Term
| Circuit switching networks |
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Definition
| single path from one endpoint to another is built when a connection is needed. |
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Term
| (PVC) Permanent Virtual Circuits |
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Definition
| Usually associated with leased lines. Connect two endpoints and are always on |
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Term
| Switched Virtual Circuits (SVCs) |
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Definition
| Associtaed with dial-up and demand-dial connections. |
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Term
| Packet Switching Networks |
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Definition
| move data through the network packet by packet. |
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Term
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Definition
| very similar to packet switching networks except that data is divided into fixed-length packets. |
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Term
Digital Subscriber Line (DSL) |
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Definition
group of technologies that transmit digital signals over existing phone lines.
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Term
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Definition
| telephone company provides a dedicates connection between two endpoints that companies use to provide high-quality connection between two locations |
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Term
| Integrated Services Digital Network (ISDN) |
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Definition
| digital circuit switching technology that carries both voice and data over digital phone lines or PSTN wires. |
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Term
| Basic Rate Interface (BRI) |
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Definition
2B+D
Bearer Channels Carry data
Delta Control info connection establishment and break down |
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Term
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Definition
23B+D
Delta B+D = 64k
24+64k |
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Term
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Definition
| Connection that use modems, existing phone lines, existing long-distance carrier services to provide low-cost, low-bandwidth WAN connectivity and remote network access. |
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Term
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Definition
| packet switching implementation developed to efficiently transmit digital information |
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Term
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Definition
legacy packet switching network technology developed in the 1970s to move data across the less-than-reliable long-distance public carriers available at that time. |
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Term
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Definition
end devices used on a frame relay
often a router |
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Term
| Asynchronous Transfer Mode (ATM) |
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Definition
versatile, cell switching network technology designed for deployment in LANs, WANs and telephone networks.
high bandwidth
53 byte cell
bandwidth 51.84 Mbps to 2.488 Gbps
capability to carry data, voice, and video simultaneously on the same channels.
Built in (QoS) Quality of Service
support real-time |
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Term
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Definition
both circuit and packet switched networks starting to replace both ATM + F.R.
can carry IP packets, ethernet ATM and sonet traffic. |
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Term
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Definition
designed to carry multiplexed telephone connections
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Term
| Synchronous Optical Network (Sonet) |
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Definition
transport over fiber optic cable
Excellent bandwidth
built-in fault recovery
Speeds up to 2.48 Gbps
OC and STS Specifications
Self-healing dual-fiber ring |
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Term
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Definition
| channelized technology based on the same 64 Kbps channel as DSH but with a base rat of 810 channels. |
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Term
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Definition
IEEE 802.16
operates in frequency ranges between 2 and 11 GH*z |
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Term
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Definition
| used to combine multiple data signals onto WAN transmission media, such as fiber or T1 lines, to use the physical link in the most efficient way possible. |
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Term
| Internet Connection Sharing (ICS) |
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Definition
| connectivity technique for ac computer systems that connects multiple computers to the internet by using a single internet connection, |
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Term
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Definition
| communication systems that replace traditional telephone links by transmitting analog voice communications over digital WAN networking technologies. |
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Term
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Definition
| Voice over Data implementation in which voice signals are transmitted over IP networks. |
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Term
| Session Initiation Protocol (SIP) |
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Definition
| Responsible for signaling port of VoIP |
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Term
| Real-time Transport Protocol |
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Definition
| Transmits audio or video content and defines the packet for delivery including the type of content, sequence numbering, time stamping and delivery monitoring. |
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