[jitsi-users] Why low bandwidth, and what to do about it?


#1

I'm on a pretty fast DSL line, and speedtest looks good. My chat partner
lives in China, and her connection is much worse: About 500KB/s
downstream and around 100KB/s upstream.

When starting the Chat, we first even had a video and a voice
connection, although, of course, with bad quality, but it went worse. In
the end, we only had voice, and this in only one direction: I could hear
her, but she couldn't hear me anymore.

Opening the diagnostic window of the Jitsi chat client, I could see many
package losses upstream (more than 80%), and the upstream speed from my
computer towards the other party was shown as around 5 KB/s only. No
surprise that even voice didn't go throught. The downstream bandwidth
from her computer to mine was also not that good, always around 60-70
KBs.

Now, what I don't understand is why the data rate is so low. There was
certainly no problem with my Internet connection, as I could verify.
Even though my chat partner has rather slow Internet, the speeds we were
experiencing, were ways below what we could, in theory, have.

BTW, we both terminated other applications on our systems, to reduce the
probability that some other program is taking bandwidth.

Immediately afterwards, I had a video chat with a Japanese friend, and
it worked without problems.

Any suggestions what we can do here? Is there anything in the Jitsi
settings where I could fine-tune the connection to better use the low
bandwidth?

Ronald


#2

Hi,

I have the same problem with Morocco. :frowning:
I used Skype before I could with a conversation for more than 4 hours of
video between France and Morocco. Skype now known there are problems connecting
to the server for autentication accounts, that's a shame.
I looked for another solution and found Jitsi but it does not work very
well. I do not even talk about the video because it's very bad. Just audio
communication blocks in one direction after a few minutes of discussion.
Whenever you have to cut and call the person. It's very disappointing. Yet
Jitsi seems very promising but still too young because there are a lot of
things that do not work well.
Jonathan

···

2014-08-18 12:48 GMT+02:00 Ronald Fischer <ynnor@mm.st>:

I'm on a pretty fast DSL line, and speedtest looks good. My chat partner
lives in China, and her connection is much worse: About 500KB/s
downstream and around 100KB/s upstream.

When starting the Chat, we first even had a video and a voice
connection, although, of course, with bad quality, but it went worse. In
the end, we only had voice, and this in only one direction: I could hear
her, but she couldn't hear me anymore.

Opening the diagnostic window of the Jitsi chat client, I could see many
package losses upstream (more than 80%), and the upstream speed from my
computer towards the other party was shown as around 5 KB/s only. No
surprise that even voice didn't go throught. The downstream bandwidth
from her computer to mine was also not that good, always around 60-70
KBs.

Now, what I don't understand is why the data rate is so low. There was
certainly no problem with my Internet connection, as I could verify.
Even though my chat partner has rather slow Internet, the speeds we were
experiencing, were ways below what we could, in theory, have.

BTW, we both terminated other applications on our systems, to reduce the
probability that some other program is taking bandwidth.

Immediately afterwards, I had a video chat with a Japanese friend, and
it worked without problems.

Any suggestions what we can do here? Is there anything in the Jitsi
settings where I could fine-tune the connection to better use the low
bandwidth?

Ronald

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users@jitsi.org
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#3

Hi

i thinks its not fault of jitsi. Its all because international traffic costs a lot for internet providers, and also because international optical channels often are overloaded by p2p traffic.

···

18.08.2014, 15:34, “Jonathan BOUSSOIR” jonathan.boussoir@gmail.com:

Hi,

I have the same problem with Morocco. :frowning:
I used Skype before I could with a conversation for more than 4 hours of video between France and Morocco. Skype now known there are problems connecting to the server for autentication accounts, that’s a shame.
I looked for another solution and found Jitsi but it does not work very well. I do not even talk about the video because it’s very bad. Just audio communication blocks in one direction after a few minutes of discussion. Whenever you have to cut and call the person. It’s very disappointing. Yet Jitsi seems very promising but still too young because there are a lot of things that do not work well.

Jonathan

2014-08-18 12:48 GMT+02:00 Ronald Fischer ynnor@mm.st:

I’m on a pretty fast DSL line, and speedtest looks good. My chat partner
lives in China, and her connection is much worse: About 500KB/s
downstream and around 100KB/s upstream.

When starting the Chat, we first even had a video and a voice
connection, although, of course, with bad quality, but it went worse. In
the end, we only had voice, and this in only one direction: I could hear
her, but she couldn’t hear me anymore.

Opening the diagnostic window of the Jitsi chat client, I could see many
package losses upstream (more than 80%), and the upstream speed from my
computer towards the other party was shown as around 5 KB/s only. No
surprise that even voice didn’t go throught. The downstream bandwidth
from her computer to mine was also not that good, always around 60-70
KBs.

Now, what I don’t understand is why the data rate is so low. There was
certainly no problem with my Internet connection, as I could verify.
Even though my chat partner has rather slow Internet, the speeds we were
experiencing, were ways below what we could, in theory, have.

BTW, we both terminated other applications on our systems, to reduce the
probability that some other program is taking bandwidth.

Immediately afterwards, I had a video chat with a Japanese friend, and
it worked without problems.

Any suggestions what we can do here? Is there anything in the Jitsi
settings where I could fine-tune the connection to better use the low
bandwidth?

Ronald


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#4

Hi
Thank you for your reply but I have trouble believing it because I can spend
hours have Skype audio AND audio / video. Jitsi even with only audio: the
call hangs in one direction (the person can hear me but not me) after a few
minutes.
Jonathan

···

2014-08-18 13:38 GMT+02:00 v k <v.karm@yandex.ru>:

Hi
i thinks its not fault of jitsi. Its all because international traffic
costs a lot for internet providers, and also because international optical
channels often are overloaded by p2p traffic.

18.08.2014, 15:34, "Jonathan BOUSSOIR" <jonathan.boussoir@gmail.com>:

Hi,

I have the same problem with Morocco. :frowning:
I used Skype before I could with a conversation for more than 4 hours of
video between France and Morocco. Skype now known there are problems connecting
to the server for autentication accounts, that's a shame.
I looked for another solution and found Jitsi but it does not work very
well. I do not even talk about the video because it's very bad. Just audio
communication blocks in one direction after a few minutes of discussion.
Whenever you have to cut and call the person. It's very disappointing. Yet
Jitsi seems very promising but still too young because there are a lot of
things that do not work well.
Jonathan

2014-08-18 12:48 GMT+02:00 Ronald Fischer <ynnor@mm.st>:

I'm on a pretty fast DSL line, and speedtest looks good. My chat partner
lives in China, and her connection is much worse: About 500KB/s
downstream and around 100KB/s upstream.

When starting the Chat, we first even had a video and a voice
connection, although, of course, with bad quality, but it went worse. In
the end, we only had voice, and this in only one direction: I could hear
her, but she couldn't hear me anymore.

Opening the diagnostic window of the Jitsi chat client, I could see many
package losses upstream (more than 80%), and the upstream speed from my
computer towards the other party was shown as around 5 KB/s only. No
surprise that even voice didn't go throught. The downstream bandwidth
from her computer to mine was also not that good, always around 60-70
KBs.

Now, what I don't understand is why the data rate is so low. There was
certainly no problem with my Internet connection, as I could verify.
Even though my chat partner has rather slow Internet, the speeds we were
experiencing, were ways below what we could, in theory, have.

BTW, we both terminated other applications on our systems, to reduce the
probability that some other program is taking bandwidth.

Immediately afterwards, I had a video chat with a Japanese friend, and
it worked without problems.

Any suggestions what we can do here? Is there anything in the Jitsi
settings where I could fine-tune the connection to better use the low
bandwidth?

Ronald

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#5

I don't work on jitsi, its just my personal advice )
Internet packets may travel not optimal ways and paths. But skype has a lot of super servers acting like proxy. But jisti just connects point1 with point2 without superservers and without super wideband optical channels. Thats why we met this problem.

···

18.08.2014, 15:57, "Jonathan BOUSSOIR" <jonathan.boussoir@gmail.com>:

Hi
Thank you for your reply but I have trouble believing it because I can spend hours have Skype audio AND audio / video. Jitsi even with only audio: the call hangs in one direction (the person can hear me but not me) after a few minutes.

Jonathan

2014-08-18 13:38 GMT+02:00 v k <v.karm@yandex.ru>:

Hi
i thinks its not fault of jitsi. Its all because international traffic costs a lot for internet providers, and also because international optical channels often are overloaded by p2p traffic.

18.08.2014, 15:34, "Jonathan BOUSSOIR" <jonathan.boussoir@gmail.com>:

Hi,

I have the same problem with Morocco. :frowning:
I used Skype before I could with a conversation for more than 4 hours of video between France and Morocco. Skype now known there are problems connecting to the server for autentication accounts, that's a shame.
I looked for another solution and found Jitsi but it does not work very well. I do not even talk about the video because it's very bad. Just audio communication blocks in one direction after a few minutes of discussion. Whenever you have to cut and call the person. It's very disappointing. Yet Jitsi seems very promising but still too young because there are a lot of things� that do not work well.

Jonathan

2014-08-18 12:48 GMT+02:00 Ronald Fischer <ynnor@mm.st>:

I'm on a pretty fast DSL line, and speedtest looks good. My chat partner
lives in China, and her connection is much worse: About 500KB/s
downstream and around 100KB/s upstream.

When starting the Chat, we first even had a video and a voice
connection, although, of course, with bad quality, but it went worse. In
the end, we only had voice, and this in only one direction: I could hear
her, but she couldn't hear me anymore.

Opening the diagnostic window of the Jitsi chat client, I could see many
package losses upstream (more than 80%), and the upstream speed from my
computer towards the other party was shown as around 5 KB/s only. No
surprise that even voice didn't go throught. The downstream bandwidth
from her computer to mine was also not that good, always around 60-70
KBs.

Now, what I don't understand is why the data rate is so low. There was
certainly no problem with my Internet connection, as I could verify.
Even though my chat partner has rather slow Internet, the speeds we were
experiencing, were ways below what we could, in theory, have.

BTW, we both terminated other applications on our systems, to reduce the
probability that some other program is taking bandwidth.

Immediately afterwards, I had a video chat with a Japanese friend, and
it worked without problems.

Any suggestions what we can do here? Is there anything in the Jitsi
settings where I could fine-tune the connection to better use the low
bandwidth?

Ronald

_______________________________________________
users mailing list
users@jitsi.org
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#6

okay
Thank you for your clarification on the communication from Jitsi.
But that does not over due problem I have with Jitsi
Jonathan

···

2014-08-18 14:01 GMT+02:00 v k <v.karm@yandex.ru>:

I don't work on jitsi, its just my personal advice )
Internet packets may travel not optimal ways and paths. But skype has a
lot of super servers acting like proxy. But jisti just connects point1 with
point2 without superservers and without super wideband optical channels.
Thats why we met this problem.

18.08.2014, 15:57, "Jonathan BOUSSOIR" <jonathan.boussoir@gmail.com>:
> Hi
> Thank you for your reply but I have trouble believing it because I can
spend hours have Skype audio AND audio / video. Jitsi even with only audio:
the call hangs in one direction (the person can hear me but not me) after a
few minutes.
>
> Jonathan
>
> 2014-08-18 13:38 GMT+02:00 v k <v.karm@yandex.ru>:
>
>> Hi
>> i thinks its not fault of jitsi. Its all because international traffic
costs a lot for internet providers, and also because international optical
channels often are overloaded by p2p traffic.
>>
>> 18.08.2014, 15:34, "Jonathan BOUSSOIR" <jonathan.boussoir@gmail.com>:
>>> Hi,
>>>
>>> I have the same problem with Morocco. :frowning:
>>> I used Skype before I could with a conversation for more than 4 hours
of video between France and Morocco. Skype now known there are problems
connecting to the server for autentication accounts, that's a shame.
>>> I looked for another solution and found Jitsi but it does not work
very well. I do not even talk about the video because it's very bad. Just
audio communication blocks in one direction after a few minutes of
discussion. Whenever you have to cut and call the person. It's very
disappointing. Yet Jitsi seems very promising but still too young because
there are a lot of things that do not work well.
>>>
>>> Jonathan
>>>
>>> 2014-08-18 12:48 GMT+02:00 Ronald Fischer <ynnor@mm.st>:
>>>> I'm on a pretty fast DSL line, and speedtest looks good. My chat
partner
>>>> lives in China, and her connection is much worse: About 500KB/s
>>>> downstream and around 100KB/s upstream.
>>>>
>>>> When starting the Chat, we first even had a video and a voice
>>>> connection, although, of course, with bad quality, but it went worse.
In
>>>> the end, we only had voice, and this in only one direction: I could
hear
>>>> her, but she couldn't hear me anymore.
>>>>
>>>> Opening the diagnostic window of the Jitsi chat client, I could see
many
>>>> package losses upstream (more than 80%), and the upstream speed from
my
>>>> computer towards the other party was shown as around 5 KB/s only. No
>>>> surprise that even voice didn't go throught. The downstream bandwidth
>>>> from her computer to mine was also not that good, always around 60-70
>>>> KBs.
>>>>
>>>> Now, what I don't understand is why the data rate is so low. There was
>>>> certainly no problem with my Internet connection, as I could verify.
>>>> Even though my chat partner has rather slow Internet, the speeds we
were
>>>> experiencing, were ways below what we could, in theory, have.
>>>>
>>>> BTW, we both terminated other applications on our systems, to reduce
the
>>>> probability that some other program is taking bandwidth.
>>>>
>>>> Immediately afterwards, I had a video chat with a Japanese friend, and
>>>> it worked without problems.
>>>>
>>>> Any suggestions what we can do here? Is there anything in the Jitsi
>>>> settings where I could fine-tune the connection to better use the low
>>>> bandwidth?
>>>>
>>>> Ronald
>>>>
>>>> _______________________________________________
>>>> users mailing list
>>>> users@jitsi.org
>>>> Unsubscribe instructions and other list options:
>>>> http://lists.jitsi.org/mailman/listinfo/users
>>> ,
>>>
>>> _______________________________________________
>>> users mailing list
>>> users@jitsi.org
>>> Unsubscribe instructions and other list options:
>>> http://lists.jitsi.org/mailman/listinfo/users
>>
>> _______________________________________________
>> users mailing list
>> users@jitsi.org
>> Unsubscribe instructions and other list options:
>> http://lists.jitsi.org/mailman/listinfo/users
>
> ,
>
> _______________________________________________
> users mailing list
> users@jitsi.org
> Unsubscribe instructions and other list options:
> http://lists.jitsi.org/mailman/listinfo/users

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#7

you're probably using jit.si as server. In that case it is an old
problem: http://lists.jitsi.org/pipermail/users/2014-March/006683.html
There is no solution.

···

2014-08-18 14:30 GMT+02:00 Jonathan BOUSSOIR <jonathan.boussoir@gmail.com>:

okay
Thank you for your clarification on the communication from Jitsi.
But that does not over due problem I have with Jitsi
Jonathan

2014-08-18 14:01 GMT+02:00 v k <v.karm@yandex.ru>:

I don't work on jitsi, its just my personal advice )
Internet packets may travel not optimal ways and paths. But skype has a
lot of super servers acting like proxy. But jisti just connects point1 with
point2 without superservers and without super wideband optical channels.
Thats why we met this problem.

18.08.2014, 15:57, "Jonathan BOUSSOIR" <jonathan.boussoir@gmail.com>:
> Hi
> Thank you for your reply but I have trouble believing it because I can
> spend hours have Skype audio AND audio / video. Jitsi even with only audio:
> the call hangs in one direction (the person can hear me but not me) after a
> few minutes.
>
> Jonathan
>
> 2014-08-18 13:38 GMT+02:00 v k <v.karm@yandex.ru>:
>
>> Hi
>> i thinks its not fault of jitsi. Its all because international traffic
>> costs a lot for internet providers, and also because international optical
>> channels often are overloaded by p2p traffic.
>>
>> 18.08.2014, 15:34, "Jonathan BOUSSOIR" <jonathan.boussoir@gmail.com>:
>>> Hi,
>>>
>>> I have the same problem with Morocco. :frowning:
>>> I used Skype before I could with a conversation for more than 4 hours
>>> of video between France and Morocco. Skype now known there are problems
>>> connecting to the server for autentication accounts, that's a shame.
>>> I looked for another solution and found Jitsi but it does not work
>>> very well. I do not even talk about the video because it's very bad. Just
>>> audio communication blocks in one direction after a few minutes of
>>> discussion. Whenever you have to cut and call the person. It's very
>>> disappointing. Yet Jitsi seems very promising but still too young because
>>> there are a lot of things that do not work well.
>>>
>>> Jonathan
>>>
>>> 2014-08-18 12:48 GMT+02:00 Ronald Fischer <ynnor@mm.st>:
>>>> I'm on a pretty fast DSL line, and speedtest looks good. My chat
>>>> partner
>>>> lives in China, and her connection is much worse: About 500KB/s
>>>> downstream and around 100KB/s upstream.
>>>>
>>>> When starting the Chat, we first even had a video and a voice
>>>> connection, although, of course, with bad quality, but it went worse.
>>>> In
>>>> the end, we only had voice, and this in only one direction: I could
>>>> hear
>>>> her, but she couldn't hear me anymore.
>>>>
>>>> Opening the diagnostic window of the Jitsi chat client, I could see
>>>> many
>>>> package losses upstream (more than 80%), and the upstream speed from
>>>> my
>>>> computer towards the other party was shown as around 5 KB/s only. No
>>>> surprise that even voice didn't go throught. The downstream bandwidth
>>>> from her computer to mine was also not that good, always around 60-70
>>>> KBs.
>>>>
>>>> Now, what I don't understand is why the data rate is so low. There
>>>> was
>>>> certainly no problem with my Internet connection, as I could verify.
>>>> Even though my chat partner has rather slow Internet, the speeds we
>>>> were
>>>> experiencing, were ways below what we could, in theory, have.
>>>>
>>>> BTW, we both terminated other applications on our systems, to reduce
>>>> the
>>>> probability that some other program is taking bandwidth.
>>>>
>>>> Immediately afterwards, I had a video chat with a Japanese friend,
>>>> and
>>>> it worked without problems.
>>>>
>>>> Any suggestions what we can do here? Is there anything in the Jitsi
>>>> settings where I could fine-tune the connection to better use the low
>>>> bandwidth?
>>>>
>>>> Ronald
>>>>
>>>> _______________________________________________
>>>> users mailing list
>>>> users@jitsi.org
>>>> Unsubscribe instructions and other list options:
>>>> http://lists.jitsi.org/mailman/listinfo/users
>>> ,
>>>
>>> _______________________________________________
>>> users mailing list
>>> users@jitsi.org
>>> Unsubscribe instructions and other list options:
>>> http://lists.jitsi.org/mailman/listinfo/users
>>
>> _______________________________________________
>> users mailing list
>> users@jitsi.org
>> Unsubscribe instructions and other list options:
>> http://lists.jitsi.org/mailman/listinfo/users
