16 Mar
2013
16 Mar
'13
12:05 p.m.
Hi Craig.
Yeah, it seem really "War and Peace" by Leo
Tolstoy<http://en.wikipedia.org/wiki/War_and_Peace>
:)
Please, let us know how UmTRX will work via USB to Gigabit Ethernet Adapter.
Best regards,
Andrey Sviyazov.
2013/3/16 Craig Reading <craig.reading1(a)gmail.com>
All,
Thanks for you help I have sort of resolved this issue:
UmTRX now hanging off TP-Link TL-SG1005D Gigabit switch and Shuttle
XS35-703 V2 running OpenBTS hanging off Netgear FS605 10/100Mbps switch.
Root cause: JMicron JMC250 connecting to a Gigabit switch and the link
partner enabled the IEEE 802.3az Energy Efficient Ethernet feature
War and peace can be found here:
http://genesysguru.com/blog/blog/2013/03/16/umtrx-networking-issues/
Regards
Craig
On 16 March 2013 12:33, Alexander Chemeris <alexander.chemeris(a)gmail.com>wrote;wrote:
We temporarily solved issues with this JMC chip
by putting a switch
between it and UmTRX, but not all models of switches worked and even
after that stability was not perfect.
Looking forward to know more about your experience.
On Sat, Mar 16, 2013 at 1:39 AM, Craig Reading <craig.reading1(a)gmail.com>
wrote:
--
Regards,
Alexander Chemeris.
CEO, Fairwaves LLC / ООО УмРадио
http://fairwaves.ru
Yes - shuttle with JMicron JMC250 (off top of my
head). Depends on chip
revision - complete pain!
I'll post my experiences - basically no joy on Pre revision 4 chips.
Regards
Craig
On 15 Mar 2013, at 21:24, Alexander Chemeris <
alexander.chemeris(a)gmail.com>
wrote:
Craig,
Which NIC is that? We had the same experience (no Gbit connection) on
Shuttle computers. I don't have this information near my hands, but IIRC
they had JMicron NICs. We never had issues with Intel motherboards.
Please excuse typos. Written with a touchscreen keyboard.
--
Regards,
Alexander Chemeris
CEO/Founder Fairwaves LLC
http://fairwaves.ru
On Mar 15, 2013 11:26 PM, "Craig Reading" <craig.reading1(a)gmail.com>
wrote:
>
> Hi Alexander
>
> I'll email the wireshark trace to you shortly. Yes I have been playing
> with network setup but can't remember the configuration when
successful!
>
> The openBTS server has a 1Gbit NIC but can't get it to negotiate
anything
> other than 100Mbit even after updating
drivers and much other
'playing' with
> cables hubs and switches!
>
> Mr Amazon is bringing some new network components tomorrow which should
> help further my investigations.
>
> This might well be one of these weird network issues you have seen
that we
> might get to the bottom off.
>
> Regards
> Craig
>
> On 15 Mar 2013, at 19:04, Alexander Chemeris
> <alexander.chemeris(a)gmail.com> wrote:
>
> Craig,
>
> Could you please send a Wireshark capture of the start attempt? Send
it to
> me directly if it's more then 100k.
>
> This looks very much like a networking issue. Have you changed your
> network setup since it was working? May be connected it through a
different
> switch? We found that some models of switches
does not work well and
> introduce weird issues.
>
> Is your network card 100Mbit or 1Gbit?
>
> If it's an UmTRX issue indeed, we'll replace it. Our beta testers is
our
> most precious asset.
>
> Please excuse typos. Written with a touchscreen keyboard.
>
> --
> Regards,
> Alexander Chemeris
> CEO/Founder Fairwaves LLC
> http://fairwaves.ru
>
> On Mar 15, 2013 10:07 PM, "Craig Reading" <craig.reading1(a)gmail.com>
> wrote:
>>
>> Hi All,
>>
>> After my initial success early in the week things seems to have gone
pear
>> shaped!
>>
>> I cannot get OpenBTS to start reliably as per traces below. After a
power
>> cycle of the UmTRX I can normally get
OpenBTS to start for a few
seconds
>> before the transceiver terminates again.
./transceiver starts and
runs on
>> its own OK but there is a lot less
traffic in a wireshark trace
compared to
>> being started from OpenBTS.
>>
>> When the transceiver starts from OpenBTS a Wireshark trace shows a
lot of
>> UDP packets.
>>
>> Approx 460 x 36 byte UDP packets for the first 0.5 seconds
>> Then some variable length UDP packets all ACKed back with 36 bytes
>> After 0.8 from startup the UmTRX sends a 28 byte message:
>>
>> 14d0000700000005000000140000000000a6d5180000000000100100
>>
>> After approx 1.0s from startup I then only get a few packets back from
>> UmTRX
>> After 5s I get nothing back from UmTRX
>> After 6s I get an ICMP Port Unreachable
>>
>> If I had more time I would look into the transceiver source code to
>> figure out where things are stopping.
>>
>> I suspect this might be a networking issue and have tried changing
some
>> Linux kernel buffer settings without
success. I have also reset my
OpenBTS
>> database just in case I had an option in
there causing this. I'll
carry on
>> checking out the network side of things
but I am starting so suspect
there
>> might be an issue with the UmTRX.
>>
>> Help!
>>
>> Regards
>> Craig
>>
>> >> Traces
>>
>> ALERT 46937531359488 TRXManager.cpp:408:powerOn: POWERON failed with
>> status -1
>> transceiver: no process killed
>> linux; GNU C++ version 4.1.2 20080704 (Red Hat 4.1.2-52);
Boost_104100;
>> UHD_003.
>> 004.000-93a49d0
>>
>> terminate called after throwing an instance of 'uhd::runtime_error'
>> what(): RuntimeError: no control response
>> EMERG 1101519168 OpenBTS.cpp:134:startTransceiver: Transceiver quit
with
>> status
>> 6. Exiting.
>>
>> or:
>>
>> ALERT 47613775102208 TRXManager.cpp:408:powerOn: POWERON failed with
>> status -1
>> transceiver: no process killed
>> linux; GNU C++ version 4.1.2 20080704 (Red Hat 4.1.2-52);
Boost_104100;
>> UHD_003.
>> 004.000-93a49d0
>>
>> ALERT 47832442212256 UHDDevice.cpp:469:open: UHD make failed, device
>> type=umtrx,
>> addr=192.168.1.10,name=UmTRX,serial=13
>> ALERT 47832442212256 runTransceiver.cpp:95:main: Transceiver
exiting...
>>
>> EMERG 1104513344 OpenBTS.cpp:134:startTransceiver: Transceiver quit
with
>
status
> 256. Exiting.
>