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Catalyst 2950 Desktop Switch Software Configuration Guide
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Preface
Organization
This guide does not describe system messages you might encounter or how to install your switch. For
more information, refer to the Catalyst 2950 Desktop Switch System Message Guide for this release and
to the Catalyst 2950 Desktop Switch Hardware Installation Guide.
Note This guide does not repeat the concepts and CLI procedures provided in the standard Cisco IOS
Release 12.1 documentation. For information about the standard IOS Release 12.1 commands, refer to
the IOS documentation set available from the Cisco.com home page at Service and Support >
Technical Documents. On the Cisco Product Documentation home page, select Release 12.1 from the Cisco
IOS Software drop-down list.
Note This guide describes the features for Catalyst 2950 switches. Cisco IOS Release 12.1(11)EA1 is not for
use with the Long-Reach Ethernet (LRE) switches. Do not install release 12.1(11)EA1 on Catalyst 2950
LRE switches, and do not install release 12.1(11)YJ on non-LRE switches.
Organization
This guide is organized into these chapters:
Chapter 1, “Overview,” lists the software features of this release and provides examples of how the
switch can be deployed in a network.
Chapter 2, “Using the Command-Line Interface,” describes how to access the command modes, use the
CLI, and describes CLI messages that you might receive. It also describes how to get help, abbreviate
commands, use no and default forms of commands, use command history and editing features, and how
to search and filter the output of show and more commands.
Chapter 3, “Getting Started with CMS,” describes the CMS web-based, switch management interface.
For information about configuring your web browser and accessing CMS, refer to the release notes. For
field-level descriptions of all CMS windows and procedures for using the CMS windows, refer to the
online help.
Chapter 4, “Assigning the Switch IP Address and Default Gateway,” describes how to create the initial
switch configuration (for example, assign the switch IP address and default gateway information) by
using a variety of automatic and manual methods.
Chapter 5, “Configuring IE2100 CNS Agents,” describes how to configure Cisco Intelligence Engine 2100
(IE2100) Series Cisco Networking Services (CNS) embedded agents on your switch. By using the
IE2100 Series Configuration Registrar network management application, you can automate initial
configurations and configuration updates by generating switch-specific configuration changes, sending them
to the switch, executing the configuration change, and logging the results.
Chapter 6, “Clustering Switches,” describes switch clusters and the considerations for creating and
maintaining them. The online help provides the CMS procedures for configuring switch clusters.
Configuring switch clusters is most easily performed through CMS; therefore, CLI procedures are not
provided. Cluster commands are described in the Catalyst 2950 Desktop Switch Command Reference.
Chapter 7, “Administering the Switch,” describes how to perform one-time operations to administer
your switch. It describes how to prevent unauthorized access to your switch through the use of
passwords, privilege levels, the Terminal Access Controller Access Control System Plus (TACACS+),
and the Remote Authentication Dial-In User Service (RADIUS) and the Secure Shell (SSH) Protocol. It
also describes how to set the system date and time, set system name and prompt, create a login banner,
and how to manage the MAC address and Address Resolution Protocol (ARP) tables.