Glossary

2N / N+1 / N+2

CATEGORY: Facility
2N is redundant model that ensures that each component of the system has a reserve (backup) in order to achieve the effect in which there is no possibility of system failure. N+1 is where the concept of redundancy is configured to include a volume capacity that is used, but that there is a spare which is activated in case of primary capacity. N+2 is where the concept of redundancy is configured to include a volume capacity that is used, but that there are two spare that it is switched in case of primary or third capacity includes in case of the first two.
data_centar

AAA

CATEGORY: IT

Authentication, authorization, and accounting (AAA) is a term for a framework for intelligently controlling
access to computer resources, enforcing policies, auditing usage, and providing the information necessary to
bill for services. These combined processes are considered important for effective network management and security.
Authentication, authorization, and accounting activities are conducted through three
data services – a local security database, TACACS+ servers, and RADIUS servers.

it

AC

CATEGORY: Colocation
In electricity, alternating current (AC) occurs when charge carriers in a conductor or semiconductor periodically reverse their direction of movement.
kolokacija

AHJ (Authority Having Jurisdiction)

CATEGORY: Abbreviations
Authority Having Jurisdiction (AHJ) is an organization, office, or individual responsible for enforcing the requirements of a code or standard, or for approving equipment, materials, an installation, or a procedure.
kratice

AIM (Automated Infrastructure Management)

CATEGORY: Abbreviations
Automated Infrastructure Management (AIM) automates discovery and documentation of network cabling infrastructure in the data center, central office or commercial building.
kratice

AIX

CATEGORY: Applications
AIX (Advanced Interacitve eXecutive ) is operating system designed to deliver outstanding scalability, reliability, and manageability.
aplikacije

ANSI (American National Standards Institute)

CATEGORY: Abbreviations
The Institute oversees the creation, promulgation and use of thousands of norms and guidelines that directly impact businesses in nearly every sector: from acoustical devices to construction equipment, from dairy and livestock production to energy distribution, and many more. ANSI is also actively engaged in accreditation - assessing the competence of organizations determining conformance to standards.
kratice

ATS

CATEGORY: DC operations
ATS (Automatic Transfer Switch ) switch data center power from utility grid to your backup generator.
dc_operacije

Backbone

CATEGORY: Network
A backbone is the part of the computer network infrastructure that interconnects different networks and provides a path for exchange of data between these different networks. A backbone may interconnect different local area networks in offices, campuses or buildings. When several local area networks (LAN) are being interconnected over a considerable area, the result is a wide area network (WAN), or metropolitan area network (MAN) if it happens to serve the whole city.
mreza

BGP

CATEGORY: Protocols
Border Gateway Protocol (BGP) is a routing protocol used to transfer data and information between different host gateways, the Internet or autonomous systems. BGP is a Path Vector Protocol (PVP), which maintains paths to different hosts, networks and gateway routers and determines the routing decision based on that.
protokoli

Blank panel

CATEGORY: Facility

Blank panels cover open areas on an installed rack face, providing a clean, professional appearance. Blank panels also serve an essential thermal management function by blocking unwanted airflow.

data_centar

BMS

CATEGORY: Facility
A Building Management System (BMS) is an integrated data network and control system for automation, monitoring and control of HVAC (Heating, ventilation and air conditioning), lighting and other functions in a building. By connecting HVAC equipment, such as sensors, controllers, pumps and fans to a BMS an individual building’s indoor climate can be controlled by special software.
data_centar

Bridge

CATEGORY: Network
Bridge is device that helps to join two separate computer networks together to enable communication between them.
mreza

Cabinet

CATEGORY: Colocation
Cabinet in data center is an enclosure which holds servers and other IT equipment in place.
kolokacija

Cable manager

CATEGORY: Colocation
Cable managers are used for keeping cables in racks and enclosures organized. Additionally, they hold cables in a way that ensures that airflow is never compromised and everything is neatly and safely held in place.
kolokacija

Cable manager

CATEGORY: Colocation
Cable managers help manage and protect cables in racks, cabinets, and enclosures.
kolokacija

Cabling

CATEGORY: Network
A combination of cables, wire, cords, and connecting hardware used in the telecommunications infrastructure.
mreza

