Glossaries
Glossaries
Networking and data-center terminology — SONiC, RoCE, merchant silicon, and open networking definitions.
A
-
ASIC
A chip custom-built for one task; in a switch the forwarding ASIC moves packets in hardware at line rate.
D
-
Data Center Switch
A data center switch is a high-performance network device designed to interconnect servers, storage, and other networking equipment inside a data center at spee
O
-
Open Networking
Open networking is an approach to building network infrastructure by separating (disaggregating) hardware from software, and using open standards and open-sourc
P
-
PoE Switch
A Power over Ethernet (PoE) switch is a network access-layer device that simultaneously delivers both data and electrical power over a single Ethernet cable — e
R
-
RDMA
RDMA (Remote Direct Memory Access) is a networking technology that allows one computer to directly read from or write to the memory of another computer — bypass
-
RoCEv2
RDMA over routable UDP/IP Ethernet (UDP 4791) for low-latency, low-CPU transfers in AI/HPC fabrics; depends on near-lossless Ethernet (PFC/ECN).
S
-
SONiC
SONiC decouples the network operating system from switch hardware. Built on Linux with a containerized architecture, it programs switching ASICs through SAI (th
-
SR-IOV
PCIe feature that splits one physical NIC into many virtual functions, letting VMs and containers bypass the hypervisor for near-native I/O.
T
-
Teralynx 10
Marvell 51.2 Tbps programmable switch ASIC for 800G AI/ML fabrics—ultra-low latency, high radix, 200MB+ buffers.
-
Teralynx 7
Marvell 3.2–12.8 Tbps programmable switch ASIC for 100G–400G leaf/spine—~500 ns latency, large buffers, AI/HPC fabrics.
V
-
VPP
User-space framework that forwards packets in cache-friendly vectors (batches) on commodity CPUs; used to build software routers and dataplanes.
Z
-
ZTP
A switch self-configures on first boot by fetching its IP, OS image and config from network servers — no manual CLI needed.