First I setup 2 independent nstreme links, before I start with NSTREME2.
P4 on each end, 5 SR5 cards in every P4.
I choose 2 cards on each end, connect them with 29dBi Grid Antennas..
Signal with every Tryout (SR5 to SR5 with 29dBi, over 65Km distance)
is about -68 to -75 on both antennas and links.
Nstreme Single Bandwidth Test:
It gives approximately about 16-22Mbit/sec in one direction, 9Mbit/sec in both. DATA Rate is 12Mbit/sec.. Better bandwidth with 24 and 18 data rate but, it can heppend for link to be disconnected for 1 sec sometimes and this can result in lost packets, so I choose 12.
Framer policy: exact
Framer limit: 2500
Turbo Mod: tried with various frequencies
polling: turned on
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Conclusion:
Bandwidth is excellent with 0% lost packets in all cases.
MAIN PROBLEM is LATENCY. It can be very erratic: 1. 1-20ms with low internet real traffic (pppoe tunels); 2. 1-50ms and more with internet traffic up to approx. 1.5Mbit/sec in each direction. Also very erratic.
In comparation to WDS and Bridge mode, single nstreme have poor latency performance, but better bandwidth.
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NSTREME DUAL
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Nstreme Dual setup with the same cards, antennas, framer limit and policy. Signal -68 to -75 on both RX and TX..
Tried with various frequencies.
When i start it, it was something that i didn't expect to see.
WOW, latency constantly up to 1.3ms..
Bandwidth: send= about 22M, receive about 19M...
Both= 7/7
Excellent results. But...
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PROBLEM: IT WORKED EXCELLENT FOR 5 DAYS. THEN ONE DAY, bandwidth significiantly dropped, up to 1Mbit/sec in both directions (up to 4 in one direction). Latency also, 1-20ms erratic and not constantly anymore. Setup is the same, nothing was touched.
I thought that frequencies are not clean, so I tried with other ones, which are at least 200MHZ separated. But no impovement, just worse...
Also, I tried again to use NSTREME SINGLE ON BOTH antennas, and single nstreme setup works perfectly again, of course with erratic PING TIMES, WHICH I HATE
I really do not understand what can be the problem. Somebody, to help ?
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I was forced to back to single NSTREME with good bandwitdh and poor latency performance (erratic).
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NOTICED ONE PROBLEM WITH SINGLE NSTREME WHICH CAN OCCUR:
if you use bridge mode and wds on one part of the network, and station wds with nstreme on other part of the network: You can have strange behavior of network where you have bridge and wds links, sometimes they can lose integrity until you separate network with stations wds.
Solution is also NSTREME DUAL, but as you see it doesn't work properly for me.
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If somebody have comments, please post it right now.