Campus

CATEGORY: Network

In telecommunications, a campus is a physically contiguous association of locations such as several adjacent office buildings. Typically, such areas require one or more local area networks and bridging, routing, and aggregation equipment based on situational needs.

mreza

CCTV

CATEGORY: Facility
CCTV is a video survelliance system that uses video cameras, which send their signal to central unit, that can be then recorded or monitored.
data_centar

CEPH

CATEGORY: IT

Ceph is a Distributed Object Storage System (Engl. Storage) designed to achieve excellent performance and a high availability and reliable system. In addition, it is extremely scalable or expandable to the level of Exabyte.

it

CER (Central equipment room)

CATEGORY: Abbreviations
Central equipment room is where shared equipment common to all technical areas is located.
kratice

Chiller

CATEGORY: Colocation
A data center chiller is a cooling system used in a data center to remove heat from one element and deposit it into another element. Chillers are used by industrial facilities to cool the water used in their heating, ventilation and air-conditioning (HVAC) units. Round-the-clock operation of chillers is crucial to data center operation, given the considerable heat produced by many servers operating in close proximity to one another. Without them, temperatures would quickly rise to levels that would corrupt mission-critical data and destroy hardware.
kolokacija

CIX

CATEGORY: Organizations
CIX (Croatian Internet eXchange) is Croatian national center for Internet exchange hosted by the University Computing Center (SRCE), and also in Altus-IT data center (CIX2). It is place where all Internet providers in Croatia, both commercial and non-commercial or private networks can exchange Internet traffic.
organizacije

Cloud computing

CATEGORY: Cloud
Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.
cloud

Coaxial cable

CATEGORY: Network
Coaxial cable conducts electrical signal using an inner conductor (usually a solid copper, stranded copper or copper plated steel wire) surrounded by an insulating layer and all enclosed by a shield, typically one to four layers of woven metallic braid and metallic tape. Coaxial cable is used as a transmission line for radio frequency signals.
mreza

Colocation

CATEGORY: Colocation

Colocation represents one of the data centre’s fundamental services. The service implies the leasing of a complete rack or as per unit height (U), as well as the leasing of a private cage.

kolokacija

Connector

CATEGORY: Network
Connector is a connector attached to a wire, cable, or piece of hardware, having one or more exposed, unshielded electrical terminal s, and constructed in such a way that it can be inserted snugly into a receptacle ( female connector ) to ensure a reliable physical and electrical connection .
mreza

CP (Control plane)

CATEGORY: Abbreviations
The control plane is the part of a network that carries signaling traffic and is responsible for routing. Control packets originate from or are destined for a router. Functions of the control plane include system configuration and management
kratice

CPE (Customer-premises equipment)

CATEGORY: Abbreviations
Customer-premises equipment or customer-provided equipment (CPE) is any terminal and associated equipment located at a subscriber's premises and connected with a carrier's telecommunication channel at the demarcation point.
kratice

CPU

CATEGORY: Server components
Central Processing Unit. The CPU is the primary component of a computer that processes instructions. It runs the operating system and applications, constantly receiving input from the user or active software programs. It processes the data and produces output, which may stored by an application or displayed on the screen.
komponente_racunala

Cron

CATEGORY: Applications
Cron is a daemon that runs on Linux and Unix environments that execute scheduled commands also known as cron jobs created by the crontab command.
aplikacije

Dark fibre

CATEGORY: Network
Dark fiber is unused optical fiber that has been laid but is not currently being used in fiber-optic communications. Because fiber-optic cable transmits information in the form of light pulses, a "dark" cable refers to one through which light pulses are not being transmitted.
mreza

Data center

CATEGORY: Facility
Data centers are physical or virtual infrastructure used by enterprises to house computer, server and networking systems and components for the company's information technology (IT) needs, which typically involve storing, processing and serving large amounts of mission-critical data to clients in a client/server architecture.
data_centar

DC

CATEGORY: Colocation
DC (direct current) is the unidirectional flow or movement of electric charge carriers (which are usually electrons). The intensity of the current can vary with time, but the general direction of movement stays the same at all times.
kolokacija

