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35-1
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-06
35
Configuring IP Unicast Routing
This chapter describes how to configure IP Version 4 (IPv4) unicast routing on the Cisco ME 3400
Ethernet Access switch.
Note Routing is supported only on switches that are running the metro IP access image.
For more detailed IP unicast configuration information, see the Cisco IOS IP Configuration Guide,
Release 12.2 For complete syntax and usage information for the commands used in this chapter, see 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 35-2
• Steps for Configuring Routing, page 35-3
• Configuring IP Addressing, page 35-4
• Enabling IPv4 Unicast Routing, page 35-18
• Configuring RIP, page 35-19
• Configuring OSPF, page 35-24
• Configuring EIGRP, page 35-35
• Configuring BGP, page 35-43
• Configuring ISO CLNS Routing, page 35-64
• Configuring Multi-VRF CE, page 35-74
• Configuring Protocol-Independent Features, page 35-88
• Monitoring and Maintaining the IP Network, page 35-102
Note When configuring routing parameters on the switch to allocate system resources to maximize the number
of unicast routes allowed, you should use the sdm prefer default global configuration command to set
the Switch Database Management (sdm) feature to balance resource. The Layer-2 template does not
support routing and forces any routing to be done through software. This overloads the CPU and severely