Cisco 678 Installation And Operation Manual page 172

Glossary
A
Procedure for adjusting line speeds and other communication parameters
auto-negotiation
automatically between two computers during data transfer.
American Wire Gauge. The measurement of thickness of a wire.
AWG
B
The range of frequencies a transmission line or channel can carry: the greater the
bandwidth
bandwidth, the greater the information-carrying capacity of a channel. For a
digital channel this is defined in bits. For an analog channel it is dependent on the
type and method of modulation used to encode the data.
The ability of a user to dynamically set upstream and downstream line speeds to
bandwidth-on-dem
and a particular speed.
Bits per second. A standard measurement of digital transmission speeds.
bps
A device that connects two or more physical networks and forwards packets
bridge
between them. Bridges can usually be made to filter packets, that is, to forward
only certain traffic. Related devices are: repeaters which simply forward
electrical signals from one cable to the other, and full-fledged routers which
make routing decisions based on several criteria. See repeater and router.
Characteristic of any network that multiplexes independent network carriers onto
broadband
a single cable. This is usually done using frequency division multiplexing
(FDM). Broadband technology allows several networks to coexist on one single
cable; traffic from one network does not interfere with traffic from another
because the "conversations" happen on different frequencies in the "ether" rather
like the commercial radio system.
Device that terminates remote users at the corporate network or Internet users at
Broadband Remote
the Internet service provider (ISP) network, that provides firewall,
Access Server
authentication, and routing services for remote users.
A packet delivery system where a copy of a given packet is given to all hosts
broadcast
attached to the network. Example: Ethernet.
Cisco 600 Series Installation and Operation Guide
2
78-11190-01