DDoS

CATEGORY: IT
A distributed denial-of-service (DDoS) is a type of computer attack that uses a number of hosts to overwhelm a server, causing a website to experience a complete system crash. This type of denial-of-service attack is perpetrated by hackers to target large-scale, far-reaching and popular websites in an effort to disable them, either temporarily or permanently. This is often done by bombarding the targeted server with information requests, which disables the main system and prevents it from operating. This leaves the site's users unable to access the targeted website. DDoS differs from a denial-of-service (DOS) attack in that it uses several hosts to bombard a server, whereas in a DoS attack, a single host is used.
it

Demarcation point

CATEGORY: Network
A demarc (an abbreviation for demarcation point) marks the point where communications facilities owned by one organization interface with that of another organization. In telephone terminology, this is the interface between customer-premises equipment and network service provider equipment.
mreza

DR

CATEGORY: IT
Disaster recovery (DR) involves a set of policies and procedures to enable the recovery or continuation of vital technology infrastructure and systems following a natural or human-induced disaster. Disaster recovery focuses on the IT or technology systems supporting critical business functions
it

DX cooling

CATEGORY: Facility
DX cooling (Direct eXpansion air conditioning system) uses a refrigerant vapour expansion/compression (RVEC) cycle to directly cool the supply air to an occupied space.
data_centar

EF (Entrance Facility)

CATEGORY: Abbreviations
The entrance facility is the point at which the outdoor plant cable connects with the building’s backbone cabling. This is usually the demarcation point between the third-party service provider and the customer’s proprietary systems. Design recommendations are in the TIA/ EIA-569-B, which covers cables, connecting hardware, and protection devices.
kratice

Enclosure

CATEGORY: IT
An enclosure is a term often associated with computer hard drives, however, can be used to describe any external or internal box that holds a computer peripheral such as a hard drive.
it

End user

CATEGORY: IT
An end user is the human individual that uses any computing-enabled device or appliance. This is a broad term but it has slightly different meanings in the context of software, hardware, handheld, Internet or other computing solutions. It is an important consideration for manufacturers, which must consider their technology from the viewpoint of those who will be using it.
it

ER (Equipment Room)

CATEGORY: Abbreviations
The equipment room contains the main distribution frame (the main location for backbone cabling), phone systems, power protection, uninterruptable power supplies (UPS), LAN equipment (such as bridges, routers, core switches, and hubs), and any file servers and data processing equipment, including the mechanical terminations.
kratice

Ethernet

CATEGORY: Network
Ethernet is the most widely installed local area network (LAN) technology. It describes the standard way to connect computers on a network over a wired connection.
mreza

File System

CATEGORY: IT

File systems are used to control how data is stored and retrieved from a data storage device. Without a file system, the information stored on the storage device was a great entity without any means of differentiating the various pieces of information.

it

Firewall

CATEGORY: Network
Firewall is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules.
mreza

Floor grill

CATEGORY: Facility
Floor grill is part of the double floor that serves to better circulation of cold air.
data_centar

FM 200

CATEGORY: Facility
FM-200 is a clean, colorless, and environmentally friendly fire suppression agent that is electrically non-conductive and safe for humans. It extinguishes flames primarily through heat absorption, leaving no residue, thus minimizing downtime after a fire.
data_centar

Free cooling

CATEGORY: DC operations
Free cooling is an approach to lowering the air temperature in a building or data center by using naturally cool air or water instead of mechanical refrigeration.
dc_operacije

FTP

CATEGORY: Protocols
FTP is a protocol designed for transferring files over the Internet. Files stored on an FTP server can be accessed using an FTP client, such as a web browser, FTP software program, or a command line interface.
protokoli

Fusion splicing

CATEGORY: Terms
Fusion splicing is the act of joining two optical fibers end-to-end using heat.
pojmovi

GE (Grounding Equalizer)

CATEGORY: Abbreviations
Grounding Equalizer: Bonding conductor that bonds TGBs on the same floor of a structure.
kratice

HDA

CATEGORY: Abbreviations
Horizontal distribution area, an area in a data center that serves as the distribution point for horizontal cabling and houses Horizontal Cross-connects and equipment for connecting to the Zone Distribution Area or Equipment Distribution Area.
kratice

