Using high RTS/CTS is faster IF the clients can hear each other. When you have lots of hidden nodes, a high RTS/CTS leads to lots of collisions and thus lots of retries and thus one frame turns into lots of thruput wasting retry-frames. All those retries make lots of latencies.
A low RTS/CTS means more overhead for the average client since a client might have to wait its turn to xmit, but when it does get to, it is much more likely to get the data thru on the first try. This gives lower top speed, but more consistant thruput and lower latency in busy airspace. What I don't get is why the aPPO is supposed to top out at 30 associations... is it a lack of CPU power? Ineffecient firmware? How is it that other APs claim more clients using the same 802.11b standard and the same on-air signaling rate? Dave -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Blazen Wireless Sent: Saturday, November 15, 2003 9:20 AM To: [EMAIL PROTECTED] Subject: Re: [smartBridges] Why not to use smartBridge... Dave I just tried these settings and it seemed to make a HUGE difference so far, I have one user online this morning pulling about 800Kbps and tried pinging other clients and radios and latency is a lot lower. I always thought polling was worse for wireless and affected latency more in a bad way? ----- Original Message ----- From: "Dave Covert" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, November 15, 2003 6:31 AM Subject: RE: [smartBridges] Why not to use smartBridge... I agree with you on this one... we offer 512/1meg services to SOHO and resi... area is a patchwork of DSL/cable/dialup... We are doing OK for now, but I know that slow downs are looming in our future. We know from testing that most all of our clients (sB and non-sB) are signaling to the tower (all sB) at 11mbps and are getting a thruput to our NOC somewhere around 3.5 mbps. We use a frag of 1024 and a RTS/CTS of 256, almost turning 11b into a polling system. I have a tendency then to look at each 2.4 channel as a single 3.5 meg pipe. I know it takes a fair number of clients to fill up such a pipe. Thing is, I have heard that each aPPO only handles 30-50 clients. Is that due to some lack of processor/firmware power? Is there an AP that could handle more clients on the same 3.5 meg 'air pipe'? Dave -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Geo_p15sb Sent: Friday, November 14, 2003 11:59 PM To: [EMAIL PROTECTED] Subject: Re: [smartBridges] Why not to use smartBridge... I've been saying all along on these lists that you HAVE to give the customers speed. WISP's that do the tiered systems of 256, 384. 512 are only asking for an ass whipping when cable turns on. Their used to be a wisp on these lists, Paul something or other, he was doing the 128 256 384 wireless deals. then came cable broadband. The guy was deinstalling towers, Got his butt kicked. If he had opened up his network to truely high speed, he wouldn't have lost his pops. Sooo. As you can see DSL is not the competition you should keep your eyes on. it's the cable Co's. Fortunatly there is solutions out there that will let you compete with the cableops. Right now Lonnie at Star-Os.com is working on Atheros support for his Star-Os boxes. the atheros has A B and G. Both A and G allow you to reach speeds of up to 108 megs. He is developing wrap boards with atheros cards. The wraps are about 125 each plus the cards etc. Any wisp who is looking at competing against the cableops in the future ought to be figuring out how to integrate speed into their system today. Just my thought. And seeing this is a SB list... Today I needed to install a temp link, so I used an airpoint and airbridge to do it.... temporarily.. George Gary Garrett wrote: > 3MB internet for $99 is about like the AOL 1,000 hours free in the first > month. There is not 1,000 hours in a month and most users will run out > of data before they ever hit 3 MB sustained. Marketing types know > people tend to go for the high numbers and probably will never use it. > > Rick Kosick wrote: > >> Hi Colin. >> >> The problem is basically that I only service one office park of >> about 100 businesses. >> I only have 12 customers there now (on wireless, anyway). I admit >> I got a little lazy and didn't market there like I should have. >> Recently Comcast came in and wired the complex. Now I am cutting my >> prices to $75.00/month for small office and $125.00 for large office >> and NOBODY is replying. >> >> These people can't get DSL, and can't evem get cable yet but >> Comcast surveyed the area and got them interested. So, I'm cheaper and >> better (not faster) and they still go with them. >> >> I also pondered doing a 10Mbps link for the same pricing as >> Comcast and when I spoke to people about it, they just want Comcast. >> >> I pictched an office complex of 120 offices DYING for Internet >> Access. No DSL, no Cable. >> Comcast caught wind that this problem existed and tried to run >> lines. The association told them they wanted 10k in escrow to make >> sure no damage was done. Comcast said no. >> >> So, the customers sat for 18 months with nothing. No hope of >> Comcast, and no DSL options. >> I went it... do digging, installed within 2 weeks, $99.00/month. >> >> Comcast caught wind of this... came back and offered the complex >> $5000k escrow. They took it. I signed up 3 customers and 1 of them >> told them that they would likely only use me until they got their >> cable installed. The rest never responded. $95/month, 3.5Mbps. Do >> the math. And, they could double this at any time (speed, not price). >> >> Comcast is doubling their residential speeds from 1.5 to 3Mbps on >> Dec 1. >> Compete with that. >> >> They're smart. They know 3Mbps is impossible to get in any other >> economical format. DSL is not gonna do that (under realistic >> conditions) and T1 isn't either. Diabolical! >> >> I used to have about 100 customers on wireless but I opt'd to swap >> out all the radio equipment for burried Cat5(it is a complex). Almost >> all of them were concerned that "when it rains or the wind is blowing, >> doesn't it go out?". This is directly related to Comcast's commercials >> regarding the dish. :-( >> >> I don't even tell people its wireless. I call it wDSL, or Wireless >> DSL if they ask. >> >> === >> Rick Kosick >> StarLinX Internet Service >> >> ----- Original Message ----- >> From: Colin Watson <mailto:[EMAIL PROTECTED]> >> To: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> >> Sent: Friday, November 14, 2003 12:39 PM >> Subject: Re: [smartBridges] Why not to use smartBridge... >> >> How badly are u suffering? Why can't you compete? >> >> ----- Original Message ----- >> From: Rick Kosick <mailto:[EMAIL PROTECTED]> >> To: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> >> Sent: Friday, November 14, 2003 4:26 PM >> Subject: Re: [smartBridges] Why not to use smartBridge... >> >> Nope, wasn't me who called. I started out with Breezecom about >> 3 years ago and remained pretty small. I'm taking it in the >> backside now with Comcast here giving it all away for free. >> Scumbags. >> Wouldn't it be so nice to have that monopoly? Run >> wires to >> every home and then call it a private network so nobody else >> has access to the wire. Funny, 230' of their cable runs across >> my lawn and I don't see any rent money for that "private >> network". What a waste the FCC is. >> === >> Rick Kosick >> StarLinX Internet Service >> >> ----- Original Message ----- >> From: Sevak Avakians <mailto:[EMAIL PROTECTED]> >> To: [EMAIL PROTECTED] >> <mailto:[EMAIL PROTECTED]> >> Sent: Friday, November 14, 2003 11:10 AM >> Subject: Re: [smartBridges] Why not to use smartBridge... >> >> Hi Rick, >> >> I'm in NYC. Yeah, both our areas (NY & PA) were hit bad >> yesterday! >> >> PA? There was a guy in PA that wanted to setup a WISP and >> had called me for tips awhile back...that wasn't you, >> right? If I remember correctly, his name was also Rick. >> >> Sevak >> >> On Fri, 2003-11-14 at 11:02, Rick Kosick wrote: >> >>> >>> No luck. I downgraded to lower firmware and nothing. >>> I am going to try and reset it by using the button on >>> PowerShot and trying from scratch. Otherwise, I have to >>> dump the equipment and move to something else. Way too >>> much time spent on this what-should-be-simple setup. It >>> did work for about 5 mins until I tried enabling WEP. >>> Ever since though, nothing. >>> Where are you located that you have 55MPH >>> wind? I'm in PA >>> and have the same problem. Trees down everywhere :-( >>> Where can I get 1.4j.9? Maybe that will do it? >>> === >>> Rick Kosick >>> StarLinX Internet Service >>> >>> ----- Original Message ----- >>> From: Sevak Avakians >>> <mailto:[EMAIL PROTECTED]> >>> To: [EMAIL PROTECTED] >>> <mailto:[EMAIL PROTECTED]> >>> Sent: Friday, November 14, 2003 10:47 AM >>> Subject: Re: [smartBridges] Why not to use >>> smartBridge... >>> >>> Hi Rick, >>> >>> Turns out that I'm also having problems getting 2 >>> aPPOT units to bridge. At first, I was having >>> trouble with one of the appot to broadcast it's >>> ssid. The other appot did not take up the ssid >>> changes I made to it. Whenever sniffing wirelessly, >>> its ssid appeared as airPointProOutdoorTOTAL. After >>> re-flashing the rom, rebooting, and switching from >>> wireless bridge mode to client bridge mode then back >>> to wireless bridge mode, the ssid appears properly on >>> the second unit. (Note, that the ssid as seen from >>> the monitor program would always appear as the >>> correct one. It was only from looking at the >>> wireless broadcast that I could see that the ssid was >>> incorrect.) >>> >>> Well, anyway it is way too windy here today for me to >>> continue (55 mph winds!), so I'll take another look >>> at it tomorrow. >>> >>> Any luck with your setup??? >>> >>> Sevak >>> >>> On Thu, 2003-11-13 at 09:19, Rick Kosick wrote: >>> >>>> >>>> Software: 1.6 >>>> Firmware: 1.4j.8 >>>> Both sides. >>>> === >>>> Rick Kosick >>>> StarLinX Internet Service >>>> >>>> ----- Original Message ----- >>>> From: Sevak Avakians >>>> <mailto:[EMAIL PROTECTED]> >>>> To: [EMAIL PROTECTED] >>>> <mailto:[EMAIL PROTECTED]> >>>> Sent: Thursday, November 13, 2003 9:11 AM >>>> Subject: Re: [smartBridges] Why not to use >>>> smartBridge... >>>> >>>> Rick, if you got the firmware off the website, >>>> it may not be the latest. Usually sb has a beta >>>> version that they post on this list and most of >>>> us use before it is posted to the website. >>>> >>>> Check the version number using simpleNMS or the >>>> firmware upgrade utility. >>>> >>>> Sevak >>>> >>>> On Thu, 2003-11-13 at 09:05, Rick Kosick wrote: >>>> >>>>> >>>>> I don't know the actual version number but I >>>>> just downloaded it off the website in the past >>>>> few days and it is the very latest on both sides. >>>>> This part about it >>>>> bringing the switch to its >>>>> knees is VERY disturbing because a switch, by >>>>> its design, should not allow that to happen >>>>> normally. I can see it happening to a hub. >>>>> I was working on this >>>>> remotely (from home) at >>>>> late hours both times and had to drive to the >>>>> NOC to remedy it because I couldn't access any >>>>> machines via PC Anywhere. The whole network >>>>> crashed basically. >>>>> === >>>>> Rick Kosick >>>>> StarLinX Internet Service >>>>> >>>>> ----- Original Message ----- >>>>> From: Blazen Wireless >>>>> <mailto:[EMAIL PROTECTED]> >>>>> To: [EMAIL PROTECTED] >>>>> <mailto:[EMAIL PROTECTED]> >>>>> Sent: Thursday, November 13, 2003 8:59 AM >>>>> Subject: Re: [smartBridges] Why not to use >>>>> smartBridge... >>>>> >>>>> Interesting what firmware were you using >>>>> which should not affect your switch like >>>>> that just curious to know.. >>>>> >>>>> ----- Original Message ----- >>>>> From: Rick Kosick >>>>> <mailto:[EMAIL PROTECTED]> >>>>> To: [EMAIL PROTECTED] >>>>> <mailto:[EMAIL PROTECTED]> >>>>> Sent: Thursday, November 13, 2003 5:39 AM >>>>> Subject: [smartBridges] Why not to use >>>>> smartBridge... >>>>> >>>>> So far I've come up with three good >>>>> reasons to not continue to use >>>>> smartBridges but I'm open to >>>>> suggestions for fixing these problem. >>>>> Pardon my frustration but I have 3 >>>>> years of wireless experience and its >>>>> taking me more than 10 hours of >>>>> fiddling to get a simple Wireless >>>>> Bridge to Wireless Bridge up and >>>>> running and I am sitting here with more >>>>> problems than solutions right now. >>>>> 1) Last >>>>> week I plugged the ethernet >>>>> side of an APPO into an APCC PNET4 >>>>> ethernet surge supressor where there >>>>> where three other devices plugged in. >>>>> This caused severe packet loss on the >>>>> other devices. Pinging the other >>>>> devices between each other would result >>>>> in 4 out of 10 pings timeing out. >>>>> >>>>> SOLUTION: Bypass the ethernet surge >>>>> supressor. >>>>> 2) Right >>>>> now I have two APPO's >>>>> configured in Wireless Bridge mode >>>>> (which won't work, see #3). At my NOC >>>>> side its plugged into a D-Link DES3226 >>>>> Managed Switch. If I put the APPO into >>>>> Access Point mode, it KILLS the traffic >>>>> on my switch entirely to the point >>>>> where workstations and servers can >>>>> barely reach each other. As soon as I >>>>> unplug the APPO's ethernet connection >>>>> from the switch, immediately everything >>>>> goes back to normal. This has happened >>>>> twice now in my quest to get my >>>>> wireless link working. >>>>> >>>>> SOLUTION: No idea. Maybe avoid >>>>> Access Point mode? >>>>> 3) I have >>>>> to admit I did enjoy 3 >>>>> minutes of Wireless Bridge mode where >>>>> everything worked as it was expected, >>>>> but I got adventerous and enabled WEP. >>>>> This did not work out for some reason >>>>> and now, after disabling WEP... I >>>>> cannot get the Wireless Bridge mode to >>>>> work again. I've reset to Defaults and >>>>> started over, still nothing. I simply >>>>> cannot get Wirless Bridge to Wireless >>>>> Bridge mode to work at this point. I've >>>>> been through the "recycling both >>>>> sides", "double checking MAC#'s", etc. >>>>> You'd think that if this was going to >>>>> work at all, I would have accidentally >>>>> made it work by now. >>>>> >>>>> SOLUTION: None as of yet. >>>>> >>>>> Clearly, >>>>> when considering points #1 and >>>>> #2 above, there is more happening on >>>>> the ethernet side of the link than just >>>>> ethernet. Something is different than a >>>>> standard ethernet connection because >>>>> this radio clearly caused major packet >>>>> loss between the other devices plugged >>>>> into am ethernet surge supressor. Maybe >>>>> power is leaking through from the >>>>> PowerShot device? And, its ability to >>>>> completely bring a managed switch to >>>>> its knees just reassures this.. >>>>> === >>>>> Rick Kosick >>>>> StarLinX Internet Service > > > 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 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 --- [This E-mail scanned for viruses by Declude Virus] --- [This E-mail scanned for viruses by Declude Virus] 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 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 --- [This E-mail scanned for viruses by Declude Virus] --- [This E-mail scanned for viruses by Declude Virus] 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
