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.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| RoCEv2 | 1 |
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 ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
RoCEv2