This read-only Counter tallies the number of frames discarded due to a length violation in the egress direction. An administrator monitors this to detect outbound frames that fall outside the connection's permitted length bounds, which points to a misconfigured or misbehaving upstream data source. For example, a spike in xmtFramesLengthViolations on a channel after a change to an attached device's framing configuration would suggest that device is now generating frames of an invalid length for this connection.