30 Jun
2017
30 Jun
'17
9:40 p.m.
Hi guys,
We are here with George from Sarantaporo testing this UniFi AC Mesh
devices.
We successfuly flashed two of them that are meshing with each other and
with other devices through 2.4ghz and 5ghz with AC.
The problem is that the throughput is not very good.
Doing a netperf, we get (on the AC link):
root@LiMe-3c5540:~# netperf -H fe80::f29f:c2ff:fe3e:5435%wlan0-mesh
netperf -cCD1 -t tcp_maerts -l30MIGRATED TCP STREAM TEST from ::0 (::)
port 0 AF_INET6 to fe80::f29f:c2ff:fe3e:5435%wlan0-mesh () port 0
AF_INET6 : demoRecv Send Send Socket
Socket Message Elapsed Size Size Size Time
Throughput bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.06 55.41
and on the 802.11g link:
root@LiMe-3c5540:~# netperf -H fe80::f29f:c2ff:fe3d:5435%wlan1-mesh
netperf -cCD1 -t tcp_maerts -l30
MIGRATED TCP STREAM TEST from ::0 (::) port 0 AF_INET6 to
fe80::f29f:c2ff:fe3d:5435%wlan1-mesh () port 0 AF_INET6 : demo
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 11.88 1.19
So... pretty crappy, isn't it? (the devices are 30cm away from each
other, and no wireless traffic is around but those.
Also, another thing called my atention.
These are the luci wireless outputs for both of the devices.
Isn't it strange that both of them have high reception speed and super
slow transmission speed with each other?
We have already tried changing the channels.
Also tried to avoid 11s/adhoc and connect as client/master.
The outcome is the same:
root@LiMe-3c5540:~# netperf -H fe80::f29f:c2ff:fe3c:5435%wlan0-1
netperf -cCD1 -t tcp_maerts -l30MIGRATED TCP STREAM TEST from ::0 (::)
port 0 AF_INET6 to fe80::f29f:c2ff:fe3c:5435%wlan0-1 () port 0 AF_INET6
: demoRecv Send Send Socket
Socket Message Elapsed Size Size Size Time
Throughput bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.01 62.59
I haven't tried all this configs yet: https://wiki.openwrt.org/doc/uci/
wireless#ac_capabilities
But maybe there is some knowlege in the group that can help on this.
What do you think about this?
Regards,
1 Jul
1 Jul
7:49 a.m.
the radios can behave weirdly if they are too close together.
I would repeat the test with some more distance (you can also lower the
tx power)
anyway, I've never used these devices.
On 06/30/2017 06:40 PM, Nicolas Pace wrote:
Hi guys, We are here with George from Sarantaporo
testing this UniFi
AC Mesh devices. We successfuly flashed two of them that are meshing
with each other and with other devices through 2.4ghz and 5ghz with
AC. The problem is that the throughput is not very good. Doing a
netperf, we get (on the AC link):
root@LiMe-3c5540 <mailto:root@LiMe-3c5540>:~# netperf -H
fe80::f29f:c2ff:fe3e:5435%wlan0-mesh netperf -cCD1 -t tcp_maerts
-l30
MIGRATED TCP STREAM TEST from ::0 (::) port 0 AF_INET6 to
fe80::f29f:c2ff:fe3e:5435%wlan0-mesh () port 0 AF_INET6 : demo
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.06 55.41
and on the 802.11g link:
root@LiMe-3c5540 <mailto:root@LiMe-3c5540>:~# netperf -H
fe80::f29f:c2ff:fe3d:5435%wlan1-mesh netperf -cCD1 -t tcp_maerts
-l30 MIGRATED TCP STREAM TEST from ::0 (::) port 0 AF_INET6 to
fe80::f29f:c2ff:fe3d:5435%wlan1-mesh () port 0 AF_INET6 : demo Recv
Send Send Socket Socket Message Elapsed Size Size Size
Time Throughput bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 11.88 1.19
So... pretty crappy, isn't it? (the devices are 30cm away from each
other, and no wireless traffic is around but those.
Also, another thing called my atention.
These are the luci wireless outputs for both of the devices. Isn't it
strange that both of them have high reception speed and super slow
transmission speed with each other?
We have already tried changing the channels. Also tried to avoid
11s/adhoc and connect as client/master. The outcome is the same:
root@LiMe-3c5540 <mailto:root@LiMe-3c5540>:~# netperf -H
fe80::f29f:c2ff:fe3c:5435%wlan0-1 netperf -cCD1 -t tcp_maerts -l30
MIGRATED TCP STREAM TEST from ::0 (::) port 0 AF_INET6 to
fe80::f29f:c2ff:fe3c:5435%wlan0-1 () port 0 AF_INET6 : demo
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.01 62.59
I haven't tried all this configs yet:
https://wiki.openwrt.org/doc/uci/wireless#ac_capabilities But maybe
there is some knowlege in the group that can help on this.
What do you think about this?
Regards,
_______________________________________________ lime-dev mailing
list lime-dev(a)lists.libremesh.org
https://lists.libremesh.org/mailman/listinfo/lime-dev
10:28 a.m.
On Friday, 30 June 2017 23:40:44 CEST Nicolas Pace wrote:
Hi guys,
We are here with George from Sarantaporo testing this UniFi AC Mesh
devices.
We successfuly flashed two of them that are meshing with each other and
with other devices through 2.4ghz and 5ghz with AC.
The problem is that the throughput is not very good.
Doing a netperf, we get (on the AC link):
root@LiMe-3c5540:~# netperf -H fe80::f29f:c2ff:fe3e:5435%wlan0-mesh
netperf -cCD1 -t tcp_maerts -l30MIGRATED TCP STREAM TEST from ::0 (::)
port 0 AF_INET6 to fe80::f29f:c2ff:fe3e:5435%wlan0-mesh () port 0
AF_INET6 : demoRecv Send Send Socket
Socket Message Elapsed Size Size Size Time
Throughput bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.06 55.41
and on the 802.11g link:
root@LiMe-3c5540:~# netperf -H fe80::f29f:c2ff:fe3d:5435%wlan1-mesh
netperf -cCD1 -t tcp_maerts -l30
MIGRATED TCP STREAM TEST from ::0 (::) port 0 AF_INET6 to
fe80::f29f:c2ff:fe3d:5435%wlan1-mesh () port 0 AF_INET6 : demo
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 11.88 1.19
So... pretty crappy, isn't it? (the devices are 30cm away from each
other, and no wireless traffic is around but those.
Also, another thing called my atention.
These are the luci wireless outputs for both of the devices.
Isn't it strange that both of them have high reception speed and super
slow transmission speed with each other?
In my experience TX/RX rates are unrealiable if there is no traffic in that
direction, so ensure you are sending a bunch of traffic while looking at TX and
receiving a lot if looking at RX
Cheers
We have already tried changing the channels.
Also tried to avoid 11s/adhoc and connect as client/master.
The outcome is the same:
root@LiMe-3c5540:~# netperf -H fe80::f29f:c2ff:fe3c:5435%wlan0-1
netperf -cCD1 -t tcp_maerts -l30MIGRATED TCP STREAM TEST from ::0 (::)
port 0 AF_INET6 to fe80::f29f:c2ff:fe3c:5435%wlan0-1 () port 0 AF_INET6
: demoRecv Send Send Socket
Socket Message Elapsed Size Size Size Time
Throughput bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.01 62.59
I haven't tried all this configs yet: https://wiki.openwrt.org/doc/uci/
wireless#ac_capabilities
But maybe there is some knowlege in the group that can help on this.
What do you think about this?
Regards,
2490
days inactive
2491
days old
2 comments
3 participants
participants (3)
-
Gio -
Nicolas Pace -
Nicolás Echániz