Community discussions

MikroTik App

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by marksx
Fri Jun 19, 2009 10:25 am
Forum: Wireless Networking
Topic: Dual polarization antennas or two antennas in one unit
Replies: 75
Views: 45252

Re: Dual polarization antennas or two antennas in one unit

From my experience minimum 40dB of separation is needed to ensure quality of dual link Some antennas doesn't have such separation, so they're not suited for this type of work. If separation is low (eg 39-41dB) you need to lower your TX power on TX interface, because crucial is signal on RX interface...
by marksx
Fri Jun 19, 2009 3:12 am
Forum: Wireless Networking
Topic: Dual polarization antennas or two antennas in one unit
Replies: 75
Views: 45252

Re: Dual polarization antennas or two antennas in one unit

The Mars I'm using are SMA. Yes, but look at the picture: http://marx.kebab.org.pl/ciekawostki/foto/mars_dp/IMG_0022.JPG the N connectors are about 10cm from each other, the DP25 N has only 2cm space between connectors like this one: http://pliki.interprojekt.pl/wiki/attach/MARS_Antena_panelowa_MAR...
by marksx
Wed Jun 17, 2009 10:09 pm
Forum: Wireless Networking
Topic: Dual polarization antennas or two antennas in one unit
Replies: 75
Views: 45252

Re: Dual polarization antennas or two antennas in one unit

Hi, I experienced big problems with dual-polarity antennas. I setup two links (7 KM and 5 KM) with MARS Antennas MA-WA56-DP25SBRF -> http://www.mars-antennas.com/item/g_antennas_type_1-156.html Which version of this antenna do you have ? MARS manufactured TWO versions of this antenna, both are look...
by marksx
Sun May 24, 2009 12:57 pm
Forum: Wireless Networking
Topic: Dual polarization antennas or two antennas in one unit
Replies: 75
Views: 45252

Re: Dual polarization antennas or two antennas in one unit

Are you running RB433's with N-Streme dual
theoretically it's possible to make one, but i'm using boards with faster cpu 433AH/600A or ALIX
by marksx
Sat May 23, 2009 5:39 pm
Forum: Wireless Networking
Topic: Dual polarization antennas or two antennas in one unit
Replies: 75
Views: 45252

Re: Dual polarization antennas or two antennas in one unit

Currently we have 5 dual polarity antennas available: 1. Jirous - parabolic dish - 29dBi/29dBi gain @ 5400-5900 2. Jirous - parabolic dish - 23dBi/23dBi gain @ 5400-5900 3. Mars MA-WA56-DP25 N - flat panel antenna - 25/24dBi gain @ 4950-5850 4. Mars MA-WA56-DP25 - same as above but frequency range i...
by marksx
Thu Jul 05, 2007 2:42 am
Forum: Wireless Networking
Topic: Maximum possible bandwidth for wireless PtP link
Replies: 18
Views: 4468

Re: Maximum possible bandwidth for wireless PtP link

How tall are the buildings? If you had a steel cable and a mount point on each building (like power companies do) could you run that from building to building then run a cat5 cable across that?
In that case i strongly suggest Single Mode fiber - there won't be any problem with lightings
by marksx
Thu Jul 05, 2007 2:29 am
Forum: Wireless Networking
Topic: Maximum possible bandwidth for wireless PtP link
Replies: 18
Views: 4468

Re: Maximum possible bandwidth for wireless PtP link

all you need is to bulid two nstreme dual links then bond them you can look into this topic: http://forum.mikrotik.com/viewtopic.php?f=7&t=8140&p=79877#p79877 for my link calculation, but in this case you don't need 28dBi antennas - 13dBi's should be more than enough BTW. Have you heard about FSO/La...
by marksx
Thu Jul 05, 2007 2:17 am
Forum: Wireless Networking
Topic: 25Km 125Mbps FDX Link
Replies: 24
Views: 10948

Re: 25Km 125Mbps FDX Link

If i need that kind of thorughput i just buy or lease Ericsson Minilink HC but if you need to do this using MT calculate: Maximum Performance is at -55dBm signal point, to archieve -55dBm on 15km, you'll need two 28dBi (real gain) antennas so then 2x Nstreme dual is about 120Mbps real throughput, bu...
by marksx
Wed Jul 04, 2007 4:27 pm
Forum: Wireless Networking
Topic: Maximum possible bandwidth for wireless PtP link
Replies: 18
Views: 4468

Re: Maximum possible bandwidth for wireless PtP link

Nstreme Dual on 50meters should give you upto 75Mbps full duplex throughput.
If you want you can use two nstreme duals bonded should be about 130-140Mbps full duplex
by marksx
Fri Jun 08, 2007 10:38 am
Forum: Wireless Networking
Topic: RB532r5 x2 w/r52 wireless card Backhaul Voice Testing (probl
Replies: 3
Views: 1087

Re: RB532r5 x2 w/r52 wireless card Backhaul Voice Testing (probl

First, thanks for your time if you contribute to answering my questions. This is a very important topic for me because we pass a lot of voice traffic on our network. We have almost all Trango equipment and have been very successful with the handling of voice traffic so far. As our network grows I f...
by marksx
Fri Jun 08, 2007 10:04 am
Forum: Wireless Networking
Topic: Atheros Cards and 5.4-5.7 Frequencies
Replies: 6
Views: 1409