High- availability (HA)

CATEGORY: Network
High- availability refers to a system or component that is continuously operational for a desirably long length of time.
mreza

Host Bus Adapter

CATEGORY: IT

HDD (spining drive) The hard disk is a data storage device (for read and write). Unlike the operating memory, the data recorded on the drive remains preserved even after the computer is shut down. The basic parts of the disc are Magnets, Magnetic Head, Control Mechanism, Head Bracket and Axle.

it

Hub

CATEGORY: Network
The hub a device with two or more connectors receiving framework of protocol data levels and forwarded to destination., but doesn't know what is the exact destination where sends a packet and than sends to all. It serves as a signal amplifier and performs adjustment imendancije.
mreza

Hypervisor

CATEGORY: IT

Hypervisor is a computer software or hardware that creates and runs virtual servers. There are two types of hypervisor: native or host. Native hypervisors are operating systems with a specific virtualization purpose, while host hypervisor are applications that are running on standard operating systems.

it

IDC (Insulation-displacement contact)

CATEGORY: Abbreviations
Insulation-displacement contact (IDC) is an electrical connector designed to be connected to the conductor of an insulated cable by a connection process which forces a selectively sharpened blade or blades through the insulation, bypassing the need to strip the conductors of insulation before connecting.
kratice

Interconnection

CATEGORY: Network
A connection scheme that provides for the direct connection of a cable to another cable or to an equipment cable without a patch cord or jumper.
mreza

IP

CATEGORY: Protocols
Internet Protocol (IP) is the principal set (or communications protocol) of digital message formats and rules for exchanging messages between computers across a single network or a series of interconnected networks, using the Internet Protocol Suite (often referred to as TCP/IP). Messages are exchanged as datagrams, also known as data packets or just packets. IP is the primary protocol in the Internet Layer of the Internet Protocol Suite, which is a set of communications protocols consisting of four abstraction layers: link layer (lowest), Internet layer, transport layer and application layer (highest). The main purpose and task of IP is the delivery of datagrams from the source host (source computer) to the destination host (receiving computer) based on their addresses. To achieve this, IP includes methods and structures for putting tags (address information, which is part of metadata) within datagrams. The process of putting these tags on datagrams is called encapsulation.
protokoli

IP address

CATEGORY: Network
An Internet Protocol address (IP address) is a logical numeric address that is assigned to every single computer, printer, switch, router or any other device that is part of a TCP/IP-based network. The IP address is the core component on which the networking architecture is built; no network exists without it. An IP address is a logical address that is used to uniquely identify every node in the network. Because IP addresses are logical, they can change. The numerals in an IP address are divided into 2 parts: The network part specifies which networks this address belongs to and host part further pinpoints the exact location.
mreza

ISO/OSI

CATEGORY: Network
ISO/OSI is reference network architecture, it cosist of seven levels: application , presentation, session, transport, network,data-link and physical layer.
mreza

KVM

CATEGORY: Cloud
KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V).
cloud

KVM switch

CATEGORY: Network
A KVM switch is a hardware device that allows a user to control multiple computers from a single keyboard, video display monitor and mouse.
mreza

Label marker

CATEGORY: Facility
Label marker is printer that prints self-adhesive labels.
data_centar

LACP

CATEGORY: Protocols
Link Aggregation Control Protocol (LACP) is a protocol for the collective handling of multiple physical ports that can be seen as a single channel for network traffic purposes. This serves the general principle of link aggregation, which describes the effort of setting up parallel network structures to provide redundancy, or to improve performance.
protokoli

LAN

CATEGORY: Abbreviations
A local area network (LAN) is a computer network within a small geographical area such as a home, school, computer laboratory, office building or group of buildings.
kratice

LDAP

CATEGORY: Applications
That protocol is called LDAP, or lightweight directory access protocol, an access mechanism for information sharing between software applications.
aplikacije

Link

CATEGORY: Network
In communications, a link is a line or channel over which data is transmitted.
mreza

