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User's Guide—25Gb Intelligent Ethernet Adapter
QL45212
quality of service (QoS)
Refers to the methods used to prevent
bottlenecks and ensure business conti-
nuity when transmitting data over virtual
ports by setting priorities and allocating
bandwidth.
RDMA over Converged Ethernet (RoCE)
A network protocol that allows remote
direct memory access (RDMA) over a
converged or a non-converged Ethernet
network. RoCE is a link layer protocol that
allows communication between any two
hosts in the same Ethernet broadcast
domain.
reduced instruction set computer (RISC)
A computer microprocessor that performs
fewer types of computer instructions,
thereby operating at higher speeds.
remote direct memory access (RDMA)
The ability for one node to write directly to
the memory of another (with address and
size semantics) over a network. This
capability is an important feature of VI
networks.
serializer/deserializer (SerDes)
A pair of functional blocks commonly used
in high-speed communications to compen-
sate for limited input/output. These blocks
convert data between serial data and
parallel interfaces in each direction.
unified extensible firmware interface (UEFI)
A specification detailing an interface that
helps hand off control of the system for the
preboot environment (that is, after the
system is powered on, but before the
operating system starts) to an operating
system, such as Windows or Linux. UEFI
provides a clean interface between
operating systems and platform firmware
at boot time, and supports an architec-
ture-independent mechanism for initial-
izing add-in cards.
virtual interface (VI)
An initiative for remote direct memory
access across Fibre Channel and other
communication protocols. Used in
clustering and messaging.
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BC0154503-00 B
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