Platform Mac-Vlan-Hashing-Algorithm - Allied Telesis IE220 Series Manual

S C
WITCHING OMMANDS
- - -
PLATFORM MAC VLAN HASHING

platform mac-vlan-hashing-algorithm

Overview This command enables you to change the MAC VLAN hash-key-generating
algorithm.
The no variant of this command returns the hash-key algorithm to the default of
crc32l
Syntax platform mac-vlan-hashing-algorithm
{crc16l|crc16u|crc32l|crc32u}
no platform mac-vlan-hashing-algorithm
Default The hash-key algorithm is crc32l by default.
Mode Global configuration
Usage notes Occasionally, when using the Multiple Dynamic VLAN feature, a supplicant cannot
be authenticated because a collision occurs within the VLAN MAC table. This can
happen when more than four different MAC addresses produce the same
hash-key.
When this situation occurs, collisions can sometimes be avoided by changing the
hashing algorithm from its default of crc32l. Several different algorithms may need
to be tried to rectify the problem.
You must restart the switch for this command to take effect.
Note that this command is intended for technical support staff, or advanced end
users.
Example To change the hash-key generating algorithm applying to the lower bits of CRC-16,
use the command:
awplus#
awplus(config)#
Related platform l3-hashing-algorithm
commands
show platform
C613-50644-01 Rev B
ALGORITHM
Parameter Description
crc16l
The algorithm that will apply to the lower bits of CRC-16
crc16u
The algorithm that will apply to the upper bits of CRC-16
crc32l
The algorithm that will apply to the lower bits of CRC-32
crc32u
The algorithm that will apply to the upper bits of CRC-32
configure terminal
platform mac-vlan-hashing-algorithm crc16l
Command Reference for IE220 Series
AlliedWare Plus™ Operating System - Version 5.5.3-0.x
541