This Counter32 object counts packets received by a port that are longer than 1522 bytes and have either an FCS error or an alignment error, indicating a device that transmitted an oversized, corrupted frame. An admin chasing intermittent link errors watches this counter to identify a jabbering NIC, a known failure mode where a faulty network card sends garbled oversized frames continuously. For example, a port with a rapidly rising jabber count would lead the admin to suspect the attached device's network interface is malfunctioning and needs replacement.