Discuss EVDO PC Cards, ExpressCards, EVDO USB, PDAs, Phones, Coverage and Mobile Broadband Cards. Discuss Verizon and Sprint Coverage. CradlePoint CTR350 / PHS300/ MBR1000 & Kyocera KR1 / KR2 & LinkSys WRT54G3G-ST Forums!
EVDOforums.com
Discussion forum for EVDO users
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Our sites Include: EVDO Info :: EVDO Forums :: EVDO Maps :: EVDO Blog :: 3Gstore.com

To purchase your EVDO Card / Antenna / Amplifier / Router from the EVDO Experts, just contact us!

TCP Optimization, Windows Registry, MTU, RWIN

 
Post new topic   Reply to topic    EVDOforums.com Forum Index -> EVDO with a Wireless PC Data Card or ExpressCard
View previous topic :: View next topic  
Author Message
Michael
Site Admin


Joined: 13 Jan 2005
Posts: 5026
Location: Cary, IL

PostPosted: Mon Mar 07, 2005 9:50 am    Post subject: TCP Optimization, Windows Registry, MTU, RWIN Reply with quote

Hello,

I just posted a story and link to a web site that offers information on tweaking the Windows Registry for optimum TCP performance. Much of this can be applied to our EVDO connections. In fact, there is a download that automatically applies the settings for you.

If anyone has previously done these settings, or has additional info, please post it here for all to see.

http://www.EVDOInfo.com/Tips/PC_5220/Windows_2000%10XP_TCP_Registry_Tweaks_2005030787/


Last edited by Michael on Tue Mar 08, 2005 9:28 pm; edited 1 time in total
Back to top
View user's profile Send private message Send e-mail Visit poster's website AIM Address
Richard Carver
Guest





PostPosted: Mon Mar 07, 2005 2:13 pm    Post subject: Reply with quote

That's a good site, there's a tool called DrTCP available there which give you a graphical interface to manually adjust RWIN numbers.

I've been experimenting with it and this is what I got today with a 128480 setting.



You have to be careful if you exceed 65XXX to make sure you have windows scaling turned on. The V620 software automatically does that. I have set it as high as 513XXX but the 128480 setting seems best for my set up.

All these figures are without using Venturi.
Back to top
Michael
Site Admin


Joined: 13 Jan 2005
Posts: 5026
Location: Cary, IL

PostPosted: Mon Mar 07, 2005 3:30 pm    Post subject: Reply with quote

Interesting to know what the benchmarks were before you changed any settings.
Back to top
View user's profile Send private message Send e-mail Visit poster's website AIM Address
Richard Carver
Guest





PostPosted: Mon Mar 07, 2005 4:41 pm    Post subject: Reply with quote

The major difference is between the 5220 and the V620. I never got over 500 or so with the 5220 and 800-900 seems to be about average for the V620. There hasn't been a 10% variation in any of the combos I've tried.

I think the 5220 would have been a lot faster for me had I known how to alter the RWIN when I had it. It was set at 17,500 and I never changed it. The SW for the V620 set the RWIN at 62480 out of the box and I'm convinced that the big difference.
Back to top
Guest






PostPosted: Mon Mar 07, 2005 5:49 pm    Post subject: Reply with quote

Thanks Michael & Richard,

This is GREAT information.

I have a PC 5220 card and will be traveling at the end of the week and do some tweaking and testing and report the results here.
Back to top
Display posts from previous:   
Post new topic   Reply to topic    EVDOforums.com Forum Index -> EVDO with a Wireless PC Data Card or ExpressCard All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum








Sprint Rev A USB: Compass 597



Sprint Rev A ExpressCard: Merlin EX720


Purchase an V740 Rev A ExpressCard


Sprint U727


CTR350 Router


CradlePoint PHS300


Purchase a MBR1000


Purchase an EVDO Booster Antenna

Purchase a LinkSys 3G Router



Purchase an EVDO Amplifier


Your Mac EVDO Experts









EVDO Antenna Booster





Digg Us :: del.icio.us :: technorati :: furl

4G :: 4G Forums :: PHS300 :: MBR1000 :: KR2