This attribute indicates the total number of Path Code Violations
(PCVs) detected. Each PCV corresponds to a path BIP-8 error. PCV
counting is inhibited over second intervals where a Path Severely
Errored Second (PSES) is counted. Counting of PCVs is also
inhibited over second intervals where a Path Unavailable Second
(PUAS) is counted. The count wraps at its maximum value.