Compaq BL10e - HP ProLiant - 512 MB RAM Introduction Manual page 15

Multiple Switched Fabrics – In the Fibre Channel switched fabric topology (called FC-SW), devices
are connected to each other through one or more Fibre Channel switches. Multiple switches in a
fabric usually form a mesh network, with devices being on the "edges" of the mesh.
OSI – The Open Systems Interconnection Basic Reference Model (OSI Reference Model or OSI Model
for short). OSI is a communications and computer network protocol design that grew out a need for
interoperability between equipment manufacturers.
PCI – Peripheral Component Interconnect is an industry standard bus for attaching peripherals to a
computer motherboard.
PCS – Physical Coding Sublayer is part of the PHY, the PCS sublayer is responsible for encoding the
data stream from the MAC layer for transmission by the PHY layer and decoding the data stream
received from the PHY layer for the MAC layer
PFC -- Priority-based Flow Control (PFC) provides a link level flow control mechanism that can be
controlled for independently for each priority. The goal of this mechanism is to ensure zero loss due to
congestion in DCB networks.
PHY – The physical layer device, a circuit block that includes a PMD (physical media dependent), a
PMA (physical media attachment), and a PCS (physical coding sublayer).
PMD – Part of the PHY, the Physical-Media-Dependent sublayer is responsible for signal transmission.
The typical PMD functionality includes amplifier, modulation, and wave shaping. Different PMD
devices may support different media.
QoS – Quality of Service is the ability to provide different priority to different applications, users, or
data stream, or to ensure a certain level of performance to a data stream.
RAN – Regional Area Network
Serial ATA – The Serial Advanced Technology Attachment interface is primarily designed for transfer
of data between a computer and mass storage devices
SFP+ – 10 Gigabit Small Form Factor Pluggable transceiver module is 30% smaller, more power
efficient, requires fewer components, and lower cost than the XFP form factor.
SMF – Single-mode Fiber
SR – Fiber cable standard for "short range" over multimode cabling
TCP/IP – Transmission Control Protocol/Internet Protocol
Twinax – Twinaxial cabling is a type of cable similar to coax, but with two inner conductors instead
of one. Due to cost efficiency it is becoming common in modern very short range high speed
differential signaling applications.
UTP – Unshielded twisted pair
WAN – Wide Area Network
XFP – 10 Gigabit Small Form Factor Pluggable transceiver module is a hot-swappable, protocol-
independent optical transceiver
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