Specifications

CHAPTER
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8-1
Cisco Nexus 3000 Series NX-OS Unicast Routing Configuration Guide, Release 5.0(3)U2(2)
OL-25782-02
8
Configuring ECMP for Host Routes
This chapter describes how to configure the equal-cost multipathing (ECMP) protocol for host routes on
the Cisco NX-OS switch.
This chapter includes the following sections:
• Information About ECMP for Host Routes, page 8-1
• Licensing Requirements for ECMP for Host Routes, page 8-1
• Prerequisites for ECMP for Host Routes, page 8-2
• Default Settings, page 8-2
• Configuring ECMP for Host Routes, page 8-2
• Verifying the ECMP for Host Routes Configuration, page 8-4
• Configuration Examples for ECMP for Host Routes, page 8-4
• Additional References, page 8-4
• Feature History for ECMP for Host Routes, page 8-5
Information About ECMP for Host Routes
When you enable ECMP support for host routes, all unicast host routes are programmed into the
longest-prefix match algorithm (LPM) table. ECMP for host routes is provided in the switch hardware.
You configure this feature in the CLI using the hardware profile unicast enable-host-ecmp command.
Note Host entries are stored in the LPM routing table instead of the host table when ECMP is configured for
IPv4 (/32) routes and IPv6 (/128) routes.
Licensing Requirements for ECMP for Host Routes
The following table shows the licensing requirements for this feature: