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Lupin
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52km NetMetal-AC Link

Fri Nov 14, 2014 7:27 am

We try to create a 52km link with NetMetal (RouterOS: 6.21.1)

Setting
channel width 20/40Ce
protocol: nv2 (with security)
Wireless Mode: onlyAC

We using a dual pol 34dB antennas
Signal is -51/-51

But link can't be established

Log says:
15:50:05 wireless,info 4C:5E:0C:7C:XX:XX@wlan1: failed to connect, on 5460000, medium-access timeout
15:50:21 wireless,info 4C:5E:0C:7C:XX:XX@wlan1: failed to connect, on 5460000, ranging timeout


Seems to be a distance problem, but also setting the NV2-distance to 80km nothing change
 
zyzelis
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Re: 52km NetMetal-AC Link

Fri Nov 14, 2014 7:50 am

Hello,
Hard to comment without seeing configs, but 70% probability, that you did config mistake.

Post /export verbose here without sensivity information
 
Lupin
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Re: 52km NetMetal-AC Link

Fri Nov 14, 2014 8:07 am

ACCESS POINT
/interface bridge
add name=br-diff
/interface wireless
set [ find default-name=wlan1 ] antenna-gain=34 band=5ghz-onlyac channel-width=20/40mhz-Ce country=italy default-authentication=no disabled=no frequency=5460 frequency-mode=superchannel l2mtu=\
    1600 mode=ap-bridge nv2-cell-radius=80 nv2-security=enabled rx-chains=0,1 ssid=XXX tdma-period-size=auto tx-chains=0,1 \
    wireless-protocol=nv2
/interface bridge port
add bridge=br-diff interface=ether1
add bridge=br-diff interface=wlan1
/interface wireless access-list
add interface=wlan1 mac-address=4C:5E:0C:6F:XX:XX
/ip address
add address=x.x.1.130/30 interface=br-diff 
/ip route
add distance=1 gateway=x.x.1.129
/system routerboard settings
set cpu-frequency=720MHz

STATION
/interface bridge
add name=br-diff
/interface wireless
set [ find default-name=wlan1 ] antenna-gain=34 band=5ghz-onlyac channel-width=20/40mhz-Ce country=italy default-authentication=no disabled=no frequency-mode=superchannel l2mtu=1600 mode=\
    station-bridge nv2-security=enabled rx-chains=0,1 scan-list=5180,5460,5500,5600,5700 ssid=XXX tx-chains=0,1 wireless-protocol=\
    nv2-nstreme-802.11
/interface bridge port
add bridge=br-diff interface=ether1
add bridge=br-diff interface=wlan1
/interface wireless connect-list
add interface=wlan1 mac-address=4C:5E:0C:7C:YY:YY
/ip address
add address=x.x.0.130/30 interface=br-diff
/ip route
add distance=1 gateway=x.x.0.129
/system routerboard settings
set cpu-frequency=720MHz
 
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Caelis
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Re: 52km NetMetal-AC Link

Fri Nov 14, 2014 8:29 am

Sure its config mistake, but your conf looks ok, i have a 60km link with the net metal 5 ac, and i love it, btw im using Jirous Antenna Ubiquiti antennas also work ok but no the same as Jirous


cant post img forum changes
 
Lupin
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Re: 52km NetMetal-AC Link

Fri Nov 14, 2014 9:44 am

Some details of your configuration?
You use NV2?
tdma period size
cell radius?
channel width?
Only AC?
 
zyzelis
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Re: 52km NetMetal-AC Link

Fri Nov 14, 2014 10:08 am

Lupin.
I am not sure if ac works with this set of wireless config:
band=5ghz-onlyac channel-width=20/40mhz-Ce
if you will change it to
band=5ghz-a/n/ac channel-width=20/40/80mhz-Ceee
what happens?
Station connects to ap?
what records appears in logs when station connecting to ap?

And what reason is to use
default-authentication=no 
???
 
uldis
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Re: 52km NetMetal-AC Link

Fri Nov 14, 2014 2:17 pm

post the logs from the AP and the Station.
Make sure that you have specified the correct nv2-preshared-key on both ends.
Try setting the tdma-period size to a static one, for example 2.
 
Lupin
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Re: 52km NetMetal-AC Link

Sat Nov 15, 2014 1:34 pm

Setting tdma to 2ms as suggested, link go up
So, BWtest show me bad results.

Frequency 5460, 40Mhz, Ce
rx_40Mhz_tdma2.jpg
tx_40Mhz_tdma2.jpg
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Lupin
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Re: 52km NetMetal-AC Link

Sat Nov 15, 2014 1:40 pm

Changing to
Frequency 5480, 40Mhz, Ce
rx_40Mhz_tdma2.jpg
tx_40Mhz_tdma2.jpg
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danletkeman
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Re: 52km NetMetal-AC Link

Sat Nov 15, 2014 9:01 pm

Sure its config mistake, but your conf looks ok, i have a 60km link with the net metal 5 ac, and i love it, btw im using Jirous Antenna Ubiquiti antennas also work ok but no the same as Jirous


cant post img forum changes
Could you try attaching images now? I am curious to see your config as well.
 
Lupin
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Re: 52km NetMetal-AC Link

Mon Nov 17, 2014 8:51 am

Found the best frequency
TDMA Period Size:2ms
Channel Width: 20/40Mhz Ce (with 80MHz is worse)
Wireless Protocol: NV2 (with security)
RouterOS: 6.21.1

Results UDP
download.jpg
upload.jpg
Ping
ping.jpg
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jaykay2342
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Re: 52km NetMetal-AC Link

Wed Nov 26, 2014 3:03 pm

150mbit/s over 52km is nice. Can you tell us more about your setup.
  • How does the are look like?
  • Meters over ground?
  • Output power?
 
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Caelis
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Re: 52km NetMetal-AC Link

Sat Nov 29, 2014 4:44 pm

Sorry, this is the main link 43 km on old software

Image


another link to complete de full link

Image

after upgrade main link but nv1 very stable 200 mbps 1- 2 ms

Image


config nv1 ap
/interface wireless
set [ find default-name=wlan1 ] ampdu-priorities="" band=5ghz-onlyac \
    basic-rates-a/g="" bridge-mode=disabled channel-width=20/40mhz-Ce \
    disabled=no disconnect-timeout=1s frequency=5420 frequency-mode=\
    superchannel l2mtu=1600 max-station-count=2 mode=bridge name=Wireless \
    nv2-cell-radius=48 radio-name="N2SLink SD-PA" rate-set=configured \
    rx-chains=0,1 scan-list=5420 security-profile=Security ssid=\
    "N2SLink SD-PA" supported-rates-a/g="" tdma-period-size=3 tx-chains=0,1 \
    vht-supported-mcs=mcs0-7,mcs0-7 wds-default-bridge=Bridge wds-mode=\
    dynamic wireless-protocol=nstreme
/interface wireless nstreme
set Wireless enable-nstreme=yes framer-limit=3998 framer-policy=best-fit
confi nv1 st
/interface wireless
set [ find default-name=wlan1 ] ampdu-priorities="" band=5ghz-a/n/ac \
    basic-rates-a/g="" channel-width=20/40mhz-Ce disabled=no \
    disconnect-timeout=1s frequency=5420 frequency-mode=superchannel l2mtu=\
    1600 mode=station-wds name=Wireless radio-name="N2SLink PA-SD" rate-set=\
    configured rx-chains=0,1 scan-list=5420 security-profile=Security ssid=\
    "N2SLink SD-PA" supported-rates-a/g="" tx-chains=0,1 vht-supported-mcs=\
    mcs0-7,mcs0-7 wireless-protocol=nstreme
/interface wireless nstreme
set Wireless enable-nstreme=yes
on nv2 de only diference is that i use tdma period size static on 3ms for more than 30km on less 2ms and at least 5 km more on cell radius.
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qverty2012
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Re: 52km NetMetal-AC Link

Sun Jan 04, 2015 10:50 am

Great. Which antenna do you use - Mikrotik, Ubnt, Jirous?

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