Network with token, out of ring, developed by IBM in the Seventies and standardized under standard IEE 802.5.
The network Token Ring is network in which before emitting on the network a computer must have a "token".
The purpose of this logical token, taking the shape of a particular package circulating of computer out of computer, is to prevent that two computers emit simultaneously on the network and cause a collision.
To allow the good circulation of the token, the network with schematically a form circular, known as out of ring, where the token circulates gradually.
At the time of the operation of the network, a computer wishing to emit will receive the token of the close computer preceding it on the network, to transmit the desired data, then, at the end of its transmission (or when the time of emission being granted him is past), it will make pass the token to the computer succeeding to him on the ring.
This type of network is predictive, it is has to say that one can calculate the maximum time which will put the token to make the turn of the ring, which made it very popular in the industrial field real time, for example for the piloting of robots. Its complexity and its cost made it marginal in the other fields or it was supplanted by the standard éthernet simpler and less expensive.
The standard éthernet envisages speeds of 4 or 16 megabits a second, the standard High Speed Token Ring (HSTR) allows when it speeds of 100 Mb/s.
WiMax WiMax - Worldwide Interoperability for Microwave Access.
Technology without wire of transmission with high flow with broad range (50 kilometers)
Bandwidth The Band-width represents the quantity of data which can be transmitted in a given time.
BIND The most widespread implementation of protocol DNS on Internet.
Bluetooth Communications protocol by waves radios defined by Ericsson, IBM, INTEL, Nokia and Toshiba
BGP BGP is a protocol of routing defined by the IETF in document RFC 1771 (BGP-4).
Broadcast The broadcast is an English term defining a data dissemination in a unit of machines connected to a network. In French one uses the diffusion term.
DSLAM The DSLAM is the equipment which makes the connection between the telephone lines of the subscribers with Internet and the network of the operator to which it belongs (Free, Wanadoo, Last nine Telecom...).
DHCP Dynamic Host Protocol Configuration
Ethernet Protocol of local area network normalizes very widespread initially developed by Xerox in the years 1970.
Ftp File transfer protocol
GPRS Evolution of the mobile network of telephony GSM based on the packet switching allowing a terminal dated without wire to communicate through network GSM by using a transmission channel in mode package with a maximum capacity of 32400 b/s in reception and
GSM Total communication system for a mobile use
Header Heading
Hotspot Not or limits allowing the communication without wire.
HTTP Protocol of Hypertext transfer
IPv4 IPv4 for Internet Protocol v4 is as its name indicates it a protocol which identifies addresses known as IP on Internet. IP addresses are coded on 32 bits (4 bytes) of the form xxx.xxx.xxx.xxx
IPv6 Version 6 of protocol Internet IPV6 is the successor of the current version (IPV4).
IP routing source The routing source consists, for the shipper of a package, to define the road taken by this package on the network.
IP spoofing Usurpation of address IP.
LDAP Access protocol to a directory, derived from X500, with the top of TCP/IP. It is an implementation reduced of the protocol ISO DAP. It became the standard of the electronic phone books.
LAN Local area network
ATM ATM is a protocol of transport containing packages which multiplexes as well data as of the voice and video.
MPLS Standardized switching technique largely used in the networks of operators; it is derived from the technique invented by Cisco the "Tag switching".
Footbridge IP Machine or equipment Router allowing to change network IP.
STALEMATE Port Adress Translation
POP Waiter of our person receiving benefits who holds our mail on standby to be raised.
Propagation of the DNS Time of taking into account of a change in the configuration of the DNS.
Protocol Specification of a dialogue between several computers which exchange data.
Protocols of routing IP In environments of dynamic routing IP, information of routing IP is transmitted using protocols of routing IP. The two protocols of routing IP the most used for the Intranets are the protocol RIP (Routing Information Protocol) and protocol OSPF (Open Sho
Proxy Computer or software which is intercalated between a private network and Internet
Router Case allowing two or several distant networks to exchange data.
SSH SSH is a protected alternative of telnet rlogin and rsh. This program is developpé by SSH Communications Security Ltd.
It is generally used to be connected to a waiter and to carry out orders via Shell UNIX
SSL Protocol ensuring a protected transmission of data on a Web site.
SIP SIP is a protocol used in voice on IP making it possible to transfer from the voice, the video or the data through a network.
Smtp Simple Mall Protocol Transport
SOAP Protocol based on XML for the exchange of information in decentralized environment.
Spoofing of DNS The therme "Spoofing" indicates in French "the usurpation". I.e., to be made pass for somebody of other. "Spoofing DNS" consists in usurping the identity of an already known waiter DNS
DNS System allowing to associate a name in current language at an Address IP
UMTS Normalizes for the systems of mobile telecommunications known as of third generation (3G).
CPL Access to the Internet high-flow via the electrical supply network.
TCP/IP Together of rules which make it possible computers to communicate.
VPN - Virtual Private Network Virtual private network.
WebDAV - eb-based Distributed Authoring and Versio WebDAV means "Web-based Distributed Authoring and Versioning". It is an extension of protocol HTTP and allows to the users the edition and the file management on a distant waiter.
TLS- Transport To bush-hammer Security Protocol of safety usually used on Internet.
WLAN - Wireless LAN Local area network without wire.
Wifi - Wireless Fidelity "Fidelity without wire", a whole of standards standards for the networks without wire..
WiMax - Worldwide Interoperability for Microwave A Technology without wire of transmission with high flow with broad range (50 kilometers)
X25 Communications protocol standardized by packet switching.
Token Ring