FTOS provides a CLI-based solution for modifying the hash seed to ensure that oneach configured system, the ECMP selection is same. When configured, the sameseed is set for ECMP, LAG, and NH, and is used for incoming traffic only.NOTE: While the seed is stored separately on each port-pipe, the same seed isused across all CAMs.You cannot separate LAG and ECMP but you can use different algorithmsacross the chassis with the same seed. If LAG member ports span multipleport-pipes and line cards, set the seed to the same value on each port-pipe toachieve deterministic behavior.If the hash algorithm configuration is removed, the hash seed does not go tothe original factory default setting.ip ecmp-groupEnable and specify the maximum number of ecmp that the L3 CAM hold for a route, By default, whenmaximum paths are not configured, the CAM can hold a maximum of 16 ecmp per route.S4810Syntax ip ecmp-group {maximum-paths | {number} {path-fallback}To negate a command, use the no ip ecmp-group maximum-paths {number}command.Parameters maximum-pathsSpecify the maximum number of ECMP for a route. Therange is 2 to 64.path-fallback Use the keywords path-fallback to enable this feature. Ifyou enable the feature, re-enter this keyword to disable thefeature.Defaults 16CommandModesCONFIGURATIONCommandHistory Version 9.0.2.0 Introduced on the S6000.Version 9.0.0.0 Introduced on the Z9000.Version8.3.10.0Introduced on the S4810.UsageInformationYou must save the new ECMP settings to the startup-config (write-mem) thenreload the system for the new settings to take effect.Equal Cost Multi-Path (ECMP) 643
