2 x 433AH + 2 x R52N + Os4.6 link a 8,7Km HELP !

[AndreaN]

Ragazzi intanto mi presento mi chiamo Andrea e vivo in sicilia, estremo sud, è da molti hanni che smanetto con il wireless, ma sempre a livelli amatoriali.
Ho un piccolo problema, vi spiego: Ho un link di 8,7 km composto da 2 routerboard 433AH, 2 R52N e 2 antenne Ubiquity BaseStation da 17db, da 90°.
Allora ho provato il link a distanze ravvicinate circa 500 metri ed arrivo ad avere un link di 243Mbps con 80,90 Mbps di passtrough UDP.
Appena ho messo il link a quasi 9 km di distanza, la velocità è scesa a 36mbps con 4Mbps di passtrough UDP. Il fatto strano è che con un segnale di -72db i canali a 20 e 40 Mhz non vengono negoziati. Sul datasheet della R52N si vede chiaramente che la soglia di ricezione della scheda per i canali a 20 e 40 è questa:
802.11n 5GHz
MCS0 20MHz -97/-95 21/19
MCS0 40MHz -93/-91 19
MCS7 20MHz -78/-76 16
MCS7 40MHz -75/-73 13
Ho provato ad utilizzare Nstreme, WDS e a fare un link in MPLS ma niente di niente. Resto fermo a 36Mbps.
Qualcuno sa darmi qualche suggerimento? Più tardi vi posto la configurazione, da qui non ho accesso alle ROS.
Grazie

[parabolino]

Come mai vuoi fare 9 km utilizzando antenne non direttive?

Se la velocità sulle radio è quella, non puoi fare miracoli cambiando altro (WDS, MPLS,...).
Il tuo problema pare essere a livello radio.

Descrivici un po' meglio il tuo sistema.. se sono due nodi, non vedo perchè usare delle settoriali con apertura di 90°...
...oppue mi sfugge qualcosa

ps: benvenuto

[parabolino]

i canali a 20 e 40 Mhz non vengono negoziati

Vuoi dire che al momento sei a 10Mhz o meno?

[AndreaN]

Si al momento aggancia solamente i 5Ghz.
Uso delle settoriali perchè avrei necessità di coprire con un punto 2 punti in WDS.
Ho pure io pensato che siano le antenne, infatti sto acquistando dei pannelli da 24db con apertura 6°, ma ciò che non mi spiego io è che
il segnale è ben -72. E la cosa che mi fa dannare di più e che se prendo due Nano 5M in airMax riesco ad avere un link di 160Mbps e con un PassTrough di 35Mbps effettivi.
Ora penso il problema non sono le antenne, sarà mica il supporto, ovvero il RouterOs o i driver delle R52N visto che dalla ROS vengono riconosciute come: Unknow device ?
Stasera vi posto la configurazione.
Grazie

[parabolino]

Che versione di ROS hai?

[AndreaN]

la 4.6

[parabolino]

Strano.

Pota anche qualche schermata delle statistiche del segnale delle radio.

[AndreaN]