Re: Atheros Cards and 5.4-5.7 Frequencies

1. Setup correct country (i.e Poland for 5.4 - 5.7)
2. Buy custom frequency license or upgrade current to custom frequency and setup frequency mode "superchanel"
by marksx
Thu Jun 07, 2007 10:18 pm
Forum: Wireless Networking
Topic: Supermicro PC and RB532
Replies: 7
Views: 1813

Re: Supermicro PC and RB532

PC's aren't good for multicard setups regarding to their IRQ bottleneck - it's only 32bit PCI. You probably won't find PC which running 5 (or more) cards won't have IRQ conflict. In my setup i have 4 cards, but often telling people when they want to archieve 100% of their wireless setup they should ...
by marksx
Thu Jun 07, 2007 9:40 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

Re: PtP Link 65 km and at least 48 mb/s

With the PC that you propose what is the switching performance in term of pps (packets per second) for the following packet lengths: 64, 250, 550 and 1500 bytes? 50bytes UDP packets -> 100kpps -> ~40Mbps 100bytes and more = atheros maximum throughput ~80Mbps http://marx.kebab.org.pl/testy/nstreme_d...
by marksx
Mon Jun 04, 2007 7:31 pm
Forum: RouterBOARD hardware
Topic: RouterBOARD 44G throughput
Replies: 14
Views: 3920

Re: RouterBOARD 44G throughput

If i want to have high performance product i'll use intel, but sometimes i want good performance for reasonable price...
by marksx
Mon Jun 04, 2007 3:55 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

Re: PtP Link 65 km and at least 48 mb/s

25W is maximum, and this box is rather big, so there shouldn't be any problem regarding temperature.
But -20* is rather cold so you should think about some heater, the best should be one with microprocesor - you can program it when the heater start
by marksx
Tue May 29, 2007 4:04 am
Forum: General
Topic: Recommended NIC
Replies: 8
Views: 1544

Re: Recommended NIC

do as changeip said - use intel. They're the best. i suggest Intel Server Board S3000AHLX (with PCI-X) Intel gigabit quad port NIC PCI-X based Intel Pentium 4 640 (3,2GHz 2Mb cache single core) + Kingstone ECC Memory + Good quality power supply Optional rack 4U enclosure You should be able to passth...
by marksx
Sun May 27, 2007 12:56 am
Forum: RouterBOARD hardware
Topic: RouterBOARD 44G throughput
Replies: 14
Views: 3920

Re: RouterBOARD 44G throughput

Yeah you're right, but i think that 4x GbE PCI based card is more marketing than the hardware. Even if we want to have only one good gigabit port with performance on the edge (Ageregated 300Mbps+ ), using Realtek chipset isn't the right choise i think. I spent much time trying to find good (and chea...
by marksx
Tue May 15, 2007 8:16 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

The DFE-530TX has a via-rhine chipset while the DFE-538TX has a realtek 8139 - which isn't recomended for high performance networks - it's only enduser chip. First change NIC's to Intel 10/100 ones or 1000 ones http://www.intel.com/network/connectivity/products/pro100s_adapter.htm or even these ones...
by marksx
Mon May 14, 2007 9:00 pm
Forum: Wireless Networking
Topic: More than 40Mhz ?
Replies: 6
Views: 1708

I would prefer 256QAM Me too, but the true is, that fully fledged QAM64 should be enough - from 802.11 non turbo chanell we could get even 100Mbps (even with the addional header/encoding loss should give 70Mbps... http://www.marx.kebab.org.pl/ciekawostki/spectral_efficiency_table.PNG or PCI-E. A I ...
by marksx
Mon May 14, 2007 7:40 am
Forum: Wireless Networking
Topic: More than 40Mhz ?
Replies: 6
Views: 1708

...Was a bit curious. Does anyone know of a mini-pci card that offers more than the 40Mhz bandwidth option? I doubt they exist, ...but dont hurt to ask. Yes, they are! The're called "UWB" ultra wide band But currently they're too expensive (and have poor availability) for normal usage and MT doesn'...
by marksx
Mon May 14, 2007 7:31 am
Forum: Wireless Networking
Topic: Channel Spacing
Replies: 1
Views: 830

Spacing - yes (like 2414 and 2412) , but chanel width - not (only 5/10/20/40MHz)
by marksx
Mon May 14, 2007 7:27 am
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

i, i have a pentium 3 450 mhz with direct ac supply. And i want to know : 1. ubiquiti xr5 600 mw or ubiqui sr5 400 mw work with minipci adtapter on pci standard. depends on motherboard... 2. what wireless card do you use in you pentium 3? This one: http://www.cyberbajt.com/cyber.php?get=produkt,138...
by marksx
Sun May 06, 2007 12:42 am
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

Have you tried Celeron CPU? Is their performance on par with the P3? This depend on aplication, but 600MHz celeron mobile (without any cache) compared to 600MHz old pentium3 (with 256KB cache) should be little slower. What do you think of this board: http://www.commell.com.tw/product/SBC/LE-370Z.HT...
by marksx
Fri May 04, 2007 6:38 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

Pentium3 is suitable to work _without_ fan if you won't threat procesor with 100% load, 1GHz has only ~25W! TDP, if somebody want we can always put 677MHz one (which is TDP 15W rated) plus something like this for cooling: http://i.frazpc.pl/pliki/2002/artykuly/art298/QVC-120/Pentagram%20-%2001.jpg h...
by marksx
Fri May 04, 2007 7:57 am
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

