Dell S4820T Configuration Manual page 359

Viewing an ECMP Group
NOTE: An ecmp-group index generates 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.
Dell(conf-ecmp-group-5)#show config
!
ecmp-group 5
interface tengigabitethernet 1/2
interface tengigabitethernet 1/3
link-bundle-monitor enable
Dell(conf-ecmp-group-5)#
Equal Cost Multi-Path (ECMP)
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