ClusterIfIslDownWarn_Alert is reported in event logs for the ISL ports, when the cluster switches are being replaced by another model: The alerts reported for the new set of cluster switches are clear...ClusterIfIslDownWarn_Alert is reported in event logs for the ISL ports, when the cluster switches are being replaced by another model: The alerts reported for the new set of cluster switches are cleared but the alerts for old switches are not cleared. The output of system cluster-switch show command reports 4 cluster switches instead of 2. The output of the "device-discovery show" command confirms that the cluster ports are connected to the new cluster switches.