I'm putting raw( which means without any comment - just screens) test data here, so if you're interested in some of test resulsts i got, you can browse here: http://www.marx.kebab.org.pl/testy/ as you can see nstreme dual wasn't so bad in one direction uwing TCP: http://www.marx.kebab.org.pl/testy/n...
by marksx
Mon Apr 16, 2007 8:41 pm
Forum: Wireless Networking
Topic: Coax/Heliax recommendations
Replies: 9
Views: 2301

So you'll need to do this right once ;-)
I have six 100-200m towers working and if setup is made correctly there's no need to change anything.
by marksx
Sat Apr 14, 2007 6:22 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

we have AC/DC power supply too http://www.cyberbajt.com/cyber.php?get=produkt,1741 so all you need is to mount a box (can be plastic) on the bottom of the tower with this AC/DC power supply, place wire from bottom to top and connect PC through DC/DC converter to this wire. I strongly suggest to use ...
by marksx
Sat Apr 14, 2007 1:35 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

http://www.cyberbajt.com/cyber.php?get=produkt,1745 it's very good converter, because of very big variety of DC input voltages (from 18 to 28V) and stable work even close to maximum 120W In this case you can put 24V DC instead of 110/230AC, but you will need to calculate cable diameter to ensure tha...
by marksx
Fri Apr 13, 2007 2:44 am
Forum: Wireless Networking
Topic: Nstreme Packet size vs Jitter/Latency
Replies: 20
Views: 3542

I have many links working with nstreme around -76dBm @ 24Mbps data rate, where noise is rahter high, ant everything is working fine. The secret is to set up solid data rate, one or two values below normal negotioation speed, and everything is working perfect Of course the mPCI is important too, i'm ...
by marksx
Thu Apr 12, 2007 11:10 pm
Forum: General
Topic: WhoW!
Replies: 6
Views: 2358

very very slow ;-) look at my setup: speed was measured on ethernet port of one PC's - so that's the _real life_ performance http://www.marx.kebab.org.pl/testy/rb532_400MHz_3.0beta/schemat.jpg and finaly: full duplex performance @ TCP: http://www.marx.kebab.org.pl/testy/rb532_400MHz_3.0beta/tcpboth....
by marksx
Thu Apr 12, 2007 10:51 pm
Forum: Wireless Networking
Topic: Nstreme Packet size vs Jitter/Latency
Replies: 20
Views: 3542

I have running about 1500-2000 nstreme links and i think that everything is working fine. I don't think that there's any problem with this. Probably you have bad signal or problem with negiotioation rate. If you're expecting 1ms ping on multipoint solution, try VectaStar 3500 it cost 100 times more ...
by marksx
Sat Mar 31, 2007 10:24 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

in this case problem isn't CPU, it's motherboard itself (and method which atheros uses to comunicate with CPU) Of course this will run, but you won't be able to passthrough trafic on the level as high as mentioned before (south&northbridge will stuck and this won't pass traffic, even with CPU on 30%...
by marksx
Sat Mar 31, 2007 9:07 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

integrated LAN pass the exam with 2x NS2
I haven't found board which will take two duals on their max performance at the same time, so you can use two instead
by marksx
Fri Mar 30, 2007 3:55 am
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

it should work, but better find commell ones with intel CPU, they're more powerfull, and often offers integrated DC-DC coverter.
I'm going to have samples in next few days, so if you want i can post some results on board.
by marksx
Mon Mar 26, 2007 11:22 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

won't the system just power on, then turn off in five seconds?
No, PS-ON + GND trick is method which forecefully puts power to motherboard from power supply, all motherboards i know are working with this.
by marksx
Mon Mar 26, 2007 7:42 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

No, because PC will consume even 2-3A (1,2A idle) of current, so CAT.5 cable is too thin to provide PoE on this distance, you'll need something more thick. On 60m with 24V AC-DC adapter on one site and DC-DC converter (wchich works from 18,5) on the other you should use minimum AWG 12 <3mm^2> wire (...
by marksx
Mon Mar 26, 2007 6:06 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

this motherboard has "always on" bios setting, so as long as there's power motherboard will function. Of course there's another method - connect PS_ON pin to GROUND (Green wire to Black wire), i often make it through 100OHmm Resistor and everything is working fine There should be email to my frient ...
by marksx
Thu Mar 22, 2007 4:46 pm
Forum: Wireless Networking
Topic: 60km running 5ghz-10mhz - bandwidth question
Replies: 10
Views: 2330

both, sometimes you can experiment with these settings, but i often set back old values
by marksx
Thu Mar 22, 2007 2:44 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

and still many many many boards don' have option to fully disable USB, etc or to manualy setup IRQ's. Even if they have, very often you can notice that these settings are not working, because very often these settins are low level ones, and mikrotik often overrides/enables them with his own. Besides...
by marksx
Thu Mar 22, 2007 2:34 pm
Forum: Wireless Networking
Topic: 60km running 5ghz-10mhz - bandwidth question
Replies: 10
Views: 2330

no, best fit on high load can cause packetloss
exact-size gives you the best performance
by marksx
Thu Mar 22, 2007 12:14 am
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

