Real-time Transport Control Protocol
E127658
Real-time Transport Control Protocol (RTCP) is a companion protocol to RTP that provides out-of-band control, quality-of-service feedback, and synchronization for real-time audio and video streams over IP networks.
All labels observed (5)
| Label | Occurrences |
|---|---|
| RTCP | 4 |
| RTP Control Protocol | 1 |
| Real-time Transport Control Protocol canonical | 1 |
| SRTCP | 1 |
| Secure RTCP | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1096762 — 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: Real-time Transport Control Protocol Context triple: [Secure Real-time Transport Protocol, secures, Real-time Transport Control Protocol]
-
A.
SRTP for secure media transport
SRTP for secure media transport is a security protocol that encrypts and authenticates real-time audio and video streams, commonly used in VoIP and WebRTC communications.
-
B.
Time-Sensitive Networking
Time-Sensitive Networking is a set of IEEE 802 Ethernet standards that enable deterministic, low-latency, and highly reliable communication for real-time applications such as industrial automation, automotive, and professional audio/video.
-
C.
IEEE 802.1Qat stream reservation protocol standard
The IEEE 802.1Qat stream reservation protocol standard defines mechanisms for reserving network resources to support time-sensitive audio and video streams with guaranteed quality of service over Ethernet networks.
-
D.
Time-Sensitive Networking (TSN) standards
Time-Sensitive Networking (TSN) standards are a set of IEEE Ethernet extensions that provide deterministic, low-latency, and highly reliable communication for real-time and mission-critical applications in industries such as automotive, industrial automation, and audio/video.
-
E.
IEEE 802.1Qav forwarding and queuing for time‑sensitive streams standard
The IEEE 802.1Qav forwarding and queuing for time‑sensitive streams standard defines mechanisms for prioritized traffic shaping and scheduling in Ethernet networks to support low-latency, time-critical data delivery.
- 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: Real-time Transport Control Protocol Target entity description: Real-time Transport Control Protocol (RTCP) is a companion protocol to RTP that provides out-of-band control, quality-of-service feedback, and synchronization for real-time audio and video streams over IP networks.
-
A.
SRTP for secure media transport
SRTP for secure media transport is a security protocol that encrypts and authenticates real-time audio and video streams, commonly used in VoIP and WebRTC communications.
-
B.
Time-Sensitive Networking
Time-Sensitive Networking is a set of IEEE 802 Ethernet standards that enable deterministic, low-latency, and highly reliable communication for real-time applications such as industrial automation, automotive, and professional audio/video.
-
C.
IEEE 802.1Qat stream reservation protocol standard
The IEEE 802.1Qat stream reservation protocol standard defines mechanisms for reserving network resources to support time-sensitive audio and video streams with guaranteed quality of service over Ethernet networks.
-
D.
Time-Sensitive Networking (TSN) standards
Time-Sensitive Networking (TSN) standards are a set of IEEE Ethernet extensions that provide deterministic, low-latency, and highly reliable communication for real-time and mission-critical applications in industries such as automotive, industrial automation, and audio/video.
-
E.
IEEE 802.1Qav forwarding and queuing for time‑sensitive streams standard
The IEEE 802.1Qav forwarding and queuing for time‑sensitive streams standard defines mechanisms for prioritized traffic shaping and scheduling in Ethernet networks to support low-latency, time-critical data delivery.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
control protocol
ⓘ
network protocol ⓘ |
| abbreviation |
Real-time Transport Control Protocol
self-linksurface differs
ⓘ
surface form:
RTCP
|
| bandwidthUsage | typically limited to 5% of session bandwidth ⓘ |
| category |
Internet protocol
ⓘ
streaming media protocol ⓘ |
| companionProtocolOf |
RTP
ⓘ
RFC 3550 ⓘ
surface form:
Real-time Transport Protocol
|
| definedIn | RFC 3550 ⓘ |
| designGoal |
low control overhead
ⓘ
scalability to large multicast groups ⓘ |
| layer | application layer ⓘ |
| operatesOver |
IP
ⓘ
UDP ⓘ |
| packetType |
APP
ⓘ
Application-Defined ⓘ BYE ⓘ Goodbye ⓘ Receiver Report ⓘ SDES ⓘ Sender Report ⓘ Source Description ⓘ |
| partOf |
RTP
ⓘ
surface form:
RTP/RTCP protocol suite
|
| predecessorRFC | RFC 1889 ⓘ |
| provides |
QoS monitoring
ⓘ
media stream synchronization ⓘ out-of-band control ⓘ quality-of-service feedback ⓘ receiver reporting ⓘ sender reporting ⓘ session control information ⓘ |
| securityExtension |
SRTP for secure media transport
ⓘ
surface form:
SRTCP
|
| standardizedBy |
Internet Engineering Task Force
ⓘ
surface form:
IETF
|
| supportsFunction |
jitter estimation
ⓘ
media synchronization using NTP and RTP timestamps ⓘ packet loss reporting ⓘ participant identification via CNAME ⓘ round-trip time estimation ⓘ sender clock reporting ⓘ session membership management ⓘ |
| supportsTopology |
multicast
ⓘ
unicast ⓘ |
| usedFor |
IPTV
ⓘ
VoIP ⓘ WebRTC media control ⓘ multimedia conferencing ⓘ real-time audio streaming ⓘ real-time video streaming ⓘ |
| usedWith |
SRTP for secure media transport
ⓘ
surface form:
SRTP
SRTP for secure media transport ⓘ
surface form:
Secure Real-time Transport Protocol
|
| usesPortRange | dynamic UDP ports ⓘ |
| usesPortRelationship | typically RTP port + 1 ⓘ |
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: Real-time Transport Control Protocol Description of subject: Real-time Transport Control Protocol (RTCP) is a companion protocol to RTP that provides out-of-band control, quality-of-service feedback, and synchronization for real-time audio and video streams over IP networks.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Secure Real-time Transport Protocol
this entity surface form:
RTCP
this entity surface form:
RTCP
this entity surface form:
RTP Control Protocol
Real-time Transport Control Protocol
→
abbreviation
→
Real-time Transport Control Protocol
self-linksurface differs
ⓘ
this entity surface form:
RTCP