Reference Guide

512 | Equal Cost Multi-Path
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Parameters
Defaults
Off
Command Modes
CONFIGURATION
CONFIGURATION ECMP-GROUP
Command
History
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Usage
Information
Using the Configuration command mode, create an ECMP group ID. Interfaces can
then be assigned to the ECMP group using the CONFIGURATION ECMP-GROUP
command mode. Link bundle monitoring can be enabled on the port-channel
configuration using the CONFIGURATION ECMP-GROUP command mode.
hash-algorithm
e z
Change the hash algorithm used to distribute traffic flows across a Port Channel. The
ECMP and LAG options are supported on the Z-Series.The ECMP, LAG, and line
card options are supported on the E-Series TeraScale and ExaScale chassis.
Syntax
hash-algorithm
{algorithm-number | {ecmp {crc16 | crc16cc | crc32MSB | crc32LSB |
crc-upper | dest-ip | lsb | xor1 | xor2 | xor4 | xor8 | xor16} [number] hg {crc16 |
crc16cc | crc32MSB | crc32LSB | xor1 | xor2 | xor4 | xor8 | xor16} stack-unit
stack-unit-number | port-set port-pipe | hg-seed seed-value stack-unit | lag
{checksum | crc | xor} [number] nh-ecmp {checksum | crc | xor}[number] linecard
number ip-sa-mask value ip-da-mask value | seed seed-value }
To return to the default hash algorithm, use the
no hash-algorithm command.
To return to the default Equal-cost Multipath Routing (ECMP) hash algorithm, use
the
no hash-algorithm ecmp algorithm-value command.
To remove the hash algorithm on a particular line card, use the
no hash-algorithm
linecard
number command.
ecmp-group ID
Enter the identifier number for the ECMP group.
Range: 2 to 64.
interface
Enter the following keywords and slot/port to add the interface to the
ECMP group.
• For a 1-Gigabit Ethernet interface, enter the keyword
GigabitEthernet followed by the slot/port information.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet followed by the slot/port information.
• For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE
followed by the slot/port information.
• For a LAG interface, enter the keyword port-channel followed by the
slot/port information.
Range: 1 to 128.
Version 9.0.0.0 Introduced on the Z9000.
Version 8.3.10.0 Introduced on S4810