Intel 865 GBF (L) /w LAN - 5 mPCI + integrated 10/100 lan Siemens d1218 4mPCI + integrated 10/100 LAN Siemens d1219 4mPCI + integrated 10/100 LAN Gigabyte (i don't remeber model, 5PCI and one 1000Mbps lan for lga775 intel 865 based) SuperMicro board (i dont remember model) Others have problem with I...
by marksx
Wed Mar 21, 2007 9:05 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

Sorry, but can I ask marksx something about the speed he reached; Did you use the hall 4 cards to reach this speed? Or just normal Nstreme-Dual, i.e only two wireless pci cards? You don't need to apologize :-) This is speed of ONE nstreme dual (two cards per site, one for TX, one for RX) with turbo...
by marksx
Sun Mar 18, 2007 11:08 pm
Forum: Wireless Networking
Topic: 60km running 5ghz-10mhz - bandwidth question
Replies: 10
Views: 2330

yeah, but probably, you'll need to switch negotioation rate to 24Mbps (becasue signal on 20MHz is -3dB comparing to 10MHz)
That should give you about 17Mbps simplex
And of course setup nstreme /w polling enabled
framer-policy=exact-size & framer-limit=4000
that'll speedup connection to it's limit.
by marksx
Sun Mar 18, 2007 2:44 am
Forum: Wireless Networking
Topic: 60km running 5ghz-10mhz - bandwidth question
Replies: 10
Views: 2330

10MHz @ 54Mbits gives performance about 12-13Mbps half duplex (15Mbps with nsteme)
with 36Mbps mode performance is about 2 times worse = 7-8Mbps
You shouldn't be able to archieve more than that on these settings
by marksx
Thu Mar 15, 2007 12:39 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

throughput in what kind of applicatinon ? Wireless ? Ethernet router ? Firewall ? Why MT Doesn't support Via SBC's? they are great in specs... X86 versions are working, but via + mikrotik = problems and of course performance will be disasster (you will need to share interrupts within one PCI slot) V...
by marksx
Thu Mar 15, 2007 12:46 am
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

nstreme dual is better on long range links, but you will need very big antennas to get good signal on 65km good signal = good speed (even real 70Mbps full duplex) bad signal = bad speed (sometimes hard to get 10Mbps full duplex) i suggest you even pair of 150cm parabolic dish and SR-5 cards and ther...
by marksx
Wed Mar 14, 2007 7:13 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

I was waiting for the new, more powerfull routerboards and after some time i decided to build my own "router board" I've used old pentium 3 processor, because of very high performance with mikrotik software, and ultra low heat generation. For example router with pentium III 1000MHz can do the same l...
by marksx
Wed Mar 14, 2007 1:07 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 12885

i can provide you with this thing: http://img211.imageshack.us/img211/2025/bazapcnu4.jpg it's PC based solution, fully outdoor, powered from 24V DC source CPU is 1000MHz with heat on 25W level (there's option with 677MHz procesor with 15W TDP) The performance is: http://marx.kebab.org.pl/testy/nstre...
by marksx
Thu Mar 08, 2007 6:12 pm
Forum: General
Topic: Limiting and shaping using two routers?
Replies: 7
Views: 1784

yes you can have limit-at, but that will not work corectly If you want to test it - set 4 queues with 2Mbps max and 512Kbps limit-at, and start download on these 4 hosts, you will see 8Mbps of usage if you have enought bandwidth, if you will have only 2Mbps, one or two hosts will eat all of bandwidt...
by marksx
Fri Mar 02, 2007 5:52 pm
Forum: General
Topic: Limiting and shaping using two routers?
Replies: 7
Views: 1784

Hotspot is only gate that allows some users to entrance somewhere within hotspot login you can user hotpot queues, but these are only simple ones, so if means that only max-limit. If you have enough backbone (10Mbps for ten 1Mbps clients) (no overbooking) queue simple are fine, if you have overbooki...
by marksx
Tue Feb 27, 2007 3:13 am
Forum: Wireless Networking
Topic: Max clients on single radio RB with WDS..
Replies: 5
Views: 1450

there's no such limit on RB's you can connect even more but: maximum (with still some quality level) performance of single 802.11b radio is about 2500Kbits (assuming normal outdoor conditions and medium noise levels), but thats only in one direction - so you can have 1500/1000 or 2000/500 etc but ma...
by marksx
Mon Feb 26, 2007 7:01 pm
Forum: General
Topic: simple queue fairness clarification
Replies: 20
Views: 4424

the answer to your question 'firebat' is yes, you need to put the queues into a parent queue (which is the ceiling) for there to be fairness. otherwise they would just be X number of independent queues with no specific fairness. yes, that was my point You have to make separate queues for upload/dow...
by marksx
Mon Feb 26, 2007 6:53 pm
Forum: Wireless Networking
Topic: Max clients on single radio RB with WDS..
Replies: 5
Views: 1450

the only difference between routing (clasic AP-bridge - station structure) and wds-bridge, are 6 addional bytes in header of wireless packet, related to mac addresess behind the station-wds site. So there's no really difference in performance (just 6 bytes per packet), but in bigger network, there's...
by marksx
Sun Feb 25, 2007 9:56 pm
Forum: Wireless Networking
Topic: Max clients on single radio RB with WDS..
Replies: 5
Views: 1450

clients on 5GHz ? yes, but only on other MT's with nstreme with polling enabled If you are planning to use classic windows machines with 5GHz card installed, you can't reach more than 1200meters and more than 10-15clients - even with strong signal. Let assume that we will have RB532 Base station wit...
by marksx
Sun Feb 25, 2007 8:33 pm
Forum: General
Topic: simple queue fairness clarification
Replies: 20
Views: 4424

to say that this will work or not you should paste mangle configuration... There is catch with q simple & q tree in one box - yes that possible, but only in one (maybe there are more possibilites, but let assume that normal MT user don't want to know all the details regarding traffic flow, IMQ's, et...
by marksx
Sun Feb 25, 2007 8:15 pm
Forum: General
Topic: Limit Bandwidth for 64 user> IMPORTANT
Replies: 12
Views: 4044

