> Well your problem reminded me of wds + nstreme problem is why I > brought it up. I believe wireless-test will fix this.
How can WDS and NStreme be used togeather? I thought it had to be one or the other? > Any way you could test the links disconnected from the rest of the > network and see if stressing the links drops it? Will do that if necessary, after firmware update. > Are the links losing wireless association? Yes, they do when it reaches Zero mbps, then immediately restablishes association. Tom DeReggi RapidDSL & Wireless, Inc IntAirNet- Fixed Wireless Broadband ----- Original Message ----- From: "Josh Luthman" <[email protected]> To: "WISPA General List" <[email protected]> Sent: Wednesday, September 16, 2009 9:43 PM Subject: Re: [WISPA] Mikrotik Problem - 900Mhz-WDS-incremental speed degradetp Zero then drop- repeat. > Well your problem reminded me of wds + nstreme problem is why I > brought it up. I believe wireless-test will fix this. > > Any way you could test the links disconnected from the rest of the > network and see if stressing the links drops it? > > Are the links losing wireless association? > > On 9/16/09, Tom DeReggi <[email protected]> wrote: >> No I am not using nstreme now. >> >> However, to expand on the conversations....and history of the job.... I >> am >> using WDS because that is the standard configuration that has always >> worked >> for us. We have a central routing platform at the nearest regional tower >> and >> bandwdith manage via VLAN, so we wanted all our leg radios to be true >> bridges, for easy consistent management of IP space. Many of our MT >> isntalls >> are configured for VLAN. When we originally selected WDS for our standard >> config, taht was like 3 years ago, with the earlier MT 2.X versions, and >> some of teh alternate methods did not properly work as stated in manual. >> For >> example, back then Station WDS didn't work right. Now a couple years >> later, >> and up to many version of 3.X, we want to re-investigate what is best >> practices. >> >> In this particular case, Subscriber A had to be a true bridge for various >> reasons so used WDS. But SubscriberB was an end user residential client, >> connected with a Linksys router, and could have worked fine as a standard >> wifi client. What we tried to do first was setup a Virtual AP. Leave >> Custoemr A on WDS, and then setup CustomerB as a standard wifi station on >> the Virtual AP standard AP. But we couldn't get the Virtual AP to pass >> traffic. We weren't sure if it was a config mistake or a incompatible >> configuration, doing both WDS and Virtual AP on the same WLAN. So that is >> why we reconfigured everything back to all WDS. >> >> We are looking for alternate configuration options, if better. In this >> particular case, we were very concerned about hidden node type issues, >> and >> concerned using regular WDS for both clients could cause significant >> Hideen >> Node type colissions or self interference. SubA was like 5 miles away, >> and >> pushes much larger amount of traffic, SubB was like 1 mile away, and low >> use >> residential. We were concerned Residential SubB could get performance >> issues >> because of SubA's traffic use. We were debating whether NStreme w/ >> polling >> would have been the best configuration for the solution. Does NStreme >> polling allow full bridging like WDS? >> >> Do you have any recommendations on best practice config now for MT PTMP, >> (without routing)? >> >> Tom DeReggi >> RapidDSL & Wireless, Inc >> IntAirNet- Fixed Wireless Broadband >> >> >> ----- Original Message ----- >> From: "Josh Luthman" <[email protected]> >> To: "WISPA General List" <[email protected]> >> Sent: Wednesday, September 16, 2009 12:42 PM >> Subject: Re: [WISPA] Mikrotik Problem - 900Mhz-WDS-incremental speed >> degradetp Zero then drop- repeat. >> >> >>> You're not using nstreme are you? >>> >>> Josh Luthman >>> Office: 937-552-2340 >>> Direct: 937-552-2343 >>> 1100 Wayne St >>> Suite 1337 >>> Troy, OH 45373 >>> >>> "When you have eliminated the impossible, that which remains, however >>> improbable, must be the truth." >>> --- Sir Arthur Conan Doyle >>> >>> >>> On Tue, Sep 15, 2009 at 8:25 PM, Tom DeReggi >>> <[email protected]>wrote: >>> >>>> I have a problem with Mikrotik I have not been able to solve. Wondering >>>> if >>>> anyone has any insight. >>>> >>>> A summary config is.... >>>> >>>> I have a 433AH setup as AP with 1 XR900 and 1 R5H (5.8Ghz). The Cat5 >>>> Ethernet port goes to a SMC VLAN switch, where the SMC tags and untags >>>> VLAN >>>> ID, and continues to the Backhaul Radio. My point here is the MT itself >>>> does >>>> not