SnapMirror が「 CSM ： Request was cancelled because of a connection failure. 」というメッセージで失敗します

SnapMirror の初期化または更新が次のエラーで失敗する：

Transfer failed. (Replication operation request failed from Cluster Id: XXXXXXXXXX, Node Id: XXXXXXXXXX to Cluster Id: XXXXXXXXXX, Node Id: XXXXXXXXXX due to a network error (CSM: Request was canceled because of a connection failure.))