I understand (not everything, because of big mess with these rules) but this situation should be closest to yours: http://img49.imageshack.us/img49/8824/beztytuuwo6.gif We have 10Mbits backbone, some business client(s) with guaranteed bandwidth (6Mbits) , plus we have individual coustomers with guar...
by marksx
Sat Feb 24, 2007 4:22 am
Forum: General
Topic: Mikrotik dont balance well
Replies: 2
Views: 1917

that's probably because of metod which MT uses to divide traffic on different gateways - it's loadbalancing per connection. Generaly speaking you won't be able to multiply bandwidth in one stream, but probably using download accelerators (which can use few different sessions to download) or p2p (esp...
by marksx
Sat Feb 24, 2007 2:40 am
Forum: General
Topic: Limit Bandwidth for 64 user> IMPORTANT
Replies: 12
Views: 4044

the best method is to use queue trees for example (orginally from my atricle http://www.cyberbajt.com.pl/cyber.php?get=raport,65,4 - sorry but only in polish now...) : interfaces Lan & Internet are bridged Packet mark for upload: you'll need to copy these to system scripts and run them to generate r...
by marksx
Sat Feb 24, 2007 2:28 am
Forum: General
Topic: Limiting and shaping using two routers?
Replies: 7
Views: 1784

I think that 2 machines are the the best solution to provide traffic shaping based on user address (for user-individual traffic limiting) and QoS at the same time. Mikrotik can shape traffic only on OUTGOING interfaces, in best case you will have to use ether1 & ether2 (for example) plus global-in &...
by marksx
Sat Feb 24, 2007 1:11 am
Forum: Wireless Networking
Topic: Looking for help on Bandwidth/QOS - Willing to Pay -
Replies: 2
Views: 1054

i can make some nice queues + firewalling on your router
if you're interested mail me m.burzynski @ cyberbajt.pl
if you want i can give you entrance on example ~150 user bandwidth manager

But the moderator should move this topic on other forum i think...
by marksx
Wed Dec 06, 2006 6:04 pm
Forum: Wireless Networking
Topic: 240km link , any suggestions?
Replies: 64
Views: 14305

Marksx- where can i have maps for this software! Any documentation for using this intresting application?
Program downloads maps itself from NASA site (or smtg like this)
Documentation - I'don't know, maybe google will help you.
I was learning myself on this software.
by marksx
Mon Oct 02, 2006 6:56 pm
Forum: Wireless Networking
Topic: 240km link , any suggestions?
Replies: 64
Views: 14305

i don't have them ...

Image

i'm calcultating on-the-fly ;-)
by marksx
Thu Sep 28, 2006 1:16 pm
Forum: Wireless Networking
Topic: 240km link , any suggestions?
Replies: 64
Views: 14305

i can check using radio mobile, but you should specifity GPS position + altitude
by marksx
Tue Sep 19, 2006 9:04 pm
Forum: Wireless Networking
Topic: 240km link , any suggestions?
Replies: 64
Views: 14305

by marksx
Tue Sep 19, 2006 8:13 pm
Forum: Wireless Networking
Topic: 240km link , any suggestions?
Replies: 64
Views: 14305

good news everyone! i've simulated this link using: 2x 18dBi (1,2m diameter) grid SR-9 - 900MHz mPCI with external 5W AMP (read below for addional info) link should be estabilished with nstreme dual (2 card each side) one for TX with AMP second only for recieve. 5Watt one-directional AMP should be c...
by marksx
Sat Sep 16, 2006 11:21 pm
Forum: General
Topic: PPPoE server and performance of HW
Replies: 14
Views: 3371

if you don't need to perform NAT, or satefull firewall (for ex. p2p mark), just disable connection tracking - you will lower utilization from 10% to even 80%
by marksx
Thu Sep 14, 2006 11:27 pm
Forum: Wireless Networking
Topic: 900mhz & nlos
Replies: 8
Views: 2040

it's possible to make this link running very well, but 24dBi is quite high for 900MHz, 2meter (6 feet) yagi has about 16,5dBi gain... Then try to correnct reciver sens. Receive Sensitivity Rate 1 Mbps 2 Mbps 5.5 Mbps 11 Mbps 6 Mbps 9 Mbps 11 Mbps 12 Mbps 18 Mbps 24 Mbps 36 Mbps 48 Mbps 54 Mbps Level...
by marksx
Wed Sep 13, 2006 1:06 am
Forum: Wireless Networking
Topic: 240km link , any suggestions?
Replies: 64
Views: 14305

do you have any GPS data of the point A and point B ?
i can make a simulation for you with current topography, freesnel zones, EiRP, etc
by marksx
Sun Jun 25, 2006 11:21 pm
Forum: Wireless Networking
Topic: 16 links all in one router
Replies: 7
Views: 2258

if you need better performance you'll need to throw out 4xmPCI adapter and install cards directly in PCI slot, then check IRQ conflicts, if you have audio, usb, printer, second serial, secondary IDE, etc - disable them - you will get at least 4 extra free IRQ's It's hard to find new, good MB with 5P...
by marksx
Sat Jun 10, 2006 2:59 pm
Forum: Wireless Networking
Topic: Need help, willing to pay (Queue+Firewall setup in 2.9.24)
Replies: 4
Views: 1204

