeerAdj SID advertisement (internal/component/bgp/plugins/nlri/ls/types_descriptor.go:203-206) |
RFC9086-5-2 V-Flag and L-Flag MUST be SET for 3-octet local label encoding (S5) |
{gap}, no test | the encoder writes the Flags byte verbatim and never originates a label-encoded SID, so no path sets V/L (internal/component/bgp/plugins/nlri/ls/attr_link.go:521) |
RFC9086-5-3 Reserved bits in Flags MUST be zero when originated (S5) |
{gap}, no test | no production path originates Peer SIDs and the encoder writes Flags unmasked (internal/component/bgp/plugins/nlri/ls/attr_link.go:521) |
RFC9086-5-4 Reserved field (2 octets) MUST be set to 0 on transmit (S5) |
{gap}, no test | the encoder hardcodes the reserved octets to 0 but ze transmits no Peer SIDs in production (internal/component/bgp/plugins/nlri/ls/attr_link.go:523-524) |
RFC9086-7-1 Operator MUST be provided with options to configure, enable, and disable the advertisement (S7) |
{gap}, no test | the BGP-LS plugin augments no config schema; no YANG or CLI surface enables or disables EPE advertisement (internal/component/bgp/plugins/nlri/ls/plugin.go:94-96) |
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.
RFC9086-3-1
Each BGP session MUST be described by a PeerNode SID (S3)
Audit verdict: not audited: no reader has judged these tests
No test carries RFC9086-3-1, so no unit is bound to it.
RFC9086-3-2
One PeerNode SID MUST be instantiated to describe the BGP peer session (S3)
Audit verdict: not audited: no reader has judged these tests
No test carries RFC9086-3-2, so no unit is bound to it.
RFC9086-4.2-1
BGP Router-ID (TLV 516) and ASN (TLV 512) MUST be included as Local Node Descriptors (S4.2)
Audit verdict: not audited: no reader has judged these tests
No test carries RFC9086-4.2-1, so no unit is bound to it.
RFC9086-4.2-2
BGP Router-ID (TLV 516) and ASN (TLV 512) MUST be included as Remote Node Descriptors (S4.2)
Audit verdict: not audited: no reader has judged these tests
No test carries RFC9086-4.2-2, so no unit is bound to it.
RFC9086-5-1
BGP router MUST include PeerNode SID TLV in BGP-LS Attribute when EPE enabled (S5)
Audit verdict: not audited: no reader has judged these tests
No test carries RFC9086-5-1, so no unit is bound to it.
RFC9086-5.2-1
Link Local/Remote Identifiers (TLV 258) MUST be included in Link Descriptors for PeerAdj SID (S5.2)
Audit verdict: not audited: no reader has judged these tests
No test carries RFC9086-5.2-1, so no unit is bound to it.
RFC9086-5-2
V-Flag and L-Flag MUST be SET for 3-octet local label encoding (S5)
Audit verdict: not audited: no reader has judged these tests
No test carries RFC9086-5-2, so no unit is bound to it.
RFC9086-5-3
Reserved bits in Flags MUST be zero when originated (S5)
Audit verdict: not audited: no reader has judged these tests
No test carries RFC9086-5-3, so no unit is bound to it.
RFC9086-5-4
Reserved field (2 octets) MUST be set to 0 on transmit (S5)
Audit verdict: not audited: no reader has judged these tests
No test carries RFC9086-5-4, so no unit is bound to it.
RFC9086-7-1
Operator MUST be provided with options to configure, enable, and disable the advertisement (S7)
Audit verdict: not audited: no reader has judged these tests
No test carries RFC9086-7-1, so no unit is bound to it.
RFC9086-5-5
Reserved bits in Flags ignored when received (S5)
Audit verdict: not audited: no reader has judged these tests
| Polarity | Test | Kind and tier | Proof state |
|---|---|---|---|
| positive | TestRFC9086PeerSIDIgnoresReservedFields |
unit/verify | unproven |
RFC9086-5-6
Reserved field (2 octets) ignored on receipt (S5)
Audit verdict: not audited: no reader has judged these tests
| Polarity | Test | Kind and tier | Proof state |
|---|---|---|---|
| positive | TestRFC9086PeerSIDIgnoresReservedFields |
unit/verify | unproven |
Extraction sign-off
No extraction sign-off exists for RFC 9086, so no reviewer has walked its text sentence by sentence.
Superseded
No document obsoletes RFC 9086, so its obligations are stated where they were written.