Milan Technology MIL-SM2401MAF - Manual (Page 95)

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Collisions Retry Forever: Disable In half duplex, if happen collision will retry 48
times and then drop frame. Enable – In half duplex, if happen collision will retry
forever
Hash Algorithm: This Hash Algorithm is for hardware maintain on MAC table
calculation. Provide CRC or Direct Map
IFG compensation: Disable or Enable
Misc Configuration interface