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Glossary

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CiscoFusion

Cisco's name for the internetworking architecture under

which its Cisco IOS operates. It is designed to "fuse" together the capabilities
of its disparate collection of acquired routers and switches.

Cisco IOS software

Cisco Internet Operating System software. The

kernel of the Cisco line of routers and switches that supplies shared func-
tionality, scalability, and security for all products under its CiscoFusion
architecture. See also: CiscoFusion.

CiscoView

GUI-based management software for Cisco networking

devices, enabling dynamic status, statistics, and comprehensive configura-
tion information. Displays a physical view of the Cisco device chassis and
provides device-monitoring functions and fundamental troubleshooting
capabilities. May be integrated with a number of SNMP-based network
management platforms.

Class A network

Part of the Internet Protocol hierarchical addressing

scheme. Class A networks have only 8 bits for defining networks and 24 bits
for defining hosts on each network.

Class B network

Part of the Internet Protocol hierarchical addressing

scheme. Class B networks have 16 bits for defining networks and 16 bits for
defining hosts on each network.

Class C network

Part of the Internet Protocol hierarchical addressing

scheme. Class C networks have 24 bits for defining networks and only 8 bits
for defining hosts on each network.

classical IP over ATM

Defined in RFC 1577, the specification for running

IP over ATM that maximizes ATM features. Also known as "CIA."

classless routing

Routing that sends subnet mask information in the

routing updates. Classless routing allows Variable-Length Subnet Mask
(VLSM) and supernetting. Routing protocols that support classless routing
are RIP version 2, EIGRP, and OSPF.

CLI

Command Line Interface: Allows you to configure Cisco routers and

switches with maximum flexibility.

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