I'm just curious what are these things "to do"
You can write here or send it into my mail box m.burzynski (at) cyberbajt.pl
by marksx
Fri Jun 02, 2006 7:06 pm
Forum: Wireless Networking
Topic: Power Meter shows only 100mW from SR5
Replies: 43
Views: 6343

yeah probably 1934872969467 emails with question "when, how much, how fast"
;-)
by marksx
Fri Jun 02, 2006 4:15 pm
Forum: Wireless Networking
Topic: Power Meter shows only 100mW from SR5
Replies: 43
Views: 6343

Let assume that mikrotik'll bulid x86 based routerboard, AMD or Intel based, they won't be so cheap as 5xx series (all PCI bridges, BIOSes, 4-6 layer PCB's, expensive power supplies, high temperatures, etc etc) i think that price aobut 800USD /each will be minimum. If we have such big costs client's...
by marksx
Fri Jun 02, 2006 1:46 pm
Forum: Wireless Networking
Topic: Power Meter shows only 100mW from SR5
Replies: 43
Views: 6343

sorry, IXP (intel Xscale) is a different architecture. We won't make a special RouterOS version for another architecture. Have you tested performance of IXP 425 @ 533MHz ? so the next routerboards'll be MIPS/x86 based only ? if that's true we have only few IC's for routerboard left : Au1550 (500MHz...
by marksx
Thu Jun 01, 2006 8:19 pm
Forum: Wireless Networking
Topic: Power Meter shows only 100mW from SR5
Replies: 43
Views: 6343

not now, because i don't have one
But if you can make hi resolution photo i could help

my email (if you don't want to put this on forum) m.burzynski (at) cyberbajt.pl
by marksx
Thu Jun 01, 2006 8:15 pm
Forum: Wireless Networking
Topic: enquiry regarding e1/t1 link thru wireless(mikrotik)
Replies: 4
Views: 1209

For example some VoIP hardware req. E1/E3 lines
by marksx
Thu Jun 01, 2006 7:22 pm
Forum: Wireless Networking
Topic: Power Meter shows only 100mW from SR5
Replies: 43
Views: 6343

Try to test sr-5 with 5MHz channel bandwidth, there shold be more ;-) I know that these 400mW is "marketing" but i don't care, that's about 6dB more than other cards, sometimes this can help a lot (form unstable -89 to -83) And there is still option that your power meter isn't calibrated on all band...
by marksx
Wed May 24, 2006 11:45 am
Forum: Wireless Networking
Topic: 25Km 125Mbps FDX Link
Replies: 24
Views: 10948

yes if all working fine fallback is very helpful but if rate is going down rapidly (48 -> 6Mbps or 48->36 ) we noticed very big performance loss, if we set up solid rates all is working fine, there's someting with it... On "other" devices rates are working with probing + delay, if 36M is max, then s...
by marksx
Sun May 21, 2006 8:26 pm
Forum: Wireless Networking
Topic: poll: u.fl vs. mmcx for sr2, sr5 and soldering
Replies: 28
Views: 8424

You can insert miniPCI into PCI slot using miniPCI-PCI adapter for. ex: http://www.mikrotik.com/Documentation/ia_mp1.pdf just insert mPCI to adapter and stick adapter into PCI slot You can find other adapters, cheaper ones, but if you want only one/two pcs of them, buy mikrotik ones, they are the go...
by marksx
Fri May 19, 2006 5:17 pm
Forum: Wireless Networking
Topic: 25Km 125Mbps FDX Link
Replies: 24
Views: 10948

We've tested this some time ago, and few of our clients using it for long time now... and this are problems we have met: 1. Floating signal (for ex. day -69 night -75) = floating speed, you can't do anything to remove this efect, that's the worst problem... depends on weather/humidty/temperature/ele...
by marksx
Sat May 13, 2006 4:32 am
Forum: Wireless Networking
Topic: poll: u.fl vs. mmcx for sr2, sr5 and soldering
Replies: 28
Views: 8424

m.burzynski (at) cyberbajt.pl
by marksx
Thu Mar 30, 2006 2:28 am
Forum: Wireless Networking
Topic: poll: u.fl vs. mmcx for sr2, sr5 and soldering
Replies: 28
Views: 8424

CNT 400 is smillar to LMR 400 14m @ 2,4GHz - give us about 3-4dB attenuation which is acceptable 5GHz antennas are connected with cabling below 10m, but if you don't need to make very long connection (for example few kilometers), cable legendth isn't so important, all you need to calculate budget wi...
by marksx
Wed Mar 29, 2006 11:54 pm
Forum: Wireless Networking
Topic: poll: u.fl vs. mmcx for sr2, sr5 and soldering
Replies: 28
Views: 8424

depends on distance from antenna to MT, from 4m to 14m for example main link (backbone) is 28dBi Grid + 6-7m + SR-5 through ufl-N - signal on 18km is -65dBm (with turbo + Nstreme) about 25-28Mbps full duplex performance (thanks to compression) on other side is same antenna and radio All cabling is b...
by marksx
Mon Mar 27, 2006 10:24 am
Forum: Wireless Networking
Topic: poll: u.fl vs. mmcx for sr2, sr5 and soldering
Replies: 28
Views: 8424