Linux

CATEGORY: Applications
World's most popular open source (non-proprietary) computer operating system (OS), favored because of its proven efficiency, dependability, and reliability. Linux implements the core ('kernel') of the unix OS, and runs on practically every type of hardware platform from hand-held devices to mainframe computers. Reported to be the fastest growing OS on servers, and the one with the lowest total cost of ownership (TCO), it is in public domain and may be downloaded free of charge from several websites. Invented by Linus Torvalds (born 1969 in Finland) when he was a student at Helsinki University, it is continuously being improved by the worldwide cooperative effort of thousands of volunteer programmers.
aplikacije

LLDP

CATEGORY: Protocols

LLDP is a discovery protocol that allows devices to advertise information about themselves to peer
devices that are on the same physical LAN and store information about the network. LLDP allows a
device to learn higher layer management reachability and connection endpoint information from
adjacent devices.

protokoli

Load balancing

CATEGORY: Network
Load balancing is dividing the amount of work that a computer has to do between two or more computers so that more work gets done in the same amount of time and, in general, all users get served faster.
mreza

MDA (Main Distribution Area)

CATEGORY: Facility
The main distribution area may serve one or more horizontal distribution areas or equipment distribution areas within the data center and one or more telecommunications rooms located outside the computer room space to support office spaces, operations center and other external support rooms.
data_centar

MMR

CATEGORY: Facility
A meet-me room is a telecom term for a space that is used to physically connect networks from different firms. Meet-me rooms are typically provided by colocation facilities and may feature voice, data and internet (IP) interconnections.
data_centar

Multimeter

CATEGORY: Tools
A multimeter is an electronic tool used to measure voltage, amps and resistance across circuits.By attaching two leads to different parts of an electrical system, professionals can use multimeters to detect levels of voltage and resistance, or changes in electrical currents.
alati

Network domain

CATEGORY: Network
Network domain is a term used to differentiate between multiple private computer networks within the same infrastructure.
mreza

Network Redudancy

CATEGORY: IT
Network redundancy is a process through which additional or alternate instances of network devices, equipment and communication mediums are installed within network infrastructure. It is a method for ensuring network availability in case of a network device or path failure and unavailability.
it

NFS

CATEGORY: IT

NFS - Network File System (NFS) provides a transparent remote access shared online resources. The NFS protocol was created to be transmitted to different platforms, operating systems, network architecture, and transport protocols. Portability is achieved through the RPC (Remote Procedure Call) primitives located on top of XDR (eXternal Day Representation) layer. Implementations exist for many platforms, from personal to supercomputers.

it

NIC

CATEGORY: Network
A network interface controller (NIC, also known as a network interface card, network adapter, LAN adapter or physical network interface) is a computer hardware component that connects a computer to a computer network.
mreza

NOC

CATEGORY: Network
A network operations center (NOC) is a central location from which network administrators manage, control and monitor one or more networks. The overall function is to maintain optimal network operations across a variety of platforms, mediums and communications channels.
mreza

OPM

CATEGORY: Tools
An optical power meter (OPM) is a testing instrument used to accurately measure the power of fiber optic equipment or the power of an optical signal passed through the fiber cable.
alati

Optical fiber

CATEGORY: Network
An optical fiber is a flexible, transparent strand of very pure glass that acts as a light pipe to transmit light between two ends of the fiber. Optical fibers have a core surrounded by a cladding layer made of dielectric material. The optical signals in the core are confined by establishing a refractive index that is greater than the cladding.
mreza

Optical fiber cable

CATEGORY: Network
An optical fiber cable is a type of cable that has a number of optical fibers bundled together, which are normally covered in their individual protective plastic covers. Optical cables are used to transfer digital data signals in the form of light up to distances of hundreds of miles with higher throughput rates than those achievable via electrical communication cables.
mreza

OSPF

CATEGORY: Protocols
Open Shortest Path First, OSPF is an IP link-state network routing protocol that helps determine the most efficient path to the next hop in a network. OSPF was first proposed in 1989 in RFC 1131, OSPF version 2 was later proposed in RFC 2178, and finally, OSPF version 3 or OSPFv3 (used with IPv6) was proposed in RFC 2740.
protokoli

