To answer these questions. These are Linksys WAP11's using the D-Link 2.5 firmware.
There are no other wireless connections, the WAP's are in bridge mode and only communicate with each other. Ping test over 500ish tries show 3ms minimun, 14ms max, 4ms average. None dropped. Logs only show connected, nothing else. The status section does have one interesting point though. Both sides show lots of ethernet packets, all good, none dropped. However the wireless packets at Site 1 show: Send - Good 1302 Send - Dropped 1297 Recv - Good 6514 Recv - Dropped 0 Site 2 shows: Send - Good 326393 Send - Dropped 326393 Recv - Good 1303845 Recv - Dropped 0 So both sides think they have dropped about half of their sent packets, which seems to be what David Young thought. However his suggestion to lower the retry count was not possible as the HTML management system did not seem to allow user configuration of that setting. Is there perhaps an SNMP management tool for the DWL-900AP+ that I'm just not finding. Anyway, all the advanced settings look like this: Beacon Interval: 100(default) RTS Threshhold: 2432(default) Fragmentation: 2346(default) DTIM Interval: 3(default) Basic Rates: 1-2Mbps TX Rates: 1-2Mbps (I changed these hoping there was just a problem negotiating the higher speeds. I've tried all settings and get same result) Preamble Type: Long Preamble(default) Authentication: Auto(default) SSID Broadcast: Disabled(I changed from default of enabled) Antenna transmit power: 100% 19dBm(default) Antenna Selection: Left Antenna (I changed from default of diversity, I'm only using one antenna). Again, thanks everyone that has commented on this. I mentioned the Karlnet devices and the idea was met with some skepticism. I don't think my superintendent is too enthused about spending another $1200 on this project. Thanks, Brian Taylor ----- Original Message ----- From: "Jon King" <[EMAIL PROTECTED]> To: "Brian Taylor" <[EMAIL PROTECTED]>; < > Sent: Wednesday, June 04, 2003 10:35 AM Subject: Re: [BAWUG] WAP11 Bridge too slow > I am gonna guess your issue is timing. > that is the same as davids suggestion? > karlnet software is supposed to fix this problem... > how do you bring this setting down? > this is the rtc setting? > or is this in the nics on the PC's at both ends? > I'm interested to know: are there any other wireless clients connecting to > either side of this link? > what happens if you run a continuous ping test back and forth from one side > to the other? > how do the times look? > do the logs on either side show anything? > also: which firmware version are you running on your DWL900ap+? > I've had troubles w/ everything except the january release (2.5). > have you tried pulling down the speed to 1 or 2 megs only on both sides? > please disclose everything you have going on: > > RTS/CTS settings > log findings > firmware version > other clients? > speed settings. > ping test results > how does the link perform? does it start treansferring fine and slow down > or is it slow to start transferring and doesn't improve from there? > since you're on a budget, I would find a USB or internal wireless card you > can connect to one of the antenna's and try and get a little bit of a closer > look at how things are working. > > Good luck. > > > > > > ----- Original Message ----- > From: "Brian Taylor" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Wednesday, June 04, 2003 7:49 AM > Subject: Re: [BAWUG] WAP11 Bridge too slow > > > > Thanks for some excellent ideas guys. > > > > I will make sure to check the transmission retry count today as David > Young > > suggested. > > > > As Chris Beaumont had suggested we had considered trying to get rid of the > > (2) 20ft. coax runs. One method was to move the WAP11's into a sealed > > enclosure and then use D-Link DWL-P100's(good cheap PoE units) to power > it. > > The other option was to use the other bridge units I mentioned in the > > original article. They were designed for outdoor use so would require > > minimal shielding. According to calculators I ran though, just > eliminating > > the cables wouldn't gain me that much signal. > > > > Charles Chia Seng Wu suggested Karlnet or Star-OS, and we looked into > > Karlnet in the beginning and found it cost prohibitive. We are a very > small > > school district and the budget was tight. The project was just to get > some > > better internet speed to a school in a small town where the option is > either > > dial-up or T1, and the T1 costs $2,300/month. > > > > Jason Straight commented on height, so I will clarify that. On one end > the > > WAP sits in attic area of a home sized building, and the cable runs up a > > mast right next to the building. Overall height on that end is 35 foot. > On > > the other end the WAP sits in the attic area of a 24 foot building and > then > > the cable runs through the roof and up a tripod that is mounted at the > peak > > of the building. Overall height on this end is 40 foot. At the beginning > > of the project we had a local GIS person gather some topographical maps > and > > we discerned that there is a small "valley" between the sites(luckily) and > > that there is a steady 80 foot drop from site 1 to site 2. We came up > with > > about the same Fresnel of 43ish feet, but according to our numbers the > only > > problem is at site one where we only have 35 foot. > > > > Again, thank you for the excellent suggestions. > > > > Brian Taylor > > Technology Coordinator > > Waconda USD #272 - Cawker City, KS > > > > > > ----- Original Message ----- > > From: "Jason Straight" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Tuesday, June 03, 2003 10:45 PM > > Subject: Re: [BAWUG] WAP11 Bridge too slow > > > > > > > On Tuesday 03 June 2003 11:16 pm, Chris Beaumont wrote: > > > > Brian, > > > > > > > > Its a long shot, but I was thinking that perhaps if you could put the > > > > APs up higher, right next to the antennas, in a waterproof case..and > > > > eliminate the 20 feet of coax, that might help. You could use power > > > > over ethernet.. the Wap 11s I think support that..if not, its not too > > > > hard to add.. Or just run an extension cord up to each of your APs. > > > > > > > > Another option if that doesnt work might be to get a second pair of > > > > antennas and use them as diversity antennas, maybe using the opposite > > > > polarity.. By the way, you are using horiz. polarity, aren't you? Its > > > > better in the situation you are in, Ive heard.. > > > > > > > > Good luck!!! > > > > > > > > -Chris > > > > > > Well if he's only got 20' of antenna height that would be the problem > > anyway. > > > At 10 mi the fresnel zone will be 43 feet. > > > > > > -- > > > Jason Straight > > > [EMAIL PROTECTED] > > > icq: 1796276 > > > pgp: http://www.JeetKuneDoMaster.net/~jason/pubkey.asc > > > > > > -- > > > general wireless list, a bawug thing <http://www.bawug.org/> > > > [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless > > > > > > > -- > > general wireless list, a bawug thing <http://www.bawug.org/> > > [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless > > -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