Have you tried multiple implementations of the MMCX-NF cables, from different sources? If so and you're seeing the same 5db deficit that would seem to clinch it. Yes, we have tested 3 (as i remember) different What kind of boards are you using in the picture, Siemens D1218 + P3 800MHz (max 22W powe...
by marksx
Mon Mar 27, 2006 7:51 am
Forum: Wireless Networking
Topic: poll: u.fl vs. mmcx for sr2, sr5 and soldering
Replies: 28
Views: 8424

no no no - mmcx is good on 5GHz, but on SR-5 mmcx's are no as good as Ufl. We tested this on about 10 "different" SR-5 (from other distributors, not a same time) and the result was that... UFL is better than MMCX on SR-5 about 5dB!! Of course we have our own UFL - Nf (or Nm or RSMA) with special ult...
by marksx
Sun Mar 26, 2006 11:33 pm
Forum: Wireless Networking
Topic: poll: u.fl vs. mmcx for sr2, sr5 and soldering
Replies: 28
Views: 8424

On UFL you will have about 5dB better signal than on MMCX
by marksx
Thu Feb 23, 2006 11:14 pm
Forum: RouterBOARD hardware
Topic: -30°C and the routerboard
Replies: 40
Views: 9357

inside: http://img510.imageshack.us/img510/6748/plytki8qn.jpg outside: 2x PW 28dBi on two ~20km ptp links (one backbone, second for bizness client) http://img468.imageshack.us/img468/5708/p10100175xj.jpg V-line 15dBi sectorized antenna: http://img468.imageshack.us/img468/7448/p10100292qs.jpg and of...
by marksx
Wed Feb 01, 2006 2:38 am
Forum: Wireless Networking
Topic: Real World Throuput test? RB511 (RIC-522)
Replies: 5
Views: 2186

7 MebaBYTES not 7 Megabits 7*8~56Mbps (56Megabits) that was performance test with full duplex traffic on two rb's: Mikrotik with 3GHZ CPU b-test --- 100Mbps FE --- RB <><>NSTREME-LINK<><> RB --- 100Mbps FE --- Windows XP machine 1,6GHz with b-test 192.168.1.21 was one RB 192.168.1.20 was second RB b...
by marksx
Wed Feb 01, 2006 2:22 am
Forum: Wireless Networking
Topic: Real World Throuput test? RB511 (RIC-522)
Replies: 5
Views: 2186

upto 7000KB/s simplex UDP
upto 10kpps siplex UDP
by marksx
Tue Jul 05, 2005 5:54 pm
Forum: General
Topic: Long Distance Links
Replies: 8
Views: 2255

we have reached up to 60Mbps on overclocked 333MHz RB532, 42Mbps on normal 266MHz, so this is NOT ENOUGH for nstreme dual, I'm waiting for new RouterBoard 3xx series with ~1GHz CPU, that would be enough :-)
by marksx
Tue Jul 05, 2005 5:35 pm
Forum: Wireless Networking
Topic: Super Range 5 in RB200
Replies: 30
Views: 8674

maybe add external power source to sr-2/5 ? on the amp specs card could give us about 31dB output power at 5V (2,4GHz 11b) :shock: :shock: :shock: btw i have done some testing with two SR5 and two SR2 on RB 14 (same time of course) and all was working fine, but that was only test without any transmi...
by marksx
Mon Mar 28, 2005 2:37 am
Forum: General
Topic: NStreme 2 Questions
Replies: 5
Views: 1559

Celeron D 2,4GHz on Bayfield 865GBFL (test on 100Mbps nic, so few megabits you can gain via changing to 1gbps)

65Full dulpex ? hard to get, but on UDP traffic it's possible

note that real trafic and trafic via wireless are two diffrent things.
by marksx
Fri Mar 25, 2005 12:08 am
Forum: General
Topic: NStreme 2 Questions
Replies: 5
Views: 1559

Re: NStreme 2 Questions

Any one using Nstreme2 in a PTP setup and turbo mode?
Working great, but You need 1Gbps NIC to use all "power of dual"
7000KB/s Download, 5800KB/s upload via ftp same time!
by marksx
Fri Mar 25, 2005 12:05 am
Forum: General
Topic: pppoe questions...
Replies: 1
Views: 760

first not this directory
second print config all submenu for ppp and /int pppoe-ser serv
then will see
by marksx
Thu Mar 24, 2005 11:58 pm
Forum: RouterBOARD hardware
Topic: Memory still leaking...
Replies: 6
Views: 2762

