Reference Guide

NOTE: While the seed is stored separately on each port-pipe, the same seed is used
across all CAMs.
You cannot separate LAG and ECMP but you can use different algorithms across the
chassis with the same seed. If LAG member ports span multiple port-pipes and line cards,
set the seed to the same value on each port-pipe to achieve deterministic behavior.
If the hash algorithm configuration is removed, the hash seed does not go to the original
factory default setting.
ip ecmp-group
Enable and specify the maximum number of ecmp that the L3 CAM hold for a route, By default, when maximum paths are
not configured, the CAM can hold a maximum of 16 ecmp per route.
S4820T
Syntax
ip ecmp-group {maximum-paths | {number} {path-fallback}
To negate a command, use the no ip ecmp-group maximum-paths {number}
command.
Parameters
maximum-paths Specify the maximum number of ECMP for a route. The range is 2 to
64.
path-fallback Use the keywords path-fallback to enable this feature. If you
enable the feature, re-enter this keyword to disable the feature.
Defaults 16
Command Modes CONFIGURATION
Command History
Version 9.0.0.0 Introduced on the Z9000.
Version 8.3.10.0 Introduced on the S4810.
Usage
Information
You must save the new ECMP settings to the startup-config (write-mem) then reload the
system for the new settings to take effect.
Related
Commands
show ip cam stack-unit – Display content-addressable memory (CAM) entries for an S-Series
switch.
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