CHAPTER
1-1
Catalyst 3750 Switch Software Configuration Guide
OL-8550-02
1
Overview
This chapter provides these topics about the Catalyst 3750 switch software:
• Features, page 1-1
• Default Settings After Initial Switch Configuration, page 1-12
• Network Configuration Examples, page 1-15
• Where to Go Next, page 1-27
Unless otherwise noted, the term switch refers to a standalone switch and to a switch stack.
In this document, IP refers to IP Version 4 (IPv4) unless there is a specific reference to IP Version 6
(IPv6).
Features
The switch ships with either of these software images installed:
• IP base image (formerly known as the standard multilayer image [SMI]), which provides Layer 2+
features (enterprise-class intelligent services). These features include access control lists (ACLs),
quality of service (QoS), static routing, EIGRP stub routing, the Hot Standby Router Protocol
(HSRP), and the Routing Information Protocol (RIP). Switches with the IP base image installed can
be upgraded to IP services image (formerly known as the enhanced multilayer image [EMI].)
• IP services image, which provides a richer set of enterprise-class intelligent services. It includes all
IP base image features plus full Layer 3 routing (IP unicast routing, IP multicast routing, and
fallback bridging). To distinguish it from the Layer 2+ static routing and RIP, the IP services image
includes protocols such as the Enhanced Interior Gateway Routing Protocol (EIGRP) and the Open
Shortest Path First (OSPF) Protocol.
IP services image-only Layer 3 features are described in the “Layer 3 Features” section on
page 1-11.
Note Unless otherwise noted, all features described in this chapter and in this guide are supported on
both the IP base image and IP services image.
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