SSAP
E406984
SSAP (Source Service Access Point) is a field in IEEE 802.2 LLC headers that identifies the logical source endpoint of a network service access point for data link layer communications.
All labels observed (1)
| Label | Occurrences |
|---|---|
| SSAP canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4020489 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SSAP Context triple: [IEEE 802.2, uses, SSAP]
-
A.
SPP
SPP is the Supreme People's Procuratorate of China, the highest national agency responsible for legal prosecution and supervision of law enforcement in the country.
-
B.
SAASS
SAASS is a U.S. Air Force graduate-level school that provides advanced professional military education focused on air, space, and cyber power strategy.
-
C.
SAA
SAA is the ICAO airline designator for South African Airways, the flag carrier airline of South Africa.
-
D.
SA+P
SA+P is the Massachusetts Institute of Technology’s School of Architecture and Planning, encompassing programs in architecture, urban studies, planning, media, and design innovation.
-
E.
APS
APS (American Physical Society) is a leading professional organization dedicated to advancing and disseminating knowledge of physics through research publications, conferences, education, and advocacy.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: SSAP Target entity description: SSAP (Source Service Access Point) is a field in IEEE 802.2 LLC headers that identifies the logical source endpoint of a network service access point for data link layer communications.
-
A.
SPP
SPP is the Supreme People's Procuratorate of China, the highest national agency responsible for legal prosecution and supervision of law enforcement in the country.
-
B.
SAASS
SAASS is a U.S. Air Force graduate-level school that provides advanced professional military education focused on air, space, and cyber power strategy.
-
C.
SAA
SAA is the ICAO airline designator for South African Airways, the flag carrier airline of South Africa.
-
D.
SA+P
SA+P is the Massachusetts Institute of Technology’s School of Architecture and Planning, encompassing programs in architecture, urban studies, planning, media, and design innovation.
-
E.
APS
APS (American Physical Society) is a leading professional organization dedicated to advancing and disseminating knowledge of physics through research publications, conferences, education, and advocacy.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
IEEE 802.2 LLC field
ⓘ
data link layer protocol element ⓘ |
| addressSpace | 0–255 decimal values ⓘ |
| appearsIn | LLC PDU header ⓘ |
| belongsToModel |
OSI protocol suite
ⓘ
surface form:
OSI model
|
| bitLength | 8 bits ⓘ |
| commandResponseBitPosition | least significant bit ⓘ |
| communicationContext |
LAN
ⓘ
MAN ⓘ WLAN ⓘ |
| definedInStandard | IEEE 802.2 ⓘ |
| direction | source ⓘ |
| encodes | source service access point identifier ⓘ |
| fieldType | address field ⓘ |
| fullName | Source Service Access Point ⓘ |
| hasBitStructure | 7-bit SAP value plus 1-bit command/response indicator ⓘ |
| headerFieldOf | IEEE 802.2 LLC header ⓘ |
| layer | data link layer ⓘ |
| notToBeConfusedWith | Session layer SAP ⓘ |
| osiLayer | Layer 2 ⓘ |
| pairedWith | DSAP ⓘ |
| partOf |
IEEE 802.2
ⓘ
surface form:
IEEE 802.2 Logical Link Control
|
| positionRelativeTo | follows MAC header in LLC frame ⓘ |
| relatedConcept |
DSAP
ⓘ
LLC ⓘ Service Access Point ⓘ |
| role |
identifies logical source endpoint of a service access point
ⓘ
identifies source network service access point ⓘ |
| scope | link-local ⓘ |
| standardizationBody |
Institute of Electrical and Electronics Engineers
ⓘ
surface form:
IEEE
|
| supports |
connection-oriented LLC services
ⓘ
connectionless LLC services ⓘ |
| usedBy | LLC sublayer ⓘ |
| usedFor |
data link layer multiplexing
ⓘ
distinguishing multiple protocols over same MAC ⓘ |
| usedIn |
802.11 LLC frames
ⓘ
Ethernet LLC frames ⓘ IEEE 802 family of standards ⓘ
surface form:
IEEE 802 LANs
|
| usedToSelect | upper-layer protocol at source endpoint ⓘ |
| valueType | unsigned integer ⓘ |
| worksWith | MAC sublayer ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: SSAP Description of subject: SSAP (Source Service Access Point) is a field in IEEE 802.2 LLC headers that identifies the logical source endpoint of a network service access point for data link layer communications.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.