To see the live value of the advertised windows size at any point in time for any connection on a node: Default CIFS TCP window size on the controller is 17520 bytes, but can be increased to 8387700 b...To see the live value of the advertised windows size at any point in time for any connection on a node: Default CIFS TCP window size on the controller is 17520 bytes, but can be increased to 8387700 bytes. Is the TCP Window Size configurable in ONTAP? - NetApp Knowledge Base How to increase the TCP window to its maximum setting for Data ONTAP 7-Mode - NetApp Knowledge Base What is the default, minimum, maximum, and recommended value for cifs.tcp_window_size in Data ONTAP 7-Mode?