have any VLAN configured. >>>> >>>> I need everything to act as a True Bridge, so I'm using WDS on >>>> everything. >>>> Both mPCI cards are set up as "AP" and then WDS interfaces configured. >>>> The R5H sector has one subscriber, so there is one WDS interface >>>> created >>>> for >>>> that. The XR900 has two subscriber points. So there are two WDS >>>> interfaces >>>> set up for the XR900 sector, one for each subscriber. So all three WDS >>>> interaces and the Ethernet (to backhaul) are all bridged togeather >>>> under >>>> one >>>> Bridge. >>>> >>>> SubscriberA has a 433AH also, and actually is a repeater site. So it >>>> has >>>> two >>>> mPCI each configured for WDS, and then the WDS ports bridged togeather. >>>> The >>>> primary mPCI that connects to the above first AP, is set for WDS Slave. >>>> This subscriberA (repeater radio) works normally. I can run MT >>>> bandwdith >>>> test continually at consistent speed. >>>> >>>> As well, the subscriber for the R5H sector above also is set up for WDS >>>> Salve, and works properly, and tests consistently with Bandwdith test. >>>> >>>> SubscriberB for 900Mhz sector is the problem. It is a RB411 w/ a 24V-1A >>>> PS, >>>> w/ XR900. Originally it was set for WDS Slave also. It is now set for >>>> WDS >>>> Station, and performs the same as if WDS Slave. When running MT >>>> Bandwdith >>>> test both UDP or TCP, Sitting at the 433AH AP's winbox, I get the >>>> following >>>> results.... TXing it works perfectly and consistently. >>>> But if doing a receive test.... It starts out at about 800 kbps, then >>>> slowly >>>> reduces speed incrementally, down to 500 kbps, to 300kbps, to 100kbps, >>>> etc, >>>> down to Zero. When it reaches Zero mbps, the radio link disconnects, >>>> and >>>> immediately restarts itself. Speed starts back up at 800 kbps or so, >>>> and >>>> the >>>> same thing repeats. If doing Bi-directional tests of course the same >>>> thing >>>> applies, because it receives also. >>>> >>>> Noise is low at teh SU, about -67, and -74 at AP. At first I thought >>>> it >>>> was >>>> noise at the IP, because occastionally SNR gets very low. .But.... >>>> SubscriberA has a lower signal at -84 and does not experience the same >>>> problem. Just for grins, I tried playing around with TRansmit power at >>>> the >>>> SubscriberB, but that had no positive effect. As well, as a test, I >>>> disabled the second WDS interface to SubscriberA, and no change. >>>> >>>> To be clear... SubscriberA and SubscriberB each have their own WDS >>>> interface >>>> configured on WLAN1 of the 433AH AP. >>>> I am using embedded MTOS V 3.10 on each. >>>> >>>> What is causing this problem? Why is speed received from my >>>> SubscriberB >>>> incrementally degrading and breaking link? >>>> >>>> Bridge loops? Is my config valid? RB411 Bug? >>>> >>>> Tom DeReggi >>>> RapidDSL & Wireless, Inc >>>> IntAirNet- Fixed Wireless Broadband >>>> >>>> >>>> >>>> >>>> >>>> -------------------------------------------------------------------------------- >>>> WISPA Wants You! Join today! >>>> http://signup.wispa.org/ >>>> >>>> -------------------------------------------------------------------------------- >>>> >>>> WISPA Wireless List: [email protected] >>>> >>>> Subscribe/Unsubscribe: >>>> http://lists.wispa.org/mailman/listinfo/wireless >>>> >>>> Archives: http://lists.wispa.org/pipermail/wireless/ >>>> >>> >>> >>> -------------------------------------------------------------------------------- >>> WISPA Wants You! Join today! >>> http://signup.wispa.org/ >>> -------------------------------------------------------------------------------- >>> >>> WISPA Wireless List: [email protected] >>> >>> Subscribe/Unsubscribe: >>> http://lists.wispa.org/mailman/listinfo/wireless >>> >>> Archives: http://lists.wispa.org/pipermail/wireless/ >> >> >> >> -------------------------------------------------------------------------------- >> WISPA Wants You! Join today! >> http://signup.wispa.org/ >> -------------------------------------------------------------------------------- >> >> WISPA Wireless List: [email protected] >> >> Subscribe/Unsubscribe: >> http://lists.wispa.org/mailman/listinfo/wireless >> >> Archives: http://lists.wispa.org/pipermail/wireless/ >> > > > -- > Josh Luthman > Office: 937-552-2340 > Direct: 937-552-2343 > 1100 Wayne St > Suite 1337 > Troy, OH 45373 > > "When you have eliminated the impossible, that which remains, however > improbable, must be the truth." > --- Sir Arthur Conan Doyle > > > -------------------------------------------------------------------------------- > WISPA Wants You! 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