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whitestargh
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Topic Author
Posts: 28
Joined: Tue Feb 08, 2011 2:48 pm

Fluctuating CPE rx-rate

Mon Jan 30, 2012 6:02 am

Hello Folks

I recently set up a PtP with two RB433 using the R52HN radio cards powered by grid antennae 24dbi. The link distance is approx 2.4 km.
RouterOS version 5.11

I am using nstreame wireless protocol. Everything seems to be ok except the client side (station-bridge) seem to show fluctuating rx-rate which frequently fall back to 6mbps after spiking to 54, 48, 36 etc.

However the tx-rate is however pegged at 54mbps.

on the AP side there seem to be little ofdm errors

AP-Side
========
status: running-ap
band: 5ghz-n
frequency: 5260MHz
wireless-protocol: nstreme
noise-floor: -111dBm
overall-tx-ccq: 100%
registered-clients: 1
authenticated-clients: 1
polling: yes
csma-disabled: yes
wmm-enabled: yes
current-tx-powers: 6Mbps:22(22/22),9Mbps:22(22/22),12Mbps:22(22/22),18Mbps:22(22/22),24Mbps:22(22/22),36Mbps:20(20/20),48Mbps:19(19/19),54Mbps:18(18/18),
HT20-0:21(21/21),HT20-1:20(20/20),HT20-2:19(19/19),HT20-3:18(18/18),HT20-4:17(17/17),HT20-5:16(16/16),HT20-6:15(15/15),HT20-7:15(15/15)
current-ofdm-errors: 154
notify-external-fdb: no

Client Side
========
routeros-version: 5.11
last-ip: 94.208.29.249
802.1x-port-enabled: yes
authentication-type: wpa2-psk
encryption: aes-ccm
group-encryption: aes-ccm
management-protection: yes
compression: no
wmm-enabled: yes
current-tx-powers: 6Mbps:22(22/22),9Mbps:22(22/22),12Mbps:22(22/22),18Mbps:22(22/22),24Mbps:22(22/22),36Mbps:20(20/20),48Mbps:19(19/19),54Mbps:18(18/18),
HT20-0:21(21/21),HT20-1:20(20/20),HT20-2:19(19/19),HT20-3:18(18/18),HT20-4:17(17/17),HT20-5:16(16/16),HT20-6:15(15/15),HT20-7:15(15/15)
current-ofdm-errors: 2771
notify-external-fdb: no

Could this be an antennae alignment problem.

Please advise

kind regards
 
whitestargh
newbie
Topic Author
Posts: 28
Joined: Tue Feb 08, 2011 2:48 pm

Re: Fluctuating CPE rx-rate

Sun Feb 12, 2012 6:13 pm

Hello

any clues as to why nstreme protocol is giving low rx-rate for station-bridge / client side radio?

kind regards
 
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saintofinternet
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Joined: Thu Oct 15, 2009 3:52 am

Re: Fluctuating CPE rx-rate

Thu Mar 29, 2012 4:26 am

any update????
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Belyivulk
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Location: Whangarei, New Zealand
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Re: Fluctuating CPE rx-rate

Fri Mar 30, 2012 5:52 am

How are you seeing the OFDM errors?

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