1. downgrade to 2.8.21
2 be shure that You have only one wireless package instaled (better option is DO NOT INSTALL WIRELSS LEGACY)
I'have original RB's on few key towers with uptime from december 2004 (2.8.21 is out )
by marksx
Thu Mar 24, 2005 11:42 pm
Forum: General
Topic: QOS Within PPPoE
Replies: 1
Views: 1306

working fine for me, You propably have bug in config
by marksx
Tue Jan 18, 2005 1:48 am
Forum: General
Topic: Redundant Point-to-Point with EoIP
Replies: 2
Views: 1272

why not ?
if primary link will fail secondary will use the same config (just write script)
nothing impossible
or we can for example bridge two interfaces and add ip not to these i-faces but to bridge, one fail second will try to backup (stp option on bridge requied)
by marksx
Sun Jan 16, 2005 9:46 pm
Forum: General
Topic: Wireless problems - Slow speeds
Replies: 18
Views: 3529

try to enable "fast-frames" option
this will give speed UP on prism cards :-)
by marksx
Fri Dec 24, 2004 12:32 pm
Forum: General
Topic: 50 - 75 km , 10 mbps , PtP
Replies: 16
Views: 5122

i think that you can connect card with feed only 1-2meters cable in this case it will be enough if you use CNT/LMR-400, if you need longer cabling (cable-feed) you need to use lmr-600 but maximum reasonable length is not more than 5-6meters in this case
by marksx
Thu Dec 16, 2004 1:43 am
Forum: General
Topic: Dual radio PtP link
Replies: 10
Views: 2128

Just do minimum 100MHz spacing between interfaces, You don't need any bandpass filters. http://www.seaveyantenna.com/catalog/p58/pg58.htm http://www.emctest.com/productpage.cfm?model=3164&producttype=Antennas these two i found via google, this second is interesting, maybe You will try ? but on 5,5GH...
by marksx
Thu Dec 16, 2004 1:07 am
Forum: General
Topic: Dual radio PtP link
Replies: 10
Views: 2128

splitter will damage your recieve card
Only way on one dish is using cros feeders.
or 2 antennas for example 2x mars 23dBi panel on each side, if You use short cabling You will reach maybe 25fdx on 10km
by marksx
Wed Dec 15, 2004 11:16 pm
Forum: General
Topic: Dual radio PtP link
Replies: 10
Views: 2128

use cross polrised feed, if You search, You will find source...
by marksx
Thu Dec 09, 2004 9:05 pm
Forum: General
Topic: DWL-AG530 (AR5213) & 2.8.21
Replies: 6
Views: 2194

Normis, You will need to correct few things ;-) first : 0 wlan3 00:0F:3D:0F:C0:C2 no -21 11Mbps 1 wlan3 00:0D:88:A4:58:A3 no -22 2Mbps 2 wlan3 00:30:4F:2C:4C:80 no -23 11Mbps 3 wlan3 00:40:05:31:EA:BC no -22 11Mbps 4 wlan3 00:40:05:55:EF:37 no -20 11Mbps 5 wlan3 00:40:F4:95:4D:E8 no -30 2Mbps 6 wlan...
by marksx
Tue Dec 07, 2004 12:45 pm
Forum: General
Topic: 50 - 75 km , 10 mbps , PtP
Replies: 16
Views: 5122

Yes, but Amp won't work at speeds 54Mbps on this power too.
by marksx
Mon Dec 06, 2004 9:18 pm
Forum: General
Topic: 50 - 75 km , 10 mbps , PtP
Replies: 16
Views: 5122

In my conutry i can buy these dish from http://www.mabo.pl they have good antennas :-) It's very uncommon thing but is not impossible to find(You can import to Your country if you wery want) I heard that some people made link's almost 60km long on 150cm dishes, without amp, with great 35Mbps speed's...
by marksx
Sat Dec 04, 2004 10:17 pm
Forum: General
Topic: 50 - 75 km , 10 mbps , PtP
Replies: 16
Views: 5122

buy 2x solid parabolic dish 180cm diameter
don't use AMP
use VERY SHORT CABLES
by marksx
Sun Nov 28, 2004 3:10 pm
Forum: General
Topic: HUGE problem with MT
Replies: 13
Views: 4286

Maybe base station atheros is changing output power... on turbo mode (weak signal - low bandwidtch ex 12 - 18Mb @ -85) power of atheros both turbo and without, are ~ the same. if one of station will negotiate higher speeds ex. 48-54 MT will lower transmit power... this is ~ 10-12dBm lower (on mikrot...
by marksx
Sun Nov 28, 2004 2:55 pm
Forum: General
Topic: atheros ar5213 lot of problems, low lange, big pings ...
Replies: 14
Views: 5181

yes we have the same problems with cards "planet 8310" but not all cards have these problems: ex. ~10 cards, 3 works PERFECT 5 have high ping issue (1ms,1ms,40ms,500ms,400ms,700ms,30ms,1ms...) 2 others have packet loss ! try changing options: Nstreme turbo mode WEP and of course send supout ;-) PS. ...
by marksx
Sat Nov 27, 2004 10:07 pm
Forum: General
Topic: strange connections on my MT router !!! please look at this!
Replies: 3
Views: 2255

just p2p
example ? emule(on these ports is propably mule) ,kazza, bittorrent
by marksx
Fri Jul 16, 2004 8:25 pm
Forum: General
Topic: Supported but won't work
Replies: 1
Views: 1380

Supported but won't work

I've bought two compaq wl-200 cards, I was thinking that will work fine, but mikrotik won't regonize them. Compaq WL100/ 200 11Mb/s 802.11b WLAN Card this quote from driverlist, I will sell these card if no one can help me, but if these card are trully UNSUPPORTED - please remove them from driverlis...