Reference Guide

ECMP commands
hash-algorithm
Changes the hash algorithm that distributes trac ows across ECMP paths and the LAG.
Syntax
hash-algorithm {ecmp | lag} crc
Parameters
• ecmp — Enables ECMP hash conguration.
• lag — Enables LAG hash conguration for L2 only.
• crc — Enables CRC polynomial for hash computation.
Default
crc
Command Mode CONFIGURATION
Usage Information
The hash value calculated with this command is unique to the entire system. Dierent hash algorithms are based
on the number of port-channel members and packet values. The default hash algorithm yields the most balanced
results in various test scenarios, but if the default algorithm does not provide a satisfactory distribution of trac,
use this command to designate another algorithm.
When a port-channel member leaves or is added to the port-channel, the hash algorithm is recalculated to balance
trac across the members. The no version of this command returns the value to the default.
Example
OS10(config)# hash-algorithm lag crc
Supported Releases 10.3.0E or later
link-bundle-utilization trigger-threshold
Congures a threshold value to trigger monitoring of trac distribution on an ECMP link bundle.
Syntax
link-bundle-trigger-threshold value
Parameters value — Enter a link bundle trigger threshold value (0 to 100).
Defaults Not congured
Command Mode CONFIGURATION
Usage Information The no version of this command disables the conguration.
Example
OS10(config)# link-bundle-trigger-threshold 80
Supported Releases 10.2.0E or later
356 Layer 3