RDMA over Converged Ethernet
E920316
RDMA over Converged Ethernet is a network protocol that enables Remote Direct Memory Access over Ethernet networks to provide low-latency, high-throughput data transfer commonly used in high-performance computing and data centers.
All labels observed (2)
| Label | Occurrences |
|---|---|
| RDMA over Converged Ethernet canonical | 2 |
| RoCEv2 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11351335 — 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: RDMA over Converged Ethernet Context triple: [RoCE, fullName, RDMA over Converged Ethernet]
-
A.
RDMA
RDMA (Remote Direct Memory Access) is a high-performance networking technology that allows one computer to directly access the memory of another without involving the operating system or CPU, significantly reducing latency and CPU overhead in data transfers.
-
B.
SCSI over RDMA
SCSI over RDMA is a storage networking protocol that enables SCSI commands to be transported efficiently over Remote Direct Memory Access–capable networks for high-performance, low-latency data access.
-
C.
IP over InfiniBand
IP over InfiniBand is a networking technology that enables standard Internet Protocol (IP) traffic to run over high-speed InfiniBand fabrics, allowing IP-based applications to leverage InfiniBand’s low latency and high bandwidth.
-
D.
InfiniBand
InfiniBand is a high-speed, low-latency communications standard commonly used as the interconnect fabric in supercomputers and large-scale data centers.
-
E.
NVMe over Fabrics
NVMe over Fabrics is a network protocol that extends the high-performance NVMe storage interface across various network transports to enable low-latency, scalable access to remote solid-state storage.
- 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: RDMA over Converged Ethernet Target entity description: RDMA over Converged Ethernet is a network protocol that enables Remote Direct Memory Access over Ethernet networks to provide low-latency, high-throughput data transfer commonly used in high-performance computing and data centers.
-
A.
RDMA
RDMA (Remote Direct Memory Access) is a high-performance networking technology that allows one computer to directly access the memory of another without involving the operating system or CPU, significantly reducing latency and CPU overhead in data transfers.
-
B.
SCSI over RDMA
SCSI over RDMA is a storage networking protocol that enables SCSI commands to be transported efficiently over Remote Direct Memory Access–capable networks for high-performance, low-latency data access.
-
C.
IP over InfiniBand
IP over InfiniBand is a networking technology that enables standard Internet Protocol (IP) traffic to run over high-speed InfiniBand fabrics, allowing IP-based applications to leverage InfiniBand’s low latency and high bandwidth.
-
D.
InfiniBand
InfiniBand is a high-speed, low-latency communications standard commonly used as the interconnect fabric in supercomputers and large-scale data centers.
-
E.
NVMe over Fabrics
NVMe over Fabrics is a network protocol that extends the high-performance NVMe storage interface across various network transports to enable low-latency, scalable access to remote solid-state storage.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
RDMA protocol
ⓘ
network protocol ⓘ |
| abbreviation | RoCE NERFINISHED ⓘ |
| basedOn | InfiniBand transport semantics ⓘ |
| benefits |
bandwidth-intensive workloads
ⓘ
latency-sensitive workloads ⓘ |
| compatibleWith |
Ethernet layer 2 networks
ⓘ
IP-routed Ethernet networks ⓘ |
| competesWith |
InfiniBand
NERFINISHED
ⓘ
iWARP ⓘ |
| designedFor |
high throughput data transfer
ⓘ
low latency data transfer ⓘ |
| enables |
kernel bypass
ⓘ
zero-copy data transfer ⓘ |
| fullName | Remote Direct Memory Access over Converged Ethernet NERFINISHED ⓘ |
| hasVariant |
RRoCE
NERFINISHED
ⓘ
RoCE v1 ⓘ RoCE v2 NERFINISHED ⓘ |
| hasVersion |
RoCE v1
ⓘ
RoCE v2 NERFINISHED ⓘ RoCE v2.1 NERFINISHED ⓘ |
| introduced | around 2010 ⓘ |
| oftenUses |
Data Center Bridging
ⓘ
Enhanced Transmission Selection NERFINISHED ⓘ Priority-based Flow Control ⓘ Quantized Congestion Notification ⓘ |
| reduces |
CPU utilization for data transfer
ⓘ
network latency ⓘ |
| requires |
RDMA software stack on hosts
ⓘ
RDMA-capable network interface controllers ⓘ lossless or near-lossless Ethernet fabric ⓘ |
| RoCEv1Encapsulation | Ethernet link layer ⓘ |
| RoCEv2DefaultUDPPort | 4791 ⓘ |
| RoCEv2Encapsulation | UDP over IP ⓘ |
| standardizedBy | InfiniBand Trade Association NERFINISHED ⓘ |
| supports |
RDMA read
ⓘ
RDMA write ⓘ Remote Direct Memory Access ⓘ atomic operations ⓘ one-sided RDMA operations ⓘ reliable connection transport service ⓘ two-sided send/receive operations ⓘ unreliable datagram transport service ⓘ |
| usedFor |
MPI-based HPC applications
ⓘ
NVMe over Fabrics transports ⓘ distributed databases ⓘ distributed storage systems ⓘ |
| usedIn |
cloud computing environments
ⓘ
data centers ⓘ high-performance computing ⓘ storage networks ⓘ |
| usesTransport | Ethernet NERFINISHED ⓘ |
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: RDMA over Converged Ethernet Description of subject: RDMA over Converged Ethernet is a network protocol that enables Remote Direct Memory Access over Ethernet networks to provide low-latency, high-throughput data transfer commonly used in high-performance computing and data centers.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
RoCEv2