Dear Alexander,

I am playing with the meas_web utility, and I finally have the missing informations for the README to make the installation process more complete, will sending a new copy for you soon.

Altough I experienced some problems:

1. I noticed that the "Type" and "Channel" parameters are not shown on the web interface, but if I run "show lchan" in the BSC console, I got the correct results for both parameters. I checked the temporary files which stores the meas_feed data, and it seems these data parts are not even there, and this is the reason the web interface is not displaying them.

2. Is there a way to set a time after the inactive old subscribers are deleted from the web interface? On my end the subscribers are just keep coming (a lot of rejected LOC updates) and when they reach the "maximum item number" count the web interface just crashes. Would be lovely to have a timeout value next to the "max item number" to set the amount of time of which the inactive subscribers would disappear from the web interface. And the web interface should not crash even if there is more transactions than the maximum item number :-)

Regards, Csaba

----- Eredeti üzenet ----- Feladó: "Sipos Csaba" sipos.csaba@kvk.uni-obuda.hu Címzett: "Alexander Chemeris" alexander.chemeris@gmail.com Másolatot kap: "OpenBSC Mailing List" openbsc@lists.osmocom.org Elküldött üzenetek: Hétfő, 2015. Október 26. 22:51:04 Tárgy: Re: Meas_web and meas_json

Dear Alexander,

Do you mind contributing to the documentation?

I don't mind at all :-) In fact I have some points which was a littlebit to brief and we might want to put some more details. For example the fact that the meas_json utility is not part of the master and where can it be found :-) What would be nice is to make it work with the PCU to get and display the GPRS/EDGE meas data too. Will put up some wiki (or at least further detail the readme) and send it to you when I have the time, but first I want to finish the B200/B210 (and potentionally UmTRX) wiki page which you can find here:

http://openbsc.osmocom.org/trac/wiki/Ettus_USRP_B2xx_family

Its not finished yet, but most of the nasty stuff is up and it works, but here and there some more details will be needed for newbies.

If you, or anyone else find any problems, have some questions or suggestions, please tell me so I can correct it :-)

Regards, Csaba

----- Eredeti üzenet ----- Feladó: "Alexander Chemeris" alexander.chemeris@gmail.com Címzett: "Sipos Csaba" sipos.csaba@kvk.uni-obuda.hu Másolatot kap: "OpenBSC Mailing List" openbsc@lists.osmocom.org Elküldött üzenetek: Hétfő, 2015. Október 26. 22:15:30 Tárgy: Re: Meas_web and meas_json

Hi Sipos,

On Mon, Oct 26, 2015 at 11:45 PM, Sipos Csaba sipos.csaba@kvk.uni-obuda.hu wrote:

Just wanted to thank you for the web version of meas_vis utility, and wanted to confirm that it works very well with Nokia Site family (E1 based) and the USRP B200 too :-)

Glad someone found it useful and was even able to get it working. :)

Do you mind contributing to the documentation? It would be great to have a brief page about it at the wiki and some more details for the installation instructions, but we never got to write it :(

It would make life easier if the meas_json utility would make it to the master branch:

http://cgit.osmocom.org/openbsc/log/?h=achemeris/meas_json

Is there a reason it is not being merged?

I guess the primary reason is that I've never submitted it. I still plan on doing that, just need to find some time to do that.

Hi Alexander,

You just need to wait a little while for the Readme fix :-)

Thx for the patch, tomorrow will recompile and see if it fixes it (probably will).

The crash happens in Firefox on Ubuntu 64bit. Will try Chrome to test it.

For you to know, I just finished putting OpenBSC with two Nokia 2G site family basestations to work as a lab exercise at our University :-)

And meas_feed is important for visualizing what happens in various signal conditions, besides spectrum and vector signal analysis ofcorse :-)

Regards, Csaba

----- Eredeti üzenet ----- Feladó: "Alexander Chemeris" alexander.chemeris@gmail.com Címzett: "Sipos Csaba" sipos.csaba@kvk.uni-obuda.hu Másolatot kap: "OpenBSC Mailing List" openbsc@lists.osmocom.org Elküldött üzenetek: Kedd, 2015. November 24. 2:09:20 Tárgy: Re: Meas_web and meas_json

Hi Csaba,

On Wed, Nov 4, 2015 at 12:18 PM, Sipos Csaba sipos.csaba@kvk.uni-obuda.hu wrote:

I am playing with the meas_web utility, and I finally have the missing informations for the README to make the installation process more complete, will sending a new copy for you soon.

Looking forward to it!

1. I noticed that the "Type" and "Channel" parameters are not shown on the web interface, but if I run "show lchan" in the BSC console, I got the correct results for both parameters. I checked the temporary files which stores the meas_feed data, and it seems these data parts are not even there, and this is the reason the web interface is not displaying them.

This information has been added in the v1 version of the meas_feed stream. It should be available in the master after this commit: 08c508f84a8d088f8454d0f21f83ecc22e30d72d msc: Add channel information to the meas_feed, bump version to v1.

2. Is there a way to set a time after the inactive old subscribers are deleted from the web interface? On my end the subscribers are just keep coming (a lot of rejected LOC updates) and when they reach the "maximum item number" count the web interface just crashes. Would be lovely to have a timeout value next to the "max item number" to set the amount of time of which the inactive subscribers would disappear from the web interface. And the web interface should not crash even if there is more transactions than the maximum item number :-)

Crash is clearly a bug here. I've been testing with Chrome on Ubuntu x64 and have never seen it crashing. Which browser / OS do you use? Do you think you could spot the reason for the crash?

Dear Alexander,

I just hope it doesn't get lost :)

Trust me it wont :-) One of the reasons I am creating these and other Wiki pages besides helping others is so I can remeber to the tricks, dependencies or other vital informations I learned and probably will forget :-)

May be your students could write some more visualization tools for OpenBSC? There is a lot to see in there.

Just wanted to say the same thing.

My personal opinion is that the biggest miss of electrical engineering education (where telecommunication is "wired" to) is that it does not focus enough on actual coding. This is a problem for myself too: I am not a big (or even small) coder, and because of that I can't help myself or others as much as I want to.

So I cannot promise I can help a lot, but I am trying :-)

Regards, Csaba

----- Eredeti üzenet ----- Feladó: "Alexander Chemeris" alexander.chemeris@gmail.com Címzett: "Sipos Csaba" sipos.csaba@kvk.uni-obuda.hu Másolatot kap: "OpenBSC Mailing List" openbsc@lists.osmocom.org Elküldött üzenetek: Szerda, 2015. November 25. 21:12:37 Tárgy: Re: Meas_web and meas_json

Hi Csaba,

On Wed, Nov 25, 2015 at 9:37 PM, Sipos Csaba sipos.csaba@kvk.uni-obuda.hu wrote:

You just need to wait a little while for the Readme fix :-)

I just hope it doesn't get lost :)

Thx for the patch, tomorrow will recompile and see if it fixes it (probably will).

The crash happens in Firefox on Ubuntu 64bit. Will try Chrome to test it.

I tried it under FF on Ubuntu 64bit and it doesn't crash here. Could you provide some backtrace for the crash?

For you to know, I just finished putting OpenBSC with two Nokia 2G site family basestations to work as a lab exercise at our University :-)

And meas_feed is important for visualizing what happens in various signal conditions, besides spectrum and vector signal analysis ofcorse :-)

Good visualization is always helpful for learning. May be your students could write some more visualization tools for OpenBSC? There is a lot to see in there.