4 Dec
2020
4 Dec
'20
8:10 a.m.
Hi Ilario,
thanks for your input.
Had not really time the last days - but checked a few speeds.
The Internet iperf Servers are not really helpful (most time no connection
- but I could check internally.
I got speeds between 30 and 90 MBit in downstream and 40 to 120 MbBits in
Upstream.
That's strange, because in downstream is more bandwidth needed (I can
handle 250MBits) and less in Upstream (which is in my case 45MBits).
Just checked again:
Meshnode1 ···Gateway (ex6150v2) --- lokal Server -> down 50MBits (Bestcase
60, worst 12!), upload 110 (120best 70 worst)
The connection between gateway and server got 950M both sides.
Meshnode2 (connection signal lower thanMeshniode1) ···Gateway (ex6150v2)
--- lokal Server -> down 20-40MBits , upload 70-90MBits
Sometimes the downstream goes down to a few 100KBits - not on UpStream
there is 20M the lowest...
Very strange...
Am Fr., 27. Nov. 2020 um 14:36 Uhr schrieb Ilario Gelmetti <
iochesonome(a)gmail.com>gt;:
Hey Andy!
Can you test using just cabled connections?
So that we make sure that the wifi is or is not the issue.
I used iperf3 towards an internet server (a local server would have been
much more reliable and not limited by the internet service provider):
"iperf3 -c an_iperf3_server" for upload and
"iperf3 -c an_iperf3_server -R" for download
where an_iperf3_server can be found on
https://iperf.fr/iperf-servers.php
Here are some tests I just quicly made (cannot go too deep today,
sorry), --- is a cabled connection (through a gigabit ethernet usb
adapter on my laptop) ··· is a wireless connection.
laptop---modem
download 121 mbps; upload 106 mbps
laptop···modem
download 80 mbps; upload 95 mbps
laptop---(LAN port)TP-Link WDR3600(WAN port)---modem
download 119 mbps; upload 105 mbps
laptop···(APname2(+AP+mesh))TP-Link WDR3600(WAN port)---modem
download 47 mbps; upload 61 mbps
laptop···(APname2 only)TP-Link WDR3600(WAN port)---modem
download 43 mbps; upload 50 mbps
laptop···(APname5(+AP+mesh))TP-Link WDR3600(WAN port)---modem
download 119 mbps; upload 83 mbps
laptop···(APname5 only)TP-Link WDR3600(WAN port)---modem
download 94 mbps; upload 84 mbps
laptop---(LAN port)YouHua
WR1200JS(mesh2and5(+ap2and5+apname2and5))···(mesh2and5(+ap2and5+apname2and5))TP-Link
WDR3600(WAN port)---modem
download 50 mbps; upload 59 mbps (the two routers have the default
configuration and are one next to the other)
laptop---(LAN port)YouHua WR1200JS(mesh5 only)···(mesh5 only)TP-Link
WDR3600(WAN port)---modem
download 55 mbps; upload 60 mbps
laptop---(LAN port)YouHua WR1200JS(mesh2 only)···(mesh2 only)TP-Link
WDR3600(WAN port)---modem
download 44 mbps; upload 18 mbps
laptop---(LAN port)YouHua WR1200JS(WAN port)---modem
download 117 mbps; upload 104 mbps
Ciao!
Ilario
On 10/28/20 3:44 PM, Andy Schopf wrote:
between
Hi SAn and all,
I did some testing and had a few things to learn on that way.
In my case the 5 GHz mesh is only working with the Channel 36 and 48 (as
I also tried higher channels like 100,112,149,157,169,173 but there I
got any connection).
Using the 2,4 GHz for AP and 5 GHz for mesh only ended in very poor
performance with 1-2 MBits in up and download.
Only with the AP on 5 GHz im getting up to 40 MBits in up and download.
On the Mesh points there was no high cpu usage ( I think it was 40% in
max.).
Are there any further ideas or experiences?
I also have very often the problem on my Mesh Node in direction to the
Internet (the ex6150v2) that I don't get an valid IP-address...
I had to configure the ETH0 Port manually (in standard it is used as LAN
Port):
in lime-node:
config net 'port0'
option linux_name 'eth0'
list protocols 'wan'
BTW @SAn Do you have an instruction for the backporting thing you
mentioned in the other thread?
Thanks,
Andy
Am Di., 27. Okt. 2020 um 16:12 Uhr schrieb SAn
<spiccinini(a)altermundi.net <mailto:spiccinini@altermundi.net>>:
Hi Andy!
On October 27, 2020 4:51:09 AM GMT-03:00, Andy Schopf
<andymcschopf(a)gmail.com <mailto:andymcschopf@gmail.com>> wrote:
>Hi Ilario,
>
>my actual Configuration is: OpenWrt 190704 (on ex6150v2) and
snapshot
>(ex6120/30) with libremesh 20.09
>lime community with:
>[...]
>config lime 'wifi'
> option htmode_5ghz 'VHT80'
> option htmode_2ghz 'HT40'
> option distance '100'
>[...]
>and lime-node with:
>[...]
>config lime 'wifi'
>
>config wifi 'radio0' # 5GHz
> list modes 'ap'
> list modes 'ieee80211s'
>
>config wifi 'radio1'
> list modes 'ap'
> list modes 'apname'
>[...]
>I use es6120/30 as Mesh-Nodes -> No use of the LANPort.
>And an ex6150v2 as Connection to the internet (1GBit Lan-Port).
>
>When I check the Lime-App (-> Metriken) I got an speed of max
60MBits.
in
luci I see connection Speeds between 150 - 866 MBits RX/TX speed.
This speed is the bitrate, so, how quick each bit is put into the
wireless medium.
But it does not take into account how crowded the medium is, only
one radio can use the medium at a time. So the radio may be able to
transfer the packet very quickly but it may have to wait some time
between packets because others are using the medium (other nodes of
the same network or other networks in the neighborhood).
There are counters available in some radio chips that report the
airtime usage (radio busy, rx busy, tx busy, etc). For the ath9k
driver they are available in /sys/ (do some find and greping there I
don't recall exactly).
Also you can do some scanning to check if there are other access
points using these channels. Take in consideration the channel width.
Also, depending on the hardware it may be the case that the CPU
can't send much faster due to how the driver is implemented. Check
with top of you see high usage.
Hope this helps,
SAn
>When I use an Internet connection Speedcheck modei got download >1
>(yes 1 - very strange) to 40 MBit and upload 15 - 40 MBit.
>
>As you mentioned I will try to use the 5Ghz part only as mesh - and
>report
>back ;-)
>
>For your understanding: My Intention was to use AP on both - faster
>Connection for 5Ghz able devices (IPad, iPhone) and 2 GHz for the
older
>ones... 2Ghz also as apname.
>
>In my personal opinion the whole speed thing could be a showstopper
>(for
>eg. lime)... but if solved the solution for many cheap meshes!
>
>Regards,
>Andy
>
>
>Am Mo., 26. Okt. 2020 um 22:17 Uhr schrieb Ilario Gelmetti <
>iochesonome(a)gmail.com <mailto:iochesonome@gmail.com>>:
>
>> On 10/26/20 3:04 PM, Andy Schopf wrote:
>> > I have a test-network running with a bunch of ac/an Adapters.
>> >
>> > I got connections up to 866MBits between the adapters (5Ghz
mesh)
>but
>> > even with this fast connection I only got 40Mbit up/down Speed
in
>> > direction to the internet.
>> >
>> > Only on the one Adapter connected directly to the Internet i got
>the
>> > full speed (250/40).
>> > I also played around with distance parameters with no measurable
>impact.
>> > Are there other possibilities to speed up the mesh?
>>
>> That's a superinteresting topic, but I never tested it.
>>
>> Which device is the AC one? Are them the "ex6120 and ex6130
Extender"
>> you mentioned in the other email?
>> I have no idea of how well the 802.11s mesh works with MediaTek.
The
>> only thing I know about MediaTek is
that you could have problem
when
>> meshing over ethernet cable [1].
>>
>> Maybe try changing the htmode (the wifi channel width [2]) to HT40
>for
>> 2.4 GHz and VHT40/VHT80 (which should work only for AC routers)
for
5
>GHz.
>> This could as well degrade performances rather than improve them
[2]
>but
>> it's worth a try.
>> Due to a bug, this does not work when using LibreMesh based on
>OpenWrt
>> 18.06 [3] but this should be ok for you on snapshot.
>>
>> In /etc/config/lime-node
>>
>> config lime wifi
>> option htmode_2ghz 'HT40'
>> option htmode_5ghz 'VHT40'
>>
>> and then lime-config and reboot.
>>
>> Another thing I always wondered but I never actually tested is how
>much
>> does impact to have one or two AP interfaces [4] (as compared to
>having
>> just 802.11s mesh), do you think you can test it?
>> For doing this, simply define the modes list with just the mesh.
>>
>> In /etc/config/lime-node
>>
>> config lime wifi
>> list modes 'ieee80211s'
>>
>> and then lime-config and reboot.
>>
>> Please let us know!
>> Thanks for experimenting <3
>> Ciao,
>> Ilario
>>
>> [1]:
>>
>
https://forum.openwrt.org/t/mediatek-and-vlan-802-1ad-on-ethernet/42346
<
https://forum.openwrt.org/t/mediatek-and-vlan-802-1ad-on-ethernet/42346>
>> [2]:
>>
>>
>
https://openwrt.org/docs/guide-user/network/wifi/basic#htmodethe_wi-fi_chan…
<
https://openwrt.org/docs/guide-user/network/wifi/basic#htmodethe_wi-fi_chan…
<https://github.com/libremesh/lime-packages/issues/647>
<https://github.com/libremesh/lime-packages/issues/109>
--
Ilario
iochesonome(a)gmail.com
ilario(a)sindominio.net
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> --
> Ilario
> iochesonome(a)gmail.com <mailto:iochesonome@gmail.com>
> ilario(a)sindominio.net <mailto:ilario@sindominio.net>
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