CHAPTER
34-1
Catalyst 3750 Switch Software Configuration Guide
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34
Configuring IP Unicast Routing
This chapter describes how to configure IP unicast routing on the Catalyst 3750 switch. Unless otherwise
noted, the term switch refers to a standalone switch and a switch stack. A switch stack operates and
appears as a single router to the rest of the routers in the network. Basic routing functions, including
static routing and the Routing Information Protocol (RIP), are available with both the standard
multilayer software image (SMI) and the enhanced multilayer image (EMI). To use advanced routing
features and other routing protocols, you must have the enhanced multilayer image installed on the
standalone switch or on the stack master.
For more detailed IP unicast configuration information, refer to the Cisco IOS IP Configuration Guide,
Release 12.1 For complete syntax and usage information for the commands used in this chapter, refer to
these command references:
• Cisco IOS IP Command Reference, Volume 1 of 3: Addressing and Services, Release 12.2
• Cisco IOS IP Command Reference, Volume 2 of 3: Routing Protocols, Release 12.2
• Cisco IOS IP Command Reference, Volume 3 of 3: Multicast, Release 12.2
This chapter consists of these sections:
• Understanding IP Routing, page 34-2
• Steps for Configuring Routing, page 34-4
• Configuring IP Addressing, page 34-5
• Enabling IP Unicast Routing, page 34-19
• Configuring RIP, page 34-20
• Configuring OSPF, page 34-25
• Configuring EIGRP, page 34-34
• Configuring BGP, page 34-40
• Configuring Protocol-Independent Features, page 34-60
• Monitoring and Maintaining the IP Network, page 34-74
Note When configuring routing parameters on the switch and to allocate system resources to maximize the
number of unicast routes allowed, you can use the sdm prefer routing global configuration command
to set the Switch Database Management (sdm) feature to the routing template. For more information on
the SDM templates, see Chapter 8, “Configuring SDM Templates” or refer to the sdm prefer command
in the command reference for this release.
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