Label Distribution Protocol
E663648
Label Distribution Protocol (LDP) is a signaling protocol used in MPLS networks to establish label-switched paths by distributing labels between routers.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Label Distribution Protocol canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7427852 — 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: Label Distribution Protocol Context triple: [MPLS, usesProtocol, Label Distribution Protocol]
-
A.
UIC classification
UIC classification is a European system for classifying locomotive and multiple-unit wheel arrangements using letters and numbers to denote powered and unpowered axles.
-
B.
Distributed Network Protocol
Distributed Network Protocol is a communications protocol widely used in electric and water utilities for reliable, secure, and time-synchronized data exchange between control systems and remote devices.
-
C.
Harvard Classification Scheme
The Harvard Classification Scheme is an early 20th-century stellar classification system that organizes stars primarily by their spectral characteristics and temperatures into types such as O, B, A, F, G, K, and M.
-
D.
Bliss Classification, 2nd edition
Bliss Classification, 2nd edition is a fully revised and expanded version of Henry E. Bliss’s bibliographic classification system, used in libraries to organize knowledge across all subject areas.
-
E.
DCCPS
DCCPS is a branch of the U.S. National Cancer Institute that leads research and programs focused on cancer prevention, control, and population sciences.
- 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: Label Distribution Protocol Target entity description: Label Distribution Protocol (LDP) is a signaling protocol used in MPLS networks to establish label-switched paths by distributing labels between routers.
-
A.
UIC classification
UIC classification is a European system for classifying locomotive and multiple-unit wheel arrangements using letters and numbers to denote powered and unpowered axles.
-
B.
Distributed Network Protocol
Distributed Network Protocol is a communications protocol widely used in electric and water utilities for reliable, secure, and time-synchronized data exchange between control systems and remote devices.
-
C.
Harvard Classification Scheme
The Harvard Classification Scheme is an early 20th-century stellar classification system that organizes stars primarily by their spectral characteristics and temperatures into types such as O, B, A, F, G, K, and M.
-
D.
Bliss Classification, 2nd edition
Bliss Classification, 2nd edition is a fully revised and expanded version of Henry E. Bliss’s bibliographic classification system, used in libraries to organize knowledge across all subject areas.
-
E.
DCCPS
DCCPS is a branch of the U.S. National Cancer Institute that leads research and programs focused on cancer prevention, control, and population sciences.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
MPLS control-plane protocol
ⓘ
signaling protocol ⓘ |
| abbreviation | LDP ⓘ |
| alternativeTo |
RSVP-TE
ⓘ
Resource Reservation Protocol - Traffic Engineering ⓘ |
| commonlyUsedBy |
carrier MPLS backbones
ⓘ
service provider networks ⓘ |
| compatibleWith |
IPv4
ⓘ
IPv6 ⓘ |
| defaultTCPPort | 646 ⓘ |
| definedInRFC | RFC 5036 ⓘ |
| discoversNeighborsUsing | LDP Hello messages ⓘ |
| doesNotProvide |
explicit traffic engineering
ⓘ
per-LSP bandwidth reservation ⓘ |
| establishes |
LDP adjacency
ⓘ
LDP session ⓘ |
| hasVariant |
Targeted LDP
ⓘ
tLDP ⓘ |
| labelBindingType |
per-interface label space
ⓘ
per-platform label space ⓘ |
| layer | control plane ⓘ |
| operatesBetween | Label Switching Routers ⓘ |
| predecessor |
RFC 3036
ⓘ
linked to:
IETF RFC 3036
|
| primaryPurpose |
distribute MPLS labels between routers
ⓘ
establish label-switched paths ⓘ |
| reliesOn | IP routing table ⓘ |
| standardizedBy |
IETF
ⓘ
linked to:
Internet Engineering Task Force
|
| supports |
downstream on-demand label distribution
ⓘ
downstream unsolicited label distribution ⓘ independent label distribution control ⓘ ordered label distribution control ⓘ |
| supportsApplication |
Layer 3 VPNs
ⓘ
MPLS-based VPN services ⓘ pseudowires ⓘ |
| tLDPUsedFor | non-directly connected LSRs ⓘ |
| transportProtocol |
TCP
ⓘ
linked to:
Transmission Control Protocol
|
| usedFor |
LSP setup for unicast IP prefixes
ⓘ
best-effort MPLS forwarding ⓘ |
| usedIn |
MPLS networks
ⓘ
Multiprotocol Label Switching ⓘ
linked to:
MPLS
|
| uses |
LDP Hello messages
ⓘ
LDP Initialization messages ⓘ LDP Keepalive messages ⓘ LDP Notification messages ⓘ LDP sessions ⓘ Label Mapping messages ⓘ Label Release messages ⓘ Label Request messages ⓘ Label Withdraw messages ⓘ |
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: Label Distribution Protocol Description of subject: Label Distribution Protocol (LDP) is a signaling protocol used in MPLS networks to establish label-switched paths by distributing labels between routers.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.