This object represents the higher word value of the
counter associated with CRC errors.
This object has a valid value only for interfaces that
provide CRC error monitoring.
NOTE: The object cmPhyRxCRC contains the
lower 32 bits of this counter value. If the error count is
greater than 4,294,967,295 the higher word value
will be stored in this object. SNMP v2c or v3
managers can use the cmPhyHCRxCRC object
directly which is a 64 bit counter.