nanog mailing list archives
Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3)
From: Cameron Byrne <cb.list6 () gmail com>
Date: Wed, 29 Jun 2011 13:53:44 -0700
On Wed, Jun 29, 2011 at 1:48 PM, Mikael Abrahamsson <swmike () swm pp se> wrote:
On Wed, 29 Jun 2011, Cameron Byrne wrote:Sounds like a vendor specific issue :(Absolutely, but this is way too typical for these kinds of networks.Good tcp vs default tcp will not close the window tight due to some ephemeral loss or delay. The penalties are generally too strong in tcp for the issues of delay and loss in 3g ... this is one of the main selling points for tcp proxies .... but better done with modern tcp on the clients instead of a middle boxFor what kind of devices? I can get full speed (870 kilobyte/s) on 7.2 HSPA with single TCP stream on a linux box. Are you referring to handsets that get improvement on high latency links?
Yes. Smartphones on UMTS/HSPA have poor bandwidth-delay product, hence it being common for mobile providers to proxy the TCP to open windows faster. Cameron
-- Mikael Abrahamsson email: swmike () swm pp se
Current thread:
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3), (continued)
- 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) Mikael Abrahamsson (Jun 28)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Tony Finch (Jun 29)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Nick Hilliard (Jun 29)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Mikael Abrahamsson (Jun 29)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Cameron Byrne (Jun 29)
- RE: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Leigh Porter (Jun 29)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Mikael Abrahamsson (Jun 29)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Cameron Byrne (Jun 29)
- Re: Strange TCP connection behavior 2.0 RC2 (+3) Ryan Malayter (Jun 29)
- Re: Strange TCP connection behavior 2.0 RC2 (+3) Steven Bellovin (Jun 29)
- Re: Strange TCP connection behavior 2.0 RC2 (+3) Cameron Byrne (Jun 29)
- Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3) Hank Nussbacher (Jun 29)