OTDR

CATEGORY: Facility
OTDR (Optical Time Domain Reflectometer) is an important instrument used by organizations to certify the performance of new fiber optics links and detect problems with existing fiber links.
data_centar

Patch cord

CATEGORY: Network
A patch cord is a length of cable with connectors on the ends that is used to connect an end device to something else, such as a power source.
mreza

Patch panel

CATEGORY: Network
A patch panel in a local area network (LAN) is a mounted hardware assembly that contains ports used to connect and manage incoming and outgoing LAN cables.
mreza

PBX

CATEGORY: Abbreviations
A private branch exchange (PBX) is a private telephone network used within an enterprise. It is a business-oriented phone system designed to supply efficient voice communications between the users of an organization. Acting as the phone company’s central office within an organization, a PBX works as the exchange point and point for routing calls.
kratice

PDU

CATEGORY: Network
A protocol data unit (PDU) is an open-system interconnection (OSI) term used in telecommunications that refers to a group of information added or removed by a layer of the OSI model.
mreza

PDU

CATEGORY: Abbreviations

A power distribution unit (PDU) is a type of electrical component that distributes and manages electricity supply to computers, servers and networking devices within a data center environment. It provides a central unit to control and distribute electricity across the data center components. Power distribution units are also known as main distribution units (MDU).

kratice

Ping

CATEGORY: Network

Ping is a network diagnostic tool used primarily to test the connectivity between two nodes or devices. To ping a destination node, an Internet Control Message Protocol (ICMP) echo request packet is sent to that node. If a connection is available, the destination node responds with an echo reply. Ping calculates the round-trip time of the data packet's route from its source to the destination and back, and determines whether any packets were lost during the trip.

mreza

PLC

CATEGORY: Facility
A programmable logic controller (PLC) is a special form of microprocessor-based controller that uses programmable memory to store instructions and to implement functions such as logic, sequencing, timing, counting, and arithmetic to control machines and processes and is designed to be operated by engineers with perhaps a limited knowledge of computers and computing languages. Typically, a PLC system has the basic functional components of processor unit, memory, power supply unit, input/output interface section, communications interface, and programming device.
data_centar

Port

CATEGORY: Network
Is a "logical connection place" and specifically, using the Internet's protocol, TCP/IP, the way a client program specifies a particular server program on a computer in a network.
mreza

Power generator

CATEGORY: Facility

Power generator is multiple assembly of devices connected to one unit. Usually they are intended to convert one form of energy to another. For example, the diesel aggregate as a basic or reserve source of electricity is composed of a Diesel engine and an electric generator. They are usually used to handle power outage in data center.

data_centar

Rack server

CATEGORY: Colocation
A rack server, also called a rack-mounted server, is a computer dedicated to use as a server and designed to be installed in a framework called a rack. The standard rack server width is 19''.
kolokacija

Rack Unit

CATEGORY: Facility
A rack unit (abbreviated as U, less commonly seen as RU) is a unit of measurement applied to equipment racks and the servers, disk drives and other devices that they contain. One U is 1.75 inches (44.45mm); the standard rack, at 19 inches, is 42U.
data_centar

RAID

CATEGORY: Terms

RAID (redundant array of independent disks) is a data storage virtualization technology that combines multiple physical drives to a single logical drive with the purpose of redundancy, performance improvement, or both. There are multiple RAID schemes with different goals, and some of the more popular are: RAID 1, RAID 5, RAID 6, and RAID 10.

pojmovi

Raised floor

CATEGORY: Facility
A raised floor is a data center construction model in which a slightly higher floor is constructed above the building's original concrete slab floor, leaving the open space created between the two for wiring or cooling infrastructure.
data_centar

RAM

CATEGORY: Server components
Random access memory (RAM) is a type of data storage used in computers that is generally located on the motherboard. This type of memory is volatile and all information that was stored in RAM is lost when the computer is turned off.
komponente_racunala

Ramp

CATEGORY: DC operations
Ramp is used for entertainment the requirements for raised floor.
dc_operacije

