Managing Ecmp Group Paths; Creating An Ecmp Group Bundle; Modifying The Ecmp Group Threshold - Dell S3048-ON Configuration Manual

Interface Line Protocol
Gi 1/1 Up
Gi 1/1 Up

Managing ECMP Group Paths

To avoid path degeneration, configure the maximum number of paths for an ECMP route that the L3 CAM can hold. 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: For the new settings to take effect, save the new ECMP settings to the startup-config (write-mem) then reload the
system.
• 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-fallback
Example of the ip ecmp-group maximum-paths Command
Dell(conf)#ip ecmp-group maximum-paths 3
User configuration has been changed. Save the configuration and reload to take effect
Dell(conf)#

Creating an ECMP Group Bundle

Within each ECMP group, you can specify an interface.
If you enable monitoring for the ECMP group, the utilization calculation is performed when the average utilization of the link-bundle (as
opposed to a single link within the bundle) exceeds 60%.
1 Create a user-defined ECMP group bundle.
CONFIGURATION mode
ecmp-group ecmp-group-id
The range is from 1 to 64.
2 Add interfaces to the ECMP group bundle.
CONFIGURATION ECMP-GROUP mode
interface interface
3 Enable monitoring for the bundle.
CONFIGURATION ECMP-GROUP mode
link-bundle-monitor enable

Modifying the ECMP Group Threshold

You can customize the threshold percentage for monitoring ECMP group bundles.
To customize the ECMP group bundle threshold and to view the changes, use the following commands.
266 Equal Cost Multi-Path (ECMP)
Utilization[In Percent]
36
52