I-Everything technical definitions


Ethernet: Baseband LAN specifications (10Base2, 10Base5, 10BaseF, 10BaseT, 10Broad36, Fast Ethernet IEEE 802.3) invented by Xerox Corporation and developed jointly by Xerox, Intel, and Digital Equipment Corporation. Ethernet networks use CSMA/CD and run over a variety of cable types at 10 Mbps.

Token Ring: a method in which network devices are arranged schematically in a circle allowing messages to be sent around the network.

LDAP: Lightweight Directory Access Protocol. Protocol that provides access for management and browser applications that provide read/write interactive access to the X.500 Directory.

ISL: Inter-Switch Link. Cisco-proprietary protocol that maintains VLAN information as traffic flows between switches and routers.

VLAN: virtual LAN. Group of devices on one or more LANs that are configured (using management software) so that they can communicate as if they were attached to the same wire, when in fact they are located on a number of different LAN segments. Because VLANs are based on logical instead of physical connections, they are extremely flexible.

IPTV: is a comprehensive network video streaming solution that delivers TV-quality video programming to desktop PCs by leveraging IP/TV software and IP/TV 3400 Series Servers.


Largest global internetwork, connecting tens of thousands of networks worldwide and having a "culture" that focuses on research and standardization based on real-life use. Many leading-edge network technologies come from the Internet community.

DSL: Digital Subscriber Line is a family of broadband access technologies transmitting digital information over existing copper wire pairs.

VPN: Internet Virtual Private Network. A private communications channel over the public access Internet that connects remote offices across the Internet and remote dial users to their home gateway via an ISP.

Remote Access: refers to any technology that enables you to connect users in geographically dispersed locations. This access is typically over some kind of dial-up connection (may also include WAN connections).

Frame Relay: Industry-standard, switched data link layer protocol that handles multiple virtual circuits using HDLC encapsulation between connected devices. Frame Relay is more efficient than X.25, the protocol for which it is generally considered a replacement.

ATM: Asynchronous Transfer Mode. International standard for cell relay in which multiple service types (such as voice, video, or data) are conveyed in fixed-length (53-byte) cells. Fixed-length cells allow cell processing to occur in hardware, thereby reducing transit delays. ATM is designed to take advantage of high-speed transmission media such as E3, SONET, and T3.

VOIP: Voice over IP. The ability to carry normal telephony-style voice over an IP-based Internet with POTS-like functionality, reliability, and voice quality.


Electronic Business: a solution for businesses to sell goods and services through an electronic catalog on the Internet.

Firewall: is a form of security that provides full protection that completely conceals the architecture of an internal network from the outside world. In addition, it also enforces secure access between an internal network and an Intranet, extranet links, and the Internet.

QOS: Quality of service. Measure of performance for a transmission system that reflects its transmission quality and service availability.

CTI: Computer Telephony Integration. Name given to the merger of traditional telecommunications (PBX) equipment with computers and computer applications. The use of Caller ID to automatically retrieve customer information from a database is an example of a CTI application.


The leveraging of voice transmission over in-place data networks that not only supports standard telephone calling and fax transmissions, but also enables modern network applications such as distance learning, videoconferencing, and integrated voice/emails placed from the World Wide Web. Click here to learn more about the I-Everything service model and how it can help you no matter what stage of network computing you are in.