RDP

CATEGORY: Protocols
Remote Desktop Protocol (RDP) is a proprietary protocol developed by Microsoft, which provides a user with a graphical interface to connect to another computer over a network connection. The user employs RDP client software for this purpose, while the other computer must run RDP server software.
protokoli

Report

CATEGORY: DC operations
A report is written for a clear purpose and to a particular audience. Specific information and evidence are presented, analysed and applied to a particular problem or issue. The information is presented in a clearly structured format making use of sections and headings so that the information is easy to locate and follow.
dc_operacije

RGB

CATEGORY: Abbreviations
Rack Grounding Busbar
kratice

RIP

CATEGORY: Network
Routing Information Protocol (RIP) is a dynamic protocol used to find the best route or path from end-to-end (source to destination) over a network by using a routing metric/hop count algorithm. This algorithm is used to determine the shortest path from the source to destination, which allows the data to be delivered at high speed in the shortest time.
mreza

Router

CATEGORY: Network
Router is device that helps to connect two or more separate networks and determines the best way for a packets to be forwarded to its destination. Router perform functions associated with the OSI Layer 3.
mreza

Secure Shell

CATEGORY: Protocols

Secure Shell (SSH) is a cryptographic protocol that is used to create secure channels over insecure networks (eg. Internet) using a client-server architecture. The most common use is to securely connect to remote devices. It is a substitute for an insecure telnet protocol.

protokoli

Server

CATEGORY: Facility
A server is a computer, a device or a program that provides functionality for other programs or devices, called "clients".
data_centar

Server Cage

CATEGORY: Colocation
A server cage is a specific kind of container for physical server hardware. Like the traditional cage, server cages have open systems composed of metal bars or similar structures, where light and air can move through the enclosure, but where the cage provides effective security for what's inside.
kolokacija

sFlow

CATEGORY: Protocols

sFlow is a multi-vendor sampling technology that continuously monitors application level traffic flow at
wire speed simultaneously on all interfaces. sFlow provides gigabit speed quantitative traffic
measurements without impacting network performance.

protokoli

SLA

CATEGORY: Colocation
A Service Level Agreement (SLA) is the service contract component between a service provider and customer. A SLA provides specific and measurable aspects related to service offerings. For example, SLAs are often included in signed agreements between Internet service providers (ISP) and customers.
kolokacija

SLIP

CATEGORY: Abbreviations
Serial Line Internet Protocol, SLIP is an Internet protocol that allows users to gain Internet access using a computer modem. Today, SLIP is not used as frequently as its successor, Point-to-Point Protocol (PPP), which provides enhanced error detection and automatic configuration.
kratice

Solid State Drive

CATEGORY: IT

SDD (Solid State Drive) are disk devices that, unlike hard drives (HDDs), do not contain mechanical moving parts that read and write data, but have a NAND flash memory mounted on a PCB.

it

SSL

CATEGORY: Protocols
Secure Sockets Layer (SSL) is a standard protocol used for the secure transmission of documents over a network. Developed by Netscape, SSL technology creates a secure link between a Web server and browser to ensure private and integral data transmission. SSL uses Transport Control Protocol (TCP) for communication.
protokoli

Switch

CATEGORY: Network
Switch is network device that centralizes communications among multiple connected devices. Each port on switch is in separate collision domain. It can be managed or unmanaged.
mreza

TCP

CATEGORY: Protocols
Transmission control protocol (TCP) is a network communication protocol designed to send data packets over the Internet. TCP is a transport layer protocol in the OSI layer and is used to create a connection between remote computers by transporting and ensuring the delivery of messages over supporting networks and the Internet.
protokoli

Telecommunications

CATEGORY: Network
Telecommunications is the exchange of information over significant distances by electronic means and refers to all types of voice, data and video transmission.
mreza

Throughput

CATEGORY: Network
Throughput is a measure of how many units of information a system can process in a given amount of time.
mreza

TIA

CATEGORY: Organizations

The Telecommunications Industry Association (TIA) is a trade association which is accredited by the American National Standards Institute (ANSI) in order to develop industry standards for information and communication technologies (ICT) products such as cellular towers, data terminals, VoIP devices, satellites, telephone terminal equipment and many more. TIA has members from all over the industry and currently represents nearly 400 different companies.

