This read-write INTEGER specifies the maximum number of times the network handler times out waiting for acknowledgment of a control-plane blind message sent to another node. An administrator uses this to cap retries specifically for this distinct 'blind' message class, separate from the ordinary control-plane message retry ceilings. For example, exhausting this retry count for a blind message to an unresponsive node would cause the network handler to abandon that message rather than retry it further.