appeal to developers Mikrotik

RouterOS Wireless Networking
1

Hello, I would question whether it is planned mikrotik somehow address the issue of PtP connections.
When I do need 4 jumps on 802.11n MIMO 2x2, so I can use protocols and classic 802.11n NV2, Nstreme that worked perfectly for 802.11a, unfortunately, does not work on MIMO 2x2.
I would like to ask if mikrotik will do a similar protocol as Nstreme that would go to MIMO 2x2. NV2 is unfortunately a few times in the same jumps unusable because it is insanely up latency and thus decreases the speed TCP.
Unfortunately, conventional 802.11n has insanely high latency to be approximately 80ms in flow 20Mb / s!

Thank you for your response.

2

I have not heard about such issues. Can you please give us more details about your setup, maybe it can be improved.

3

Here’s sending one joint set of five lines:

/interface wireless
set 0 adaptive-noise-immunity=none allow-sharedkey=no antenna-gain=0 area="" \
    arp=enabled band=5ghz-onlyn basic-rates-a/g=6Mbps bridge-mode=enabled \
    channel-width=20mhz comment=m01 compression=no country="czech republic" \
    default-ap-tx-limit=0 default-authentication=yes default-client-tx-limit=\
    0 default-forwarding=yes dfs-mode=none disable-running-check=yes \
    disabled=no disconnect-timeout=3s distance=dynamic frame-lifetime=0 \
    frequency=5500 frequency-mode=manual-txpower frequency-offset=0 \
    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-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,mcs-16,mcs-1\
    7,mcs-18,mcs-19,mcs-20,mcs-21,mcs-22,mcs-23" ht-txchains=0,1 \
    hw-fragmentation-threshold=disabled hw-protection-mode=none \
    hw-protection-threshold=0 hw-retries=7 l2mtu=2290 mac-address=\
    00:0C:42:88:9B:C1 max-station-count=2007 mode=bridge mtu=1500 \
    multicast-helper=default name=wlan1 noise-floor-threshold=default \
    nv2-cell-radius=30 nv2-noise-floor-offset=default nv2-preshared-key="" \
    nv2-qos=default nv2-queue-count=2 nv2-security=disabled \
    on-fail-retry-time=100ms periodic-calibration=default \
    periodic-calibration-interval=60 preamble-mode=both \
    proprietary-extensions=post-2.9.25 radio-name=000C42889BC1 \
    rate-selection=advanced rate-set=default scan-list=default \
    security-profile=default ssid=m01 station-bridge-clone-mac=\
    00:00:00:00:00:00 supported-rates-a/g=\
    6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,54Mbps tdma-period-size=1 \
    tx-power=10 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 wireless-protocol=nv2 wmm-support=\
    disabled
/interface wireless manual-tx-power-table
set wlan1 comment=m01 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:17,54Mbp\
    s: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,HT4\
    0-6:17,HT40-7:17"
/interface wireless nstreme
set wlan1 comment=m01 disable-csma=no enable-nstreme=yes enable-polling=yes \
    framer-limit=4000 framer-policy=best-fit
/interface wireless align
set active-mode=yes audio-max=-20 audio-min=-100 audio-monitor=\
    00:00:00:00:00:00 filter-mac=00:00:00:00:00:00 frame-size=300 \
    frames-per-second=25 receive-all=no ssid-all=no
/interface wireless sniffer
set channel-time=200ms file-limit=10 file-name="" memory-limit=10 \
    multiple-channels=no only-headers=no receive-errors=no streaming-enabled=\
    no streaming-max-rate=0 streaming-server=0.0.0.0
/interface wireless snooper
set channel-time=200ms multiple-channels=yes receive-errors=no

The problem is that when all the connections set up in it’s setting, it works beautifully, even at the end we can measure up to 50Mb approx at 20 TCP connections. In about three hours after setting somewhere something goes wrong and the speed does not go to 9MB TCP. It will help to reset all RB in PtP connections. This watch from version 5.21. 5.20 still worked well.
So the only way to maintain decent speed approx 30Mb is that all connections to switch to full 802.11a + Nstreme. I turn off 2x2 MIMO and 20 +20 MHz channel.
I had version 5.23, then I upgraded everything to 5.24 in the domain it would get better, but it beats just as bad. Our clients are complaining that they have a low speed to the internet. More than 10Mb them do not go, which is a shame when we have 2x2 MIMO antenna.

4

is it possible to get remote access to that setup so we could debug that and test how it works?
What is your network diagram?
From which board to which board you are testing the speed?
You have upgraded all the wireless boards to v5.24?

5

Approach theoretically you can give, VPN.
I measure the speed always test site speedtest.net speed, speed tests on the router OS always show a good result in the UDP approx 90Mb. Unfortunately, users do not care about speed UDP but TCP. TCP speed when I test the routeruos, so each what each jump at the lower rate of TCP.
My topology is:

X86–>wire 100Mb–>X86alix–>wifi 300Mb–>X86alix–>wire 100Mb–>RB411AH–>wifi 150Mb–>RB411AH–>wire 100Mb–>RB600–>wire 100Mb–>Groove–>wifi 150Mb–>Groove–>wire 100Mb–>RB433–>wire 100Mb–>SXT–>wifi 130Mb–>SXT–>wire 100Mb–>RB600–>wire 100Mb–>SXT–>wifi 130Mb–>SXT–>wire 100Mb–>RB433–>wire 100Mb–>my PC where I measure the speed meter on the Web

It is 5 wireless hops

Currently I have to upload all version 5.20. After recording this version speed TCP fired again at 50Mb. However, after about an hour rate fell again on some 20Mb …

6

dude u have 14 boards in a row never seen something like this- don’t know the purpose of this network but for enthusiast like u its good jab (my max is 3 hops 4 boards 80-100mbit TCP link is >50km)
5 hops 50mbits TCP with this setup is fine
when u say “X86alix–>wifi 300Mb–>X86alix” 300mbit is just max data rate that your radio card can handle
in wireless->registration u can see actual data rate
I suggest u to make btest from hop to hop, from “my pc” to all boards
find the part/link with the smallest throughput.


So surprised that I m, how far things can go if u could simplify ur network -cutting some hops like adding some p2p links from “x86”-(if this is main server) to some location that would be best for u.