Administrator Guide

Term heading Description heading
various test scenarios, but if the default algorithm does not provide satisfactory
distribution of traffic, use this command to designate another algorithm.
When a member leaves or is added to the ECMP group, the hash algorithm is
recalculated to balance traffic across the members.
hash-algorithm hg
To distribute traffic flows across different internal HiGig links, change the hash algorithm.
Z9000
Syntax
hash-algorithm hg {crc16 | xor1 | xor2 | xor4 | xor8 | xor16 |
crc16cc | crc32MSB | crc32LSB} stack-unit number port-set
number
Parameters
crc16 Use CRC16_BISYNC — 16 bit CRC16-bisync polynomial
(default).
xor1 Use CRC16_BISYNC_AND_XOR1 — Upper 8 bits of CRC16-
BISYNC and lower 8 bits of xor1.
xor2 Use CRC16_BISYNC_AND_XOR2 — Upper 8 bits of CRC16-
BISYNC and lower 8 bits of xor2.
xor4 Use CRC16_BISYNC_AND_XOR4 — Upper 8 bits of CRC16-
BISYNC and lower 8 bits of xor4.
xor8 Use CRC16_BISYNC_AND_XOR8 — Upper 8 bits of CRC16-
BISYNC and lower 8 bits of xor8.
xor16 Use CR16 — 16 bit XOR.
crc16cc Use CRC16_CCITT — 16 bit CRC16 using CRC16-CCITT
polynomial.
crc32MSB Use CRC32_UPPER — MSB 16 bits of computed CRC32.
crc32LSB Use CRC32_LOWER — LSB 16 bits of computed CRC32.
stack-unit unit
number
Enter the keywords stack-unit then the stack unit number.
The range is from 0 to 7.
port-set port-
pipe
Enter the keywords port-set then the port pipe number.
The range is from 0 to 5.
Defaults crc16 algorithm
Command
Modes
CONFIGURATION
Equal Cost Multi-Path (ECMP)
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