Re: [Openvpn-devel] Does the OpenVPN protocol itself handle windowing?

2018-05-04 Thread Jan Just Keijser
Hi Derek, On 04/05/18 18:02, Derek Zimmer wrote: Based on the feedback we've gotten so far. I think we need to get some hard data on the latency scaling to confirm my earlier observations. how do you simulate latency? or do you actually have high latency machines? try playing with --sndbuf

Re: [Openvpn-devel] Does the OpenVPN protocol itself handle windowing?

2018-05-04 Thread Jan Just Keijser
Hi, see some comments inline On 04/05/18 16:41, Derek Zimmer wrote: Hello everyone, Derek from OSTIF here. I've been working with OpenVPN for a few years and there's a few curious performance anomalies that i've ran into that add up to a possible performance opportunity. My experience lies

Re: [Openvpn-devel] Does the OpenVPN protocol itself handle windowing?

2018-05-04 Thread Arne Schwabe
> My network experience points to something going awry with windowing with > TCP, but UDP does not apply any sort of windowing (no ACKs = no > windowing) but the OpenVPN protocol itself does have an ACK system, > which suggests that OpenVPN may apply its own windowing. OpenVPN has a data channel

[Openvpn-devel] Does the OpenVPN protocol itself handle windowing?

2018-05-04 Thread Derek Zimmer
Hello everyone, Derek from OSTIF here. I've been working with OpenVPN for a few years and there's a few curious performance anomalies that i've ran into that add up to a possible performance opportunity. My experience lies closer to networking protocols and cryptography rather than programming,