luckily i m asked to deliver high speed internet connection in a shopping mall near about 527 connections..but this mall is located vary far frm the main city..about 18-19 kms frm my main internet office..i m little bit afraid abt wireless link..because i dont hav good expreinces abt wireless link..but in this case i dont hav any other choice to carry the internet to the mall..in the mean time few of my frds suggest me to use mikrotik..they all told e that MIKROTIK IS LIKE A GEM.(if u configured them properly)…so now i m looking to held a mast over mall’s roof..and i hav got a mast already at my main intenet office..i want to link mall frm my office(PTP)but i m still cnfused which RB and which MINI PCI card i can use?..bec i m liitle concern abt the throughput and connectivity..bec 527 coustomers are really a BIG TRAFFIC..and furthermore they all will be having a min 128 kbps connection and few can go for much higher speeds..I despartely need help frm u people..plz help me to win this battle…and yes..plzz do tell me the right method to configure them to achive best out of these mikrotik..bec whenever i asked my loacal frds. they told me different configurtion method individually to built this PTP link.
Use a routerboard 600 with dual R52 cards and Dual pol 28dBi antenna and implement dual nstreme. You need to have two seperate link likE this then use two Routerboard 1000 to bond the two seperate dual nstreme links at your end and at the other end. This should guarantee you a minimum of 80Mbps wireless link to guarantee the 128kbps and above for your all your 527 clients.
This equipment recommendation assumes that all 527 clients will be using 128kbps minimum 24/7.
thx@okey..
well this seems to be an exellent idea…previosuly most of the people suggest me to use sr2 or R52H..but is r52 is sufficinet?..and sory to say..but i dont hav any idea of nstream or bonding..i just simply used senao, dlink, netgear they all are easy to configure…but i find mikrotik very difficult..so if u plz guide me in building this link…plzz tell me a evry single step to configure it i a kid to mikrotik. i m egarly looking forwoard to get help frm great people in mikrotik forum..
regards..
wireless12 -
You will definately need to use R52H cards for that distance or, I would recommend using XR2 cards.
I would not use Nstreme Dual at this time, there are still issues with it in the latest ROS version. Bonding is an option. I would use standard single Nstreme channels (2 at each end) with an RB600. You could then use OSPF or static routing and dual gateways to achieve 30 - 80mbps (all depends on the wireless signal quality and strength and channel selection(s) ). You could also use the bonding option. You’ll have to try both to see which one works best for you.
I do not know about your end, but we do several stable links of 20- 25km regularly with R52 card. R52H yet to be as field tested as R52. I have about 100 R52H left in stock and have used many but still prefer the R52 for 5GHz links. I have tested excellent perfomance of the R52H on 2.4GHz in a project for a university. On 5GHz i am yet to be impressed.
Now back to Wireless12,
You need to order the equipment spec from the closest reselelr/distributor to you. If you were in my country i will give you a money back guarantee on the solution with a 2days comit period to have the link up and QoS tested. The two days commit is obviously after a site survey. The site survey report needs to say that there is clear line of sight and that the link is possible.
If there are issue with the OS 3.X for Dual Nstreme implementation then just downgrade to 2.9 STABLE and implement your dual nstreme.
Equipment spec: QTY
Mikrotik Routerboard 600, with dual R52 card in outdoor case 4
Pacific Wireless Dual Pol 5GHz wide band Dish antenna (28dBi or 32dBi)
2m low loss LMR 600 jumper cable with N-type male connectors
Mikrotik Routerboard 1000 2
Wireless link implementation is not trial and error, a simple link budget calculation will tell you that a 28dBi anten with a 65mW card will do a 20km link with following estimated readout;
Free Space Loss: 132.7dB
Fade Margin: 19.56
EIRP: 45dBm (I used 1dB for jumper cable loss)
Espected RSSI: -60.7dBm
Actual Fade Margin: 24.3dB
Now if you used a 32dBi antenna you get
Espected RSSI: -52.7dBm
At that signal strength you will be able to get the most throughput from those boards and link.
Bottom line is that this is my view and you need a second opinion from one or more Mikrotik field professionals.