Specifications

CHAPTER
1-1
Catalyst 2950 and Catalyst 2955 Switch Command Reference
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Using the Command-Line Interface
The Catalyst 2950 and Catalyst 2955 switches are supported by Cisco IOS software. This chapter
describes how to use the switch command-line interface (CLI) to configure the software features.
For a complete description of the commands that support these features, see Chapter 2, “Cisco IOS
Commands.” For Catalyst 2955-specific commands for setting alarms, refer to Appendix A, “Catalyst
2955-Specific Alarm Commands.” For more information on Cisco IOS Release 12.1, refer to the Cisco
IOS Release 12.1 Command Summary.
For task-oriented configuration steps, refer to the software configuration guide for this release.
The switches are preconfigured and begin forwarding packets as soon as they are attached to compatible
devices.
By default, all ports belong to virtual LAN (VLAN) 1. Access to the switch itself is also through
VLAN 1, which is the default management VLAN. The management VLAN is configurable. You
manage the switch by using Telnet, Secure Shell (SSH) Protocol, web-based management, and Simple
Network Management Protocol (SNMP) through devices connected to ports assigned to the management
VLAN.
Type of Memory
The switch Flash memory stores the Cisco IOS software image, the startup and private configuration
files, and helper files.
Platforms
This IOS release runs on a variety of switches. For a complete list, refer to the release notes for this
software release.
Note This software release does not support the Catalyst 2950 LRE switches. For information about these
switches, refer to the Catalyst 2950 LRE switch release notes.