This counts the number of times a TCP connection underlying this FCIP link was closed down specifically because it accumulated too many errors. This counter tells an admin the connection did not just time out or get administratively torn down -- it was actively terminated due to a detected error threshold, which points more specifically at a degrading or noisy IP path as the root cause. A link that keeps re-establishing its TCP connection every few hours, each time incrementing this specific counter, indicates a chronically error-prone IP path rather than a one-time event.