nanog mailing list archives
Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3)
From: Mikael Abrahamsson <swmike () swm pp se>
Date: Tue, 28 Jun 2011 12:36:02 +0200 (CEST)
On Tue, 28 Jun 2011, Eugen Leitl wrote:
Even disabling window scaling and setting the window to 16MB makes no difference.
If you disable window scaling, you're limiting it to 64k.
However, we have tried different hardware (L3 switches, media convertes + laptops etc), and the symptoms still persist...
You should dump the traffic and analyse it in Wireshark, then you'll see if you have packet loss or not. Most likely you do not, and the reason for your problem is TCP setting related (see other posts with links).
Before you start replacing hw you should diagnose what your problem is, if you're not losing packets and the delay variation is constant, then it's not related to the network. Both of these factors can be seen using the built in tools in wireshark (Analyze->Expert info, and Statistics->TCP stream graph).
-- Mikael Abrahamsson email: swmike () swm pp se
Current thread:
- [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Eugen Leitl (Jun 28)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Jérôme Nicolle (Jun 28)
- RE: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Leigh Porter (Jun 28)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Mikael Abrahamsson (Jun 28)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) kristopher . doyen (Jun 28)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Dobbins, Roland (Jun 28)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Rhys Rhaven (Jun 28)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Andreas Ott (Jun 28)
- RE: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Leigh Porter (Jun 28)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Cameron Byrne (Jun 28)
- RE: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Leigh Porter (Jun 28)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Cameron Byrne (Jun 28)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) PC (Jun 28)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Cameron Byrne (Jun 28)
- RE: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Leigh Porter (Jun 28)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Jérôme Nicolle (Jun 28)