Conf. AP

/interface wireless
set 0 ack-timeout=dynamic adaptive-noise-immunity=none allow-sharedkey=no \
antenna-gain=0 area="" arp=enabled band=5ghz-a/n basic-rates-a/g=\
6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,54Mbps basic-rates-b=\
1Mbps,2Mbps,5.5Mbps,11Mbps comment="" compression=no country=\
no_country_set default-ap-tx-limit=0 default-authentication=yes \
default-client-tx-limit=0 default-forwarding=yes dfs-mode=none \
disable-running-check=no disabled=no disconnect-timeout=3s \
frame-lifetime=0 frequency=5180 frequency-mode=manual-txpower hide-ssid=\
no ht-ampdu-priorities=0,1 ht-amsdu-limit=8192 ht-amsdu-threshold=8192 \
ht-basic-mcs="mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7,mcs-8,mcs-9,\
mcs-10,mcs-11,mcs-12,mcs-13,mcs-14,mcs-15" ht-extension-channel=\
above-control ht-guard-interval=any ht-rxchains=0,1 ht-supported-mcs="mcs-\
0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7,mcs-8,mcs-9,mcs-10,mcs-11,mcs-\
12,mcs-13,mcs-14,mcs-15" ht-txchains=0,1 hw-fragmentation-threshold=\
disabled hw-protection-mode=none hw-protection-threshold=0 hw-retries=4 \
l2mtu=2290 mac-address=00:0C:42:3A:D0:5D max-station-count=12 mode=\
ap-bridge mtu=1500 name=wlan1 on-fail-retry-time=100ms \
periodic-calibration=disabled periodic-calibration-interval=60 \
preamble-mode=both proprietary-extensions=post-2.9.25 radio-name=\
000C423AD05D rate-set=default scan-list=default security-profile=Lain_Key \
ssid=Lain station-bridge-clone-mac=00:00:00:00:00:00 supported-rates-a/g=\
6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,54Mbps supported-rates-b=\
1Mbps,2Mbps,5.5Mbps,11Mbps tx-power=25 tx-power-mode=card-rates \
update-stats-interval=disabled wds-cost-range=50-150 wds-default-bridge=\
bridge1 wds-default-cost=100 wds-ignore-ssid=no wds-mode=static \
wmm-support=enabled
set 1 ack-timeout=dynamic adaptive-noise-immunity=none allow-sharedkey=no \
antenna-gain=0 antenna-mode=ant-a area="" arp=enabled band=5ghz \
basic-rates-a/g=6Mbps basic-rates-b=1Mbps burst-time=disabled comment="" \
compression=no country=no_country_set default-ap-tx-limit=0 \
default-authentication=yes default-client-tx-limit=0 default-forwarding=\
yes dfs-mode=none disable-running-check=no disabled=yes \
disconnect-timeout=3s frame-lifetime=0 frequency=5745 frequency-mode=\
manual-txpower hide-ssid=no hw-fragmentation-threshold=disabled \
hw-protection-mode=none hw-protection-threshold=0 hw-retries=4 \
mac-address=00:0C:42:39:69:4A max-station-count=12 mode=ap-bridge mtu=\
1500 name=wlan2 noise-floor-threshold=default on-fail-retry-time=100ms \
periodic-calibration=disabled periodic-calibration-interval=60 \
preamble-mode=both proprietary-extensions=post-2.9.25 radio-name=\
000C4239694A rate-set=default scan-list=default security-profile=Lain_Key \
ssid=Lain_distr station-bridge-clone-mac=00:00:00:00:00:00 \
supported-rates-a/g=6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,54Mbps \
supported-rates-b=1Mbps,2Mbps,5.5Mbps,11Mbps tx-power=25 tx-power-mode=\
card-rates update-stats-interval=disabled wds-cost-range=50-150 \
wds-default-bridge=none wds-default-cost=100 wds-ignore-ssid=no wds-mode=\
disabled wmm-support=disabled
/interface wireless nstreme
set wlan1 comment="" disable-csma=no enable-nstreme=yes enable-polling=yes \
framer-limit=3200 framer-policy=none
set wlan2 comment="" disable-csma=no enable-nstreme=no enable-polling=yes \
framer-limit=3200 framer-policy=none
/interface wireless manual-tx-power-table
set wlan1 comment="" manual-tx-powers="1Mbps:17,2Mbps:17,5.5Mbps:17,11Mbps:17,\
6Mbps:17,9Mbps:17,12Mbps:17,18Mbps:17,24Mbps:17,36Mbps:17,48Mbps:17,54Mbps\
:17,HT20-0:0,HT20-1:0,HT20-2:0,HT20-3:0,HT20-4:0,HT20-5:0,HT20-6:0,HT20-7:\
0,HT40-0:0,HT40-1:0,HT40-2:0,HT40-3:0,HT40-4:0,HT40-5:0,HT40-6:0,HT40-7:0"
set wlan2 comment="" manual-tx-powers="1Mbps:17,2Mbps:17,5.5Mbps:17,11Mbps:17,\
6Mbps:17,9Mbps:17,12Mbps:17,18Mbps:17,24Mbps:17,36Mbps:17,48Mbps:17,54Mbps\
:17,HT20-0:0,HT20-1:0,HT20-2:0,HT20-3:0,HT20-4:0,HT20-5:0,HT20-6:0,HT20-7:\
0,HT40-0:0,HT40-1:0,HT40-2:0,HT40-3:0,HT40-4:0,HT40-5:0,HT40-6:0,HT40-7:0"


Station WDS:

/interface wireless
set 0 ack-timeout=dynamic adaptive-noise-immunity=none allow-sharedkey=no \
antenna-gain=0 area="" arp=enabled band=5ghz-a/n basic-rates-a/g=6Mbps \
basic-rates-b=1Mbps comment="" compression=no country=no_country_set \
default-ap-tx-limit=0 default-authentication=yes default-client-tx-limit=\
0 default-forwarding=yes dfs-mode=none disable-running-check=no disabled=\
no disconnect-timeout=3s frame-lifetime=0 frequency=5180 frequency-mode=\
manual-txpower hide-ssid=no ht-ampdu-priorities=0,1 ht-amsdu-limit=8192 \
ht-amsdu-threshold=8192 ht-basic-mcs=\
mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7 ht-extension-channel=\
above-control ht-guard-interval=any ht-rxchains=0,1 ht-supported-mcs="mcs-\
0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7,mcs-8,mcs-9,mcs-10,mcs-11,mcs-\
12,mcs-13,mcs-14,mcs-15" ht-txchains=0,1 hw-fragmentation-threshold=\
disabled hw-protection-mode=none hw-protection-threshold=0 hw-retries=4 \
l2mtu=2290 mac-address=00:0C:42:61:0E:C5 max-station-count=2007 mode=\
station-wds mtu=1500 name=wlan1 on-fail-retry-time=100ms \
periodic-calibration=disabled periodic-calibration-interval=60 \
preamble-mode=both proprietary-extensions=post-2.9.25 radio-name=\
000C42610EC5 rate-set=default scan-list=default security-profile=Lain_Key \
ssid=Lain station-bridge-clone-mac=00:00:00:00:00:00 supported-rates-a/g=\
6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,54Mbps supported-rates-b=\
1Mbps,2Mbps,5.5Mbps,11Mbps tx-power=25 tx-power-mode=card-rates \
update-stats-interval=disabled wds-cost-range=50-150 wds-default-bridge=\
none wds-default-cost=100 wds-ignore-ssid=no wds-mode=disabled \
wmm-support=enabled
set 1 ack-timeout=dynamic adaptive-noise-immunity=none allow-sharedkey=no \
antenna-gain=0 area="" arp=enabled band=5ghz basic-rates-a/g=6Mbps \
basic-rates-b=1Mbps comment="" compression=no country=no_country_set \
default-ap-tx-limit=0 default-authentication=yes default-client-tx-limit=\
0 default-forwarding=yes dfs-mode=none disable-running-check=no disabled=\
yes disconnect-timeout=3s frame-lifetime=0 frequency=5180 frequency-mode=\
manual-txpower hide-ssid=no ht-ampdu-priorities=0 ht-amsdu-limit=8192 \
ht-amsdu-threshold=8192 ht-basic-mcs=\
mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7 ht-extension-channel=\
disabled ht-guard-interval=any ht-rxchains=0 ht-supported-mcs="mcs-0,mcs-1\
,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7,mcs-8,mcs-9,mcs-10,mcs-11,mcs-12,mcs-\
13,mcs-14,mcs-15" ht-txchains=0 hw-fragmentation-threshold=disabled \
hw-protection-mode=none hw-protection-threshold=0 hw-retries=4 \
mac-address=00:0C:42:3A:D0:1F max-station-count=2007 mode=station mtu=\
1500 name=wlan2 on-fail-retry-time=100ms periodic-calibration=default \
periodic-calibration-interval=60 preamble-mode=both \
proprietary-extensions=post-2.9.25 radio-name=000C423AD01F rate-set=\
default scan-list=default security-profile=default ssid=Vox \
station-bridge-clone-mac=00:00:00:00:00:00 supported-rates-a/g=\
6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,54Mbps supported-rates-b=\
1Mbps,2Mbps,5.5Mbps,11Mbps tx-power-mode=default update-stats-interval=\
disabled wds-cost-range=50-150 wds-default-bridge=none wds-default-cost=\
100 wds-ignore-ssid=no wds-mode=disabled wmm-support=disabled
/interface wireless nstreme
set wlan1 comment="" disable-csma=no enable-nstreme=yes enable-polling=yes \
framer-limit=3200 framer-policy=best-fit
set wlan2 comment="" disable-csma=no enable-nstreme=no enable-polling=yes \
framer-limit=3200 framer-policy=none
/interface wireless manual-tx-power-table
set wlan1 comment="" manual-tx-powers="1Mbps:17,2Mbps:17,5.5Mbps:17,11Mbps:17,\
6Mbps:17,9Mbps:17,12Mbps:17,18Mbps:17,24Mbps:17,36Mbps:17,48Mbps:17,54Mbps\
:17,HT20-0:0,HT20-1:0,HT20-2:0,HT20-3:0,HT20-4:0,HT20-5:0,HT20-6:0,HT20-7:\
0,HT40-0:0,HT40-1:0,HT40-2:0,HT40-3:0,HT40-4:0,HT40-5:0,HT40-6:0,HT40-7:0"
set wlan2 comment="" manual-tx-powers="1Mbps:17,2Mbps:17,5.5Mbps:17,11Mbps:17,\
6Mbps:17,9Mbps:17,12Mbps:17,18Mbps:17,24Mbps:17,36Mbps:17,48Mbps:17,54Mbps\
:17,HT20-0:17,HT20-1:17,HT20-2:17,HT20-3:17,HT20-4:17,HT20-5:17,HT20-6:17,\
HT20-7:17,HT40-0:17,HT40-1:17,HT40-2:17,HT40-3:17,HT40-4:17,HT40-5:17,HT40\
-6:17,HT40-7:17"

[AndreaN]

[parabolino]

Hai un CCQ pessimo... il problema è li.