Increase sendspace an recvspace depending which way your data is going: net.inet.tcp.sendspace: 57344 net.inet.tcp.recvspace: 256000
TCP window scaling is enabled by default nowadays if I remember correctly. Pete Morgan wrote:
Hi. I'm trying som file transfers across the globe. The RTT is almost 400ms and the transfer rate is painfully slow. There are 24 router hops on the path and I assume most of the problem is there but I wonder if there are any sysctl variables I can trim on my side to help this problem slightly? I seem to understand that there need to be an ACK received for at least every other packet or at least every 100ms for the data flow to proceed uninterrupted but I'm no expert in this field so please correct me if I'm wrong. Assuming this IS correct, are there any sysctl variables I can optimize to change this behaviour or will that affect low latency connections negatively. Any other suggestions? Regards Morgan _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
_______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
