The value of tmnxPortLinkLengthInfo indicates the link length info stored in SFF EEPROMs. tmnxPortLinkLengthInfo is applicable only when tmnxPortSFPEquipped is 'true'; otherwise, all 6 bytes will have a value of '0'. See SFF Committee documents for details on the representation of the values in each byte. For SFP EEPROMs, the 6 bytes are bytes 14 to 19 of the A0 bank inclusive, described in SFF Committee document SFF-8472. For XFP EEPROMs, the first 5 bytes are bytes 142 to 146 of the 01 bank inclusive, described in SFF Committee document INF-8077i. For XFP EEPROMs, byte 6 will have a value of '0'.