Specifications

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Catalyst 2950 and Catalyst 2955 Switch Command Reference
78-15304-01
Preface
Audience
This guide is for the networking professional using the Cisco IOS command-line interface (CLI) to
manage the Catalyst 2950 and Catalyst 2955 switches, hereafter referred to as the switch. Before using
this guide, you should have experience working with the Cisco IOS and be familiar with the concepts
and terminology of Ethernet and local area networking.
Purpose
The Catalyst 2950 switch is supported by either the standard software image (SI) or the enhanced
software image (EI). The Catalyst 2955 switch uses only the EI. The enhanced software image provides
a richer set of features, including access control lists (ACLs), enhanced quality of service (QoS) features,
extended-range VLANs, the IEEE 802.1W Rapid Spanning Tree Protocol (RSTP), the IEEE 802.1S Multiple
Spanning Tree Protocol (MSTP), and and Remote Switched Port Analyzer (RSPAN).
The software supports the switches listed in the release notes and in this table:
Switch
Software
Image
Catalyst 2950-12 SI
Catalyst 2950-24 SI
Catalyst 2950C-24 EI
Catalyst 2950G-12-EI EI
Catalyst 2950G-24-EI EI
Catalyst 2950G-24-EI-DC EI
Catalyst 2950G-48-EI EI
Catalyst 2950SX-24 SI
Catalyst 2950T-24 EI
Catalyst 2955C-12 EI
Catalyst 2955S-12 EI
Catalyst 2955T-12 EI