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ABBA engine

The ABBA (Application Behaviour-Based Analysis) engine guarantees users maximum application performance and work comfort by analyzing application behaviour.

Any to Any

On a network, the capacity of a site to exchange with all the other sites on the network directly (case of the Internet or internal networks such as MPLS or VPLS). As opposed to the Hub and spokes model


Hardware + software solution (Example: Phone + Mobile Package)

Business Service Management (BSM)

Business Service Management (BSM) refers to a technological domain that aims to supervise the quality of business services delivered by information systems, from customer and partner relationship management mechanisms to all internal processes (accounting, sales, etc.)


Mechanical system that can be activated manually, remotely, and closes automatically in case of malfunction or power failure, ensuring wire continuity (copper or optical), making the equipment completely transparent so as not to impact service availability.

Byte Caching

Block caching. A technique that slices a stream into blocks of the same size, calculates a signature for that block, and stores it on both sides of a network. If the same block is replayed (thus with the same signature), only the block reference is sent over the network rather than the block itself. This reliable technique greatly reduces the network requirements of repetitive applications (using the same pages or data) while eliminating the risk of object cache false positives.

Class of Service COS

Based on queuing mechanisms, it manages network traffic by grouping similar traffic flows into classes, each with a different priority level


A technique for reducing the volume of data without loss of information in order to reduce the delay and volume passing through networks. Unlike compression on audio or video streams which degrades the information (loss of quality)


A criticality level (info, minor, major, critical) allows to filter the relevant alarms displayed in a log.

Customer Relationship Management (CRM)

CRM = Customer Relationship Management. application consolidating commercial and technical data on customers (for example Salesforce)


Deduplicates redundant sequences of information (in the form of blocks) as the data travels across the WAN.

DMZ zone

In computing, a demilitarized zone (DMZ) is a subnetwork separated from the local network and isolated from the Internet (or other network) by a firewall.

in Dual

Dedicated to architectures with redundant access links. Each box is installed in front of an access router.

Enterprise Resource Planning

ERP= Enterprise Resource Planning (ERP). Application for managing the process of ordering, manufacturing, delivery and invoicing of a company’s products and services (for example SAP).


Technical means of recognizing and differentiating flows. For example the port, the IP address, the vlan, the URL of the server allow to differentiate the flow of an application from the rest. The combination of several is possible to recognize an application in a precise way.


Allows shaping of flows based on the throughput of the remote access link (shaping) or end-to-end (grooming).

Hub and spokes

A “star topology” is an architecture that converges the flows coming from the ends (spokes) to the hub. This is the case for application architectures where all clients and users connect to the data center.

Hybrid Network

A hybrid network is a network that allows the company to organize flows according to priorities, and to optimize bandwidth. The company thus has an optimal level of performance for its main applications, and in addition, its most sensitive data is secure.

Infrastructure Rules

Some rules are characteristic to describe the topology of an enterprise network, the access links and also the virtual circuits between sites (Shaping and Grooming)

Load Balancing

Process of distributing a set of tasks over a set of resources, with the aim of making the overall processing more efficient


Mean Opinion Score is a specific indicator that measures the user experience


MOS (Mean Opinion Score) measure reflecting the user’s perception of an IP telephony call. CQ for Conversational Quality gives an overall indication of the direction of traffic


MOS (Mean Opinion Score) measure reflecting the user’s perception of an IP telephony call. LQ (Listening Quality) gives an indication reflecting the user’s perception, and is therefore focused on listening only.


MultiProtocol Label Switching (MPLS) is a data transport mechanism based on the switching of labels (tags), which are inserted at the entrance of the MPLS network and removed at its exit


NetFlow is a network monitoring architecture developed by Cisco Systems that collects information on IP flows.

Object Cache

A technique that consists in storing locally a copy of the data accessed through the network (web pages, files) and using this local copy if a new request is made for the same object. This technique is used by Web browsers to store data or images and not reload them each time. This technique can lead to errors (false negatives, false positives) and forces to completely reload the data from the network even for minor modifications.


Peer-to-peer, or P2P, defines a model of peer-to-peer computer networking between computers, which distribute and receive data or files.

Per Flow Queuing

Manage queues by session. Allows you to manage each queue individually, as opposed to Class of Service which mixes the flows of several sessions in the same queue. The challenge is to choose the packets to be transmitted in a finite time while the number of queues can vary greatly from a few hundred to several hundred thousand. This is possible thanks to Streamcore’s patented algorithm.


It is a protocol for retrieving email located on an email server. Apart from a specific configuration, POP connects to the mail server, authenticates itself, retrieves the mail, “can” delete the mail on the server, and disconnects.

Protocol acceleration

Protocol acceleration analyzes the sequence of messages for defined protocols, and ensures that redundant requests are suppressed and do not traverse the WAN.


Quality of Experience refers to the Quality of User Experience. This notion is found under different terminologies, the main one being QoE (Quality of Experience)


Quality of Service (QoS) is the ability to carry a given type of traffic under good conditions, in terms of availability, throughput, transmission times, jitter, packet loss rate

Relative weights or trade weights

Value from 0 to 10.000 allowing to qualify an application and to give it a privileged access to the bandwidth. An application with a weight of 1000 will have 10 times more bandwidth (per session) than an application with a weight of 100

Remote Site

A remote site is one that is separated from the company’s headquarters by a sufficiently large distance for exchanges to have to go through the Internet (this is a “wide area network” WAN connection, whose speeds are lower than the “local area network” LAN).


A rich Internet application is a Web application that offers features similar to traditional software installed on a computer. The interactive dimension and the speed of execution are particularly taken care of in these Web applications.


Basic object of the Streamcore solution that allows defining applications at the business level. For each site, and for each application, the rule will allow to record and historicalize indicators and to define a QoS policy. A rule has a logical and business purpose. For example Teams (Audio), Accounting application. The technical part of recognizing the application is found in the filters.


Software as a service (SaaS) is a business model of software operation in which software is installed on remote servers rather than on the user’s machine.


It is a device that allows to regulate a flow on a given value. For example the bandwidth (10 Mb, 100 Mb) or a variable rate depending on the load. Streamcore technology allows an unlimited number of Scheduler in a QoS policy.


Allows you to highlight hot spots that require special attention. The determination of the causes of an incident is facilitated by the unified view of the flows in a single window

Service Level Management (SLM)

Defined within the framework of ITIL, this approach recommends defining, measuring and ensuring quality levels for the services provided to users.


Allows shaping of flows based on the throughput of the remote access link (shaping) or end-to-end (grooming).


SIP is the signaling protocol for IP telephony.

Smart Service Tree

Streamcore makes service management simple, intuitive, and adaptive by making all types of information accessible through the Smart Service Tree


Software agent installed on client terminals providing acceleration functions for nomads or sites not equipped with SG boxes


Virtual equipment (in the form of a VM) that monitors SpeedServers


Virtual appliance (in the form of a VM) that provides acceleration functions such as compression, TCP acceleration and deduplication


Flexible access rights management to efficiently share information and provide personalized access to different MMS applications


IP session storage equipment


Definition and generation of personalized web pages for long-term reporting.


Traffic management equipment

StreamGroomer Manager

Allows centralized administration of all features including management and configuration, real-time monitoring, reporting and performance control. The MMS is available as a VM or Appliance (depending on the number of sites).


Automatic display of network, application, VoIP/video performance and usage in a dynamic map


Definition, planning, consultation, transmission (e-mail) of reports in PDF, HTML, CSV, XML, …


Centralized management of StreamGroomers. Configuration of IS organization, sites, network, application or VoIP/video rules. Use of real time monitoring and troubleshooting tools.

SQL query

It is a database query. It can include a number of criteria to specify the request. The SQL it is exploited in the relational data bases (whose information is recorded in tables with two dimensions).

TCP acceleration

TCP acceleration is the name of a series of techniques for achieving higher throughput over a network connection than standard TCP, without changing the end applications.


Human Machine Interface (UI)

Virtual Desktop Infrastructure - VDI

Desktop virtualization (Virtual Desktop Infrastructure) provides the ability to centrally host and manage virtual desktops in data centers, while offering users an interface identical to that of a traditional desktop PC

Wide Area Network (WAN)

A Wide Area Network (WAN) is a computer or telecommunications network covering a large geographic area, typically a country, a continent, or the entire planet. The largest WAN is the Internet.

XML message

XML is a notation, i.e. a way of writing information