Dell Force10 S4810P, Справочное руководство

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Usage
Information Using CONFIGURATION mode, create an ECMP group ID. You can then assign interfaces to the
ECMP group using CONFIGURATION ECMP-GROUP mode. You can also enable on the port-
channel configuration using the CONFIGURATION ECMP-GROUP command mode.
hash-algorithm
Changes 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 only on the E-Series TeraScale and
ExaScale chassis.
E-Series, Z-Series, S4810
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 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.
Parameters
algorithm-number
Enter the algorithm number. The range is 0 to 47.
ecmp
crc16
|
crc16cc
|
crc32MSB
|
crc32LSB
|
crc-
upper
|
dest-ip
|
lsb
|
xor1
|
xor2
|
xor4
|
xor8
|
xor16
TeraScale and ExaScale Only: Enter the keyword
ecmp
followed by
one of the following options:
•
crc16
: Use CRC16_BISYNC - 16 bit CRC16-bisync polynomial
(default)
•
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
•
crc-upper
: Uses the upper 32 bits of the key for the hash
computation
•
dest-ip
: Uses the destination IP for ECMP hashing
•
lsb
: Returns the LSB of the key as the hash
•
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
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