Administrator Guide

ip ecmp-group path-fallback
DellEMC(conf)#ip ecmp-group maximum-paths 3
User configuration has been changed. Save the configuration and reload to take effect
DellEMC(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.
• Modify the threshold for monitoring ECMP group bundles.
CONFIGURATION mode
link-bundle-distribution trigger-threshold {percent}
The range is from 1 to 90%.
The default is 60%.
• Display details for an ECMP group bundle.
EXEC mode
show link-bundle-distribution ecmp-group ecmp-group-id
The range is from 1 to 64.
NOTE:
An ecmp-group index is generated automatically for each unique ecmp-group when you configure multipath
routes to the same network. The system can generate a maximum of 512 unique ecmp-groups. The ecmp-group indices
are generated in even numbers (0, 2, 4, 6... 1022) and are for information only.
You can configure ecmp-group with id 2 for link bundle monitoring. This ecmp-group is different from the ecmp-group
index 2 that is created by configuring routes and is automatically generated. These two ecmp-groups are not related in
any way.
DellEMC(conf-ecmp-group-5)#show config
!
ecmp-group 5
interface gigabitethernet 1/2
interface gigabitethernet 1/3
link-bundle-monitor enable
DellEMC(conf-ecmp-group-5)#
256
Equal Cost Multi-Path (ECMP)