This read-only Counter reports the number of parity errors detected when the LANCE Ethernet controller was accessing local memory, which the description notes would normally indicate a hardware problem. An admin would treat a rising count here, much like the PIC-level parity error counters, as justification for replacing the interface hardware. For example, a growing cntdot3LanceParityErrs count on one interface while sibling interfaces remain clean would isolate the memory problem to that specific card.