Users Guide

Table Of Contents
Important notes
Resilient hashing on port channels applies only for unicast traffic.
For resilient hashing on ECMP groups, the ECMP path must be in multiples of 64. Before you enable resilient hashing,
ensure that the maximum ECMP path is set to a multiple of 64. You can configure this value using the ip ecmp-group
maximum-paths command.
Maximum ECMP groups and paths
The maximum number of ECMP groups supported on the switch depends on the maximum ECMP paths configured on the
switch. To view the maximum number of ECMP groups and paths, use the show ip ecmp-group details command.
OS10# show ip ecmp-group details
Maximum Number of ECMP Groups : 256
Maximum ECMP Path per Group : 64
Next boot configured Maximum ECMP Path per Group : 64
The default value for the maximum number of ECMP paths per group is 64. This value is configurable and you can configure a
maximum of up to 128 ECMP paths per group.
The Maximum ECMP Path per Group is the current value configured in the hardware. The Next boot configured
Maximum ECMP Path per Group is the value that is configured for maximum ECMP path and will take effect after the next
reboot.
You can increase or decrease the maximum number of ECMP groups using the ip ecmp-group maximum-paths number
command. The number of ECMP groups is inversely proportional to the number of ECMP paths.
To configure maximum paths per ECMP route:
OS10# configure terminal
OS10(config)# ip ecmp-group maximum-paths 10
OS10(config)# exit
OS10# write memory
OS10# reload
Layer 3
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