Cisco WS-C3750-48PS-S Software Configuration Manual page 41

Overview
This chapter provides these topics about the Catalyst 3750 switch software:
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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).
Features
The Catalyst 3750 switches are shipped with either of these software images installed:
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Note
Some features noted in this chapter are available only on the cryptographic (that is, supports encryption)
versions of the SMI and EMI. You must obtain authorization to use this feature and to download the
cryptographic version of the software from Cisco.com. For more information, refer to the release notes
for this release.
78-16180-02
Features, page 1-1
Default Settings After Initial Switch Configuration, page 1-10
Network Configuration Examples, page 1-12
Where to Go Next, page 1-23
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,
and the Hot Standby Router Protocol (HSRP) and the Routing Information Protocol (RIP). Switches
with the SMI installed can be upgraded to the EMI.
Enhanced multilayer image (EMI), which provides a richer set of enterprise-class intelligent
services. It includes all SMI 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 EMI
includes protocols such as the Enhanced Interior Gateway Routing Protocol (EIGRP) and the Open
Shortest Path First (OSPF) Protocol.
EMI-only Layer 3 features are noted in the
Unless otherwise noted, all features described in this chapter and in this guide are supported on
both the SMI and EMI.
C H A P T E R
"Layer 3 Features" section on page
Catalyst 3750 Switch Software Configuration Guide
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1-8.
1-1