Managing ECMP Group PathsTo manage ECMP group paths, you can configure the maximum number of paths for an ECMP route that theL3 CAM can hold to avoid path degeneration. When you do not configure the maximum number of routes,the CAM can hold a maximum ECMP per route.To configure the maximum number of paths, use the following command.NOTE: Save the new ECMP settings to the startup-config (write-mem) then reload the system for thenew settings to take effect.• Configure the maximum number of paths per ECMP group.CONFIGURATION mode.ip ecmp-group maximum-paths {2-64}• Enable ECMP group path management.CONFIGURATION mode.ip ecmp-group path-fallbackExample of the ip ecmp-group maximum-paths CommandDell(conf)#ip ecmp-group maximum-paths 3User configuration has been changed. Save the configuration and reload to takeeffectDell(conf)#Creating an ECMP Group BundleWithin each ECMP group, you can specify an interface.If you enable monitoring for the ECMP group, the utilization calculation is performed when the averageutilization of the link-bundle (as opposed to a single link within the bundle) exceeds 60%.1 Create a user-defined ECMP group bundle.CONFIGURATION modeecmp-group ecmp-group-idThe range is from 1 to 64.2 Add interfaces to the ECMP group bundle.CONFIGURATION ECMP-GROUP modeinterface interface interface tengigabitethernet 0/0 interface port-channel 1003 Enable the monitoring for the bundle.CONFIGURATION ECMP-GROUP modelink-bundle-monitor enableEqual Cost Multi-Path (ECMP) 415
