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Equal Cost Multi-Path (ECMP)
Equal cost multi-path (ECMP) is supported on the Dell Networking OS.
Topics:
• ecmp-group
• hash-algorithm
• hash-algorithm ecmp
• hash-algorithm seed
• ip ecmp-group
• link-bundle-distribution trigger-threshold
• link-bundle-monitor enable
• show config
• show link-bundle distribution
ecmp-group
Provides a mechanism to monitor traffic distribution on an ECMP link bundle. A system log is generated when the standard
deviation of traffic distribution on a member link exceeds a defined threshold.
Syntax
ecmp-group {ecmp-group-id interface interface | link-bundle-monitor}
To remove the selected interface, use the ecmp-group no interface command.
To disable link bundle monitoring, use the ecmp-group no link-bundle-monitor command.
Parameters
ecmp-group ID Enter the identifier number for the ECMP group. The range is from 2 to 64.
interface Enter the following keywords and slot/port to add the interface to the ECMP
group:
● 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then
the slot/port information.
link-bundle-
monitor
Enter the keywords link-bundle-monitor to enable link bundle monitoring.
Defaults Off
Command Modes
● CONFIGURATION
● CONFIGURATION ECMP-GROUP
Supported Modes Full–Switch
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
hash-algorithm
Changes the hash algorithm used to distribute traffic flows across a Port Channel.
Syntax
hash-algorithm {algorithm-number | {ecmp {crc16 | crc16cc | crc32MSB |
crc32LSB | crc-upper | dest-ip | lsb | xor1 | xor2 | xor4 | xor8 | xor16}
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Equal Cost Multi-Path (ECMP) 419