[Commotion-dev] What's the word on DR1.1?

Preston Rhea prestonrhea at opentechinstitute.org
Wed Jun 5 15:19:44 UTC 2013


Moving this to commotion-dev (original recipients on BCC).

My setup was:

(BKFiber point-to-point Nano LoCo 5GHz gateway ) >>> [[ETHERNET
SWITCH]] > 2 separate Commotion nodes: // (1 PicoStation w/ DR1.1,
powered-on when plugged into switch then set to DCHP Client only) //
(1 NanoStation M2 w/ DR1.1, powered-on when plugged into switch then
set to DHCP Client only). The two Commotion nodes were meshed at about
ETX 7.5.

When both nodes were powered on in this way, I got erratic times of
very high latency (as seen in the traceroutes below) mixed with times
of normal operation, while associated with the Pico. After I saw
Andy's report of the same problems, I unplugged the Nano and then
Internet access worked great on the Pico.


On Wed, Jun 5, 2013 at 11:09 AM, Dan Staples
<danstaples at opentechinstitute.org> wrote:
> Thanks for reporting these issues, all. I am fully available today to
> investigate these issues.
>
> I just tried putting up a DR1 node, and hitting it with about 15
> different website loads simultaneously, from two different computers.
> All the tabs were redirected to the captive portal within a second, and
> the CPU usage went to about 85%-95% for just about a second or two, then
> went back down to idle levels. Absolutely no lock-up at all. Could you
> provide more information on the architecture of the network, and any
> other relevant info? How many gateways were there? About how many people
> were connecting to each of the nodes? Were they all trying to access the
> admin interface, or go to outside websites? If the latter, were they all
> captive portaled?
>
> I have two picos with me now, and will look into the latency issue as well.
>
> On 06/04/2013 02:07 PM, Preston Rhea wrote:
>> I unplugged the rooftop router from power, so now there's only the
>> indoor AP (RHI HQ). Seems to be working fine now.
>>
>> FWIW, the two nodes were connected by a switch, which was also
>> connected to the BKFiber gateway on the roof.
>>
>> On Tue, Jun 4, 2013 at 2:03 PM, Preston Rhea
>> <prestonrhea at opentechinstitute.org> wrote:
>>> Just finished updating RHI WiFi 3 (roof of RHI) and the internal AP
>>> with DR1.1. Worked fine at first, but for the last 10 minutes, I've
>>> definitely been noticing (2). Traceroutes:
>>>
>>> 41 packets transmitted, 34 received, 17% packet loss, time 42111ms
>>> rtt min/avg/max/mdev = 411.582/4302.645/11538.744/3289.556 ms, pipe 10
>>> preston at preston-ThinkPad-X220:~$ traceroute 8.8.8.8
>>> traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
>>>  1  RHI-HQ583780718.local (101.203.201.1)  1930.986 ms  1931.265 ms  1931.370 ms
>>>  2  192.168.2.1 (192.168.2.1)  1932.298 ms  1932.847 ms  1937.548 ms
>>>  3  192.168.12.1 (192.168.12.1)  2051.621 ms  2051.727 ms  2051.857 ms
>>>  4  66.109.17.35 (66.109.17.35)  2051.963 ms  2117.879 ms  2117.949 ms
>>>  5  4.28.73.69 (4.28.73.69)  2785.550 ms  2785.619 ms  2785.623 ms
>>>  6  4.69.155.142 (4.69.155.142)  2785.591 ms  166.634 ms  611.093 ms
>>>  7  GOOGLE-INC.edge1.NewYork1.Level3.net (4.71.172.86)  609.147 ms
>>> 656.012 ms GOOGLE-INC.edge1.NewYork1.Level3.net (4.71.172.82)  659.011
>>> ms
>>>  8  72.14.238.232 (72.14.238.232)  661.644 ms 209.85.255.68
>>> (209.85.255.68)  663.585 ms 72.14.238.232 (72.14.238.232)  661.615 ms
>>>  9  72.14.236.206 (72.14.236.206)  663.549 ms 72.14.236.208
>>> (72.14.236.208)  661.766 ms  663.459 ms
>>> 10  72.14.239.93 (72.14.239.93)  663.480 ms 209.85.249.11
>>> (209.85.249.11)  772.857 ms 72.14.239.93 (72.14.239.93)  772.861 ms
>>> 11  72.14.238.18 (72.14.238.18)  772.849 ms  772.829 ms 72.14.238.16
>>> (72.14.238.16)  772.742 ms
>>> 12  216.239.49.145 (216.239.49.145)  163.840 ms 72.14.232.21
>>> (72.14.232.21)  20.100 ms *
>>> 13  * * *
>>> 14  * * *
>>> 15  * * *
>>> 16  * * *
>>> 17  * * *
>>> 18  google-public-dns-a.google.com (8.8.8.8) 732.816 ms  732.773 ms  732.762 ms
>>> preston at preston-ThinkPad-X220:~$ traceroute 8.8.8.8
>>> traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
>>>  1  RHI-HQ583780718.local (101.203.201.1)  4103.799 ms  4861.648 ms  5457.216 ms
>>>  2  192.168.2.1 (192.168.2.1)  5457.872 ms  5458.274 ms  5458.838 ms
>>>  3  192.168.12.1 (192.168.12.1)  5469.609 ms  5470.288 ms  5471.173 ms
>>>  4  66.109.17.35 (66.109.17.35)  5471.846 ms  5472.272 ms  5473.052 ms
>>>  5  vlan1065.car4.NewYork1.Level3.net (4.28.73.69)  6685.639 ms
>>> 6685.630 ms  6685.617 ms
>>>  6  ae-3-80.edge1.NewYork1.Level3.net (4.69.155.142)  6685.603 ms
>>> 68.883 ms  30.913 ms
>>>  7  GOOGLE-INC.edge1.NewYork1.Level3.net (4.71.172.82)  31.692 ms
>>> 32.169 ms GOOGLE-INC.edge1.NewYork1.Level3.net (4.71.172.86)  34.990
>>> ms
>>>  8  209.85.255.68 (209.85.255.68)  109.264 ms 72.14.238.232
>>> (72.14.238.232)  74.341 ms  74.656 ms
>>>  9  72.14.236.206 (72.14.236.206)  78.480 ms 72.14.236.208
>>> (72.14.236.208)  78.672 ms 72.14.236.206 (72.14.236.206)  78.890 ms
>>> 10  209.85.249.11 (209.85.249.11)  79.985 ms  80.466 ms 72.14.239.93
>>> (72.14.239.93)  81.046 ms
>>> 11  72.14.238.16 (72.14.238.16)  81.554 ms  81.743 ms  81.907 ms
>>> 12  216.239.49.145 (216.239.49.145)  63.974 ms 72.14.232.21
>>> (72.14.232.21)  44.343 ms  46.145 ms
>>> 13  google-public-dns-a.google.com (8.8.8.8)  36.717 ms  36.732 ms  37.026 ms
>>> preston at preston-ThinkPad-X220:~$ traceroute 8.8.8.8
>>> traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
>>>  1  RHI-HQ583780718.local (101.203.201.1)  138.704 ms  138.680 ms  138.672 ms
>>>  2  192.168.2.1 (192.168.2.1)  138.757 ms  138.849 ms  138.950 ms
>>>  3  192.168.12.1 (192.168.12.1)  139.050 ms  139.138 ms  139.231 ms
>>>  4  66.109.17.35 (66.109.17.35)  139.303 ms  139.408 ms  139.497 ms
>>>  5  * * *
>>>  6  4.69.155.142 (4.69.155.142)  141.727 ms  20.589 ms  43.078 ms
>>>  7  GOOGLE-INC.edge1.NewYork1.Level3.net (4.71.172.82)  20.595 ms  1391.805 ms *
>>>  8  * 209.85.255.68 (209.85.255.68)  1459.420 ms 72.14.238.232
>>> (72.14.238.232)  1459.389 ms
>>>  9  72.14.236.208 (72.14.236.208)  1459.017 ms * *
>>> 10  * * *
>>> 11  * * 72.14.238.16 (72.14.238.16)  534.701 ms
>>> 12  72.14.232.21 (72.14.232.21)  615.623 ms 216.239.49.145
>>> (216.239.49.145)  535.296 ms 72.14.232.21 (72.14.232.21)  7653.385 ms
>>> 13  google-public-dns-a.google.com (8.8.8.8)  7559.047 ms  7558.923 ms
>>>  7759.846 ms
>>>
>>> On Tue, Jun 4, 2013 at 1:55 PM, Andy Gunn
>>> <andygunn at opentechinstitute.org> wrote:
>>>> We definitely ran in to some issues in the past few days while
>>>> installing, and doing test deployments on battery packs. Will, please
>>>> fill in my gaps:
>>>>
>>>> 1. The nodes cannot handle more than a _single_ http request at one
>>>> time. If more than one person tries to log on to the admin interface, or
>>>> even browse the local application portal at once, the entire node locks
>>>> up, and will usually drop all connections. Caused huge headaches while
>>>> we were trying to diagnose. Recommending completely disabling local
>>>> splash pages, and perhaps even the local application portal.
>>>>
>>>> 2. There may be some conditions (lots of connections, too many nodes in
>>>> close proximity, not sure), that cause extremely large latencies (2 to
>>>> 10 seconds) at irregular intervals. Needs to be repeated and verified.
>>>>
>>>> Other that that, I think there were a few small things, but this is just
>>>> an initial brain dump. Will can report back as well with better detail.
>>>>
>>>> Dan - I will assume that you will pass this information on to the rest
>>>> of the Commotion team.
>>>>
>>>>
>>>>
>>>> On 06/03/2013 10:54 AM, Preston Rhea wrote:
>>>>> Hey Dharamsala crew,
>>>>>
>>>>> How is it working out in the field? Plan is to start loading it in Red
>>>>> Hook tomorrow, so would be great to know!
>>>>>
>>>>> Hope all is well in the air up there,
>>>>>
>>>>> Preston
>>>>>
>>>>> --
>>>>> Preston Rhea
>>>>> Program Associate, Open Technology Institute
>>>>> New America Foundation
>>>>> +1-202-570-9770
>>>>> Twitter: @prestonrhea
>>>>>
>>>> --
>>>>
>>>> Andy Gunn, Field Engineer
>>>> Open Technology Institute, New America Foundation
>>>> andygunn at opentechinstitute.org | 202-596-3484
>>>
>>>
>>> --
>>> Preston Rhea
>>> Program Associate, Open Technology Institute
>>> New America Foundation
>>> +1-202-570-9770
>>> Twitter: @prestonrhea
>>
>>
>
> --
> Dan Staples
>
> Open Technology Institute
> https://commotionwireless.net
>



-- 
Preston Rhea
Program Associate, Open Technology Institute
New America Foundation
+1-202-570-9770
Twitter: @prestonrhea


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