Reference Guide

hash-algorithm
Changes the hash algorithm that distributes trac ows across ECMP paths and the LAG.
Syntax
hash-algorithm {ecmp | lag} {crc | xor | random}
Parameters
• ecmp — Enables ECMP hash conguration.
• lag — Enables LAG hash conguration for L2 only.
• crc — Enables CRC polynomial for hash computation.
• xor — Enables upper 8 bits of CRC and lower 8 bits of XOR value for computation.
• random — Enables a hash algorithm random value for ECMP or LAG 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
load-balancing
Distributes or load balances incoming trac using the default parameters in the hash algorithm.
Syntax
load-balancing {ingress-port enable | [tcp-udp-selection l4–destination-port |
l4–source-port] | [ip-selection destination-ip | source-ip | protocol | vlan-id
| l4–destination-port | l4–source-port] | [ipv6–selection destination-ip |
Layer 3 309