Throughput Definition
Throughput is a measure of how many units of information a system can process in a given amount of time. It is applied broadly to systems ranging from various aspects of computer and network systems to organizations. Related measures of system productivity include , the speed with which some specific workload can be completed, and response time, the amount of time between a single interactive user request and receipt of the response.
Historically, throughput...
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UDP (User Datagram Protocol)
UDP (User Datagram Protocol)
UDP (User Datagram Protocol) is an alternative communications protocol to Transmission Control Protocol (TCP) used primarily for establishing low-latency and loss-tolerating connections between applications on the internet.Both UDP and TCP run on top of the Internet Protocol (IP) and are sometimes referred to as UDP/IP or TCP/IP. But there are important differences between the two.
Where UDP enables process-to-process communication, TCP supports hos...
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Fibre Channel switch (FC switch)
Fibre Channel switch (FC switch)
A Fibre Channel switch is a networking device that is compatible with the Fibre Channel (FC) protocol and designed for use in a dedicated storage area network (SAN).
A Fibre Channel switch inspects a data packetheader, determines the computing devices of origin and destination, and forwards the packet to the intended system. Fibre Channel switches come in different types, including modular director switches (also known as backbone switches) with a h...
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forward error correction (FEC)
forward error correction (FEC)
Forward error correction (FEC) is a method of obtaining error control in data transmission in which the source (transmitter) sends redundant data and the destination (receiver) recognizes only the portion of the data that contains no apparent errors. Because FEC does not require handshaking between the source and the destination, it can be used for broadcasting of data to many destinations simultaneously from a single source.
In the simplest form of FEC, ea...
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IPI (Intelligent Peripheral Interface)
IPI (Intelligent Peripheral Interface)
IPI (Intelligent Peripheral Interface) is a high-bandwidth interface between a computer and a hard disk or a tape device. Devices using IPI can transfer data between the hard drive and RAM in the range between 3 and 25 megabytes per second.The latest version of IPI is IPI-3, which supports redundant array of independent disks. The official IPI standards are:
ANSI/ISO 9318-3 Intelligent Peripheral Interface - Device Generic Command Set for Magnetic...
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NVMe over Fabrics (NVMe-oF)
NVMe over Fabrics (NVMe-oF)
NVMe over Fabrics (NVMe-oF) is a technology specification designed to enable nonvolatile memory express message-based commands to transfer data between a host computer and a target solid-state storage device or system over a network, such as Ethernet, Fibre Channel (FC) or InfiniBand.NVM Express Inc., a nonprofit organization comprising more than 100 member technology companies, published version 1.0 of the NVMe-oF specification on June 5, 2016. A workgroup withi...
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InfiniBand Definition
InfiniBand Definition
InfiniBand is a type of communications link for data flow between processors and I/O devices that offers throughput of up to 2.5 gigabytes per second and support for up to 64,000 addressable devices. Because it is also scalable and supports quality of service (QoS) and failover, InfiniBand is often used as a server connect in high-performance computing (HPC) environments.The internal data flow system in most PCs and server systems is inflexible and relatively slow. As ...
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SCSI (Small Computer System Interface) Definition
SCSI (Small Computer System Interface)
SCSI (pronounced SKUH-zee and sometimes colloquially known as "scuzzy"), the Small Computer System Interface, is a set of American National Standards Institute (ANSI) standard electronic interfaces that allow personal computers (PCs) to communicate with peripheral hardware such as disk drives, tape drives, CD-ROM drives, printers and scannersfaster and more flexibly than previous parallel data transfer interfaces.
SCSI and devices
Although not ...
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Multiprotocol Label Switching (MPLS) Definition
Multiprotocol Label Switching (MPLS) Definition
Multiprotocol Label Switching (MPLS) is a protocol-agnostic routing technique designed to speed up and shape traffic flows across enterprise wide area and service provider networks.
MPLS allows most data packets to be forwarded at Layer 2 -- the switching level -- rather than having to be passed up to Layer 3 -- the routing level. For this reason, it is often informally described as operating at Layer 2.5.
MPLS was created in the late 1990...
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IPsec (Internet Protocol Security) Definition
IPsec (Internet Protocol Security)
IPsec, also known as the Internet Protocol Security or IP Security protocol, defines the architecture for security services for IP network traffic. IPsec describes the framework for providing security at the IP layer, as well as the suite of protocols designed to provide that security, through authentication and encryption of IP network packets. Also included in IPsec are protocols that define the cryptographic algorithms used to encrypt, decrypt and authentic...
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