https://community.netapp.com/t5/ONTAP-Discussions/snapmirror-tcp-window-size/m-p/91159#M19329 Default TCP window size in SnapMirror is 2MB. This is decribed in TR-3446 page 37. There are no way other than snapmirror.conf to tune TCP window size.<BR /><BR /><A target="_blank" href="http://www.netapp.com/us/media/tr-3446.pdf">http://www.netapp.com/us/media/tr-3446.pdf</A> Mon, 06 Oct 2014 13:32:07 GMT YIshikawa 2014-10-06T13:32:07Z https://community.netapp.com/t5/ONTAP-Discussions/snapmirror-tcp-window-size/m-p/91113#M19327 <P>I&nbsp;know that there is a way to specify the TCP window size in the snapmirror.conf, but is there a way to specify the tcp window size if I run snapmirror using cli, such as snapmirror initialize or snapmirror&nbsp;update?&nbsp;I don't see&nbsp;an option to specify it. Does it just use a default tcp window size and if it is default,&nbsp;what is that default?</P> Thu, 05 Jun 2025 05:27:44 GMT https://community.netapp.com/t5/ONTAP-Discussions/snapmirror-tcp-window-size/m-p/91113#M19327 _NETAPPUSER 2025-06-05T05:27:44Z https://community.netapp.com/t5/ONTAP-Discussions/snapmirror-tcp-window-size/m-p/91159#M19329 Default TCP window size in SnapMirror is 2MB. This is decribed in TR-3446 page 37. There are no way other than snapmirror.conf to tune TCP window size.<BR /><BR /><A target="_blank" href="http://www.netapp.com/us/media/tr-3446.pdf">http://www.netapp.com/us/media/tr-3446.pdf</A> Mon, 06 Oct 2014 13:32:07 GMT https://community.netapp.com/t5/ONTAP-Discussions/snapmirror-tcp-window-size/m-p/91159#M19329 YIshikawa 2014-10-06T13:32:07Z