Simplespeed doesn't change MTU but only window size. (Confirmed by SB 2 weeks ago on this list). MTU is a registry change or router change. BTW.. the e-mail server did get a simplespeed treatment, and the router was changed 1460 MTU. Why can't MS just fix this issue!!!
scott ----- Original Message ----- From: "Tom Haynes" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, October 30, 2003 12:57 AM Subject: RE: [smartBridges] Figure this out if you can... > That is weird. Have you tried using simpleSpeed? > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Dan Petermann > Sent: Thursday, October 30, 2003 1:50 AM > To: [EMAIL PROTECTED] > Subject: Re: [smartBridges] Figure this out if you can... > > Check the MTU settings on the NIC. > I've had to play with this and set them lower (around 700). > The customer couldn't upload email, after setting the MTU > values he could, and at 240k on a 256k throttled link. > > You might want to have them change it and see what happens. > I used DrTCP (http://www.dslreports.com/front/drtcp.html) > > > > At 11:53 AM 10/29/2003 -0500, you wrote: > >Hi all, > > > >We all seem to have similar problems, don't we? > > > >Well, here is some imperical data for you that has me baffled currently... > > > >We have some customers on a tower that are having upload problems for e- > >mail/ VPN services. > > > >Data we know: > > > >A. High voltage lines in LOS path > > > >B. AP is a Cisco.. 100 mW transmit, 2 x 14 dbi 180 sectors, splitter > >(obviously), and one YDI 16dbi power gain amplifier (bi-driectional). > >This is the typical set-up used by BroadLink out of Santa Rosa CA. (or > >used to be) > > > >C. Customers have a Smartbridge AirBridge Total (ABT).. full transmit > >power. > > > >D. Customer shows a 87% Link quality and a -57 Rssi level. > > > >E. Cisco indicates Link quality is a 33% (yes low but usable) > > > >F. AP on Channel 6 v, large interference on Channel 9-11, no others at > >play. (btw, channel 1 showed same stuff) > > > >G. AP shows a packet loss transmitted to CPE at <1%, but retries at > >about 10% > > > >H. CPE shows packet loss at <1%, no retries. > > > >I. All negotiations are fine. (CPE 10/half, AP 100/full) > > > >J. Set to 11MBps autofallback.. negotiation always maintained at 11 > >Mbps. > > > >K. No bandwidth throttling.. backbone having no issue with traffic loads. > > > >L. Customer has router that sets MTU at 1460 > > > >M. RTS/CTS off, Frag 2336 (i.e. no frag threshold) > > > >OK.. so theories we have.. > > > >1. 11 Mbps for small (negotiation packets) and working, but as soon as > >packets get big, the problem, re-negotiate and that breaks the telnet > >session with the Mail server/VPN? We tried reducing frag level, but no > >affect. Have not tried to lower negotiation rate. > > > >2. Power lines causing interefence issue.. but then wouldn't we be > >seeing greater packet loss? > > > >3. Other customers blocking airwaves with packets? Again, would we not > >see packet losses greater? > > > >4.. Other thoughts (i.e Smartbridges not reporting packet loss > >correctly?) > > > >Scott > > > >----------ANNOUNCEMENT---------- > >Don't forget to register for WISPCON IV > >http://www.wispcon.info/us/wispcon-iv/wispcon-iv.htm > > > >The PART-15.ORG smartBridges Discussion List > >To Join: mailto:[EMAIL PROTECTED] (in the body type subscribe > >smartBridges <yournickname> > >To Remove: mailto:[EMAIL PROTECTED] (in the body type unsubscribe > >smartBridges) > >Archives: http://archives.part-15.org > > > ----------ANNOUNCEMENT---------- > Don't forget to register for WISPCON IV > http://www.wispcon.info/us/wispcon-iv/wispcon-iv.htm > > The PART-15.ORG smartBridges Discussion List > To Join: mailto:[EMAIL PROTECTED] (in the body type subscribe > smartBridges <yournickname> > To Remove: mailto:[EMAIL PROTECTED] (in the body type unsubscribe > smartBridges) > Archives: http://archives.part-15.org > > ----------ANNOUNCEMENT---------- > Don't forget to register for WISPCON IV > http://www.wispcon.info/us/wispcon-iv/wispcon-iv.htm > > The PART-15.ORG smartBridges Discussion List > To Join: mailto:[EMAIL PROTECTED] (in the body type subscribe smartBridges <yournickname> > To Remove: mailto:[EMAIL PROTECTED] (in the body type unsubscribe smartBridges) > Archives: http://archives.part-15.org > ----------ANNOUNCEMENT---------- Don't forget to register for WISPCON IV http://www.wispcon.info/us/wispcon-iv/wispcon-iv.htm The PART-15.ORG smartBridges Discussion List To Join: mailto:[EMAIL PROTECTED] (in the body type subscribe smartBridges <yournickname> To Remove: mailto:[EMAIL PROTECTED] (in the body type unsubscribe smartBridges) Archives: http://archives.part-15.org
