Hello. We have found that if a cpe is "over powered" then the other users will suffer less throughput - try turning the power down, if you can, so that the rssi isn't proportionately a lot stronger than your other users. The rts is only effective over a small band of signal difference, say about 4 - 5db.
Regards David ----- Original Message ----- From: "Del Thompson" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, October 21, 2003 1:04 PM Subject: FW: [smartBridges] one user affecting traffic > Scott, > The lowest link qual that the APPO sees for the clients is about 60%, most > of the link qualities shown on the APPO are 75 - 90%. Looking at the > statistics tabs on the APPO, shows 360 failed packets, 16 aged packets, and > zero retries, on the wireless side. It shows no errors on the Ethernet side > of the APPO and 16,000 singledefered packets. It has been about 10 days > since the counters were reset on the APPO. > > We have all of the ABT radios set for auto fallback on the rate setting and > the APPO set for auto fallback also with all of the rates selected (11, 5.5, > 2, & 1 Mbps). > > I'm not certain what you mean about the rate negotiation in the last > sentence of your reply. > Kind regards, > Del > > -----Original Message----- > From: shoffman [mailto:[EMAIL PROTECTED] > Sent: Monday, October 20, 2003 2:50 PM > To: [EMAIL PROTECTED]; Del Thompson > Subject: Re: [smartBridges] one user affecting traffic > > > Del, > > I have noticed this problem (and I run a Cisco AP). It isn't a problem > but ht e nature of the beast (maybe). What link quality does your APPO > see for the ABTs? What we have noticed is that the ABT's see the towers > much better than the Towers see the ABT's. And in actuality, we > actually see large re-try counts (no, lowering frag has not helped) and > we also believe that the radio's are actually talking at 1 MBps up, and > therefore usable bandwidth is much smaller (600kbps?.. ) and with the > retries, one customer allowed at 256 can eat-up all that 600 kbps pretty > fast... > > Btw.. Save me some reading time.. in the rate negotiation, do the systems > negotiate well both ways (i.e. Client to AP is as controlling in rate > setting as AP to client?) > > Scott > > -----Original Message----- > From: Del Thompson <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] > Date: Mon, 20 Oct 2003 13:36:23 -0500 > Subject: [smartBridges] one user affecting traffic > > > Hello all, > > I have the following setup: > > ISP >> router >> backhaul >> router >> Mikrotic (bandwidth control > > unit) >> > > APPO >> ABT > > > > This particular APPO has 30 customers all using the ABT's. > > > > All customers are bandwidth limited at the tower site by the MiKrotic, > > most > > customers are 256Kbps down, 128Kbps up. The maximum bandwidth > > purchased on > > this APPO is 512kbps/512Kbps. > > > > The problem I've noticed is if a particular customer is doing a > > download > > that lasts several minutes, every other user on that access point sees > > a > > severe degradation in service. The other customers on that AP see > > download > > speeds drop to about 128Kbps and uploads drop to about 64Kbps. In > > other > > words, they see a decrease to about 1/2 of what they should have. > > > > We tried setting the RTS threshold on the ABT's to 500 and this had no > > noticable effect. (APPO RTS & Fragmentation left as default setting) > > Then we lowered the RTS threshold to 256 on all of the ABT's, again, > > this > > had no noticable effect. > > We have not set the fragmentation threshold on any of our radios. > > > > We started noticing this phenomena when the number of associated radios > > on > > the APPO reached 20. > > > > My question is, has anyone else seen this behavior and is there a fix? > > > > APPO firmware is 1.4j.8, ABT firmware is 0.01.07 > > > > Thank you in advance for any feedback. > > Del > > > > > > > > > > ----------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