organizacije

TMGB

CATEGORY: Terms

Telecommunications Main Grounding Busbar serves as the dedicated extension of the building grounding electrode system for the telecommunications infrastructure. It also serves as the central attachment point for the telecommunications bonding backbone (TBB) and equipment. There is typically 1 TMGB per building.

pojmovi

Topology

CATEGORY: Network
Network topology is the interconnected pattern of network elements. A network topology may be physical, mapping hardware configuration, or logical, mapping the path that the data must take in order to travel around the network.
mreza

Traceroute

CATEGORY: Applications
Traceroute is a method of sending a packet and tracing the packet from its starting to ending location and showing each of the hops required to get to that location. An example of a program capable of doing this is tracert used in Microsoft Windows and other operating systems.
aplikacije

UDP

CATEGORY: Protocols
UDP is a network communication protocol designed to send data over the Internet. Unlike TCP packets, these packets are transported without any verification which significantly accelerates the travel of packets from source to destination. This type of protocol increases the possibility of a particular packet being lost, which is why UDP is used to transfer audio and video content in real time where transmission speed is more important than security.
protokoli

UPS

CATEGORY: Facility
UPS (Uninterruptible Power Supply) is a hardware device that provides a backup power source in case of power failure or fluctuations. A UPS provides enough power for a computer(s) to shut down properly or remain functional during the outage. UPS consists usually of a "bank" of batteries and power sensing and conditioning circuitry. There are three versions of the UPS: standby, on-line and line interactive.
data_centar

UTP

CATEGORY: Network
UTP (Unshielded twisted pair) is cable with four shielded twisted pair. UTP cables vary from Cat.3 - Cat.8. Cat.8 UTP cable is the newest and used for high-speed data transmission up to 40Gbps.
mreza

VDC

CATEGORY: Cloud
VDC (Virtual Data Centre) is an automated and scalable Infrastructure as a service cloud platform providing compute, network and storage.
cloud

VESDA

CATEGORY: DC operations
VESDA (Very Early Smoke Detection Apparatus) is a laser based smoke detection system.
dc_operacije

Virtual machine

CATEGORY: Cloud
A virtual machine is a software computer that, like a physical computer, runs an operating system and applications. The virtual machine is comprised of a set of specification and configuration files and is backed by the physical resources of a host. Every virtual machine has virtual devices that provide the same functionality as physical hardware and have additional benefits in terms of portability, manageability, and security.
cloud

VLAG

CATEGORY: Network
VLAG (Virtual Link Aggregation Group) provides the capability to group multiple links to achieve high availability, redundancy, and increased throughput.
mreza

VLAN

CATEGORY: Network

A virtual local area network (VLAN) allows a group of devices to communicate as if they were in the
same network regardless of their physical location. VLANs are layer 2 structures based on the 802.1Q
standard. VLANs define layer 2 broadcast domains in a layer 2 network, in which each device can receive
broadcast frames sent by any other within the domain.

mreza

VXLAN

CATEGORY: Network

Virtual Extensible LAN (VXLAN) is a networking technology that encapsulates MAC-based Layer 2
Ethernet frames within Layer 3 UDP packets to aggregate and tunnel multiple layer 2 networks across
a Layer 3 infrastructure. VXLAN scales up to 16 million logical networks and supports layer 2
adjacency across IP networks. Multicast transmission architecture is used for broadcast, multicast,
and unknown unicast traffic.

mreza

Wireless standards

CATEGORY: Standards

802.11 - first WLAN standard, maximum network bandwidth of 2 Mbps – too slow for most applications.

802.11b - supports bandwidth up to 11 Mbps, comparable to traditional Ethernet.

802.11a - supports bandwidth up to 54 Mbps and signals in a regulated frequency spectrum around 5 GHz.

802.11g - supports bandwidth up to 54 Mbps, and it uses the 2.4 GHz frequency for greater range.

802.11n - providing for up to 300 Mbps of network bandwidth. It can be used in the 2.4 GHz or 5 GHz frequency bands.

802.11ac - offers backward compatibility to 802.11b/g/n and bandwidth rated up to 1300 Mbps on the 5 GHz band

standardi