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Term heading Description heading
The different hash algorithms are based on the number of ECMP group 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 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.
Z9500
Syntax
hash-algorithm hg {crc16 | xor1 | xor2 | xor4 | xor8 | xor16 |
crc16cc | crc32MSB | crc32LSB} linecard slot-id port-set port-
pipe
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.
linecard slot-id
port-set port-
pipe
Enter the line-card slot ID and port-pipe number for the set
of ports for which you want to redistribute traffic flows. The
range of Z9500 slot IDs is 0 to 2. The range of port-pipe
numbers is: 0 to 2 on line card 0; 0 to 3 on line cards 1 and
2.
Equal Cost Multi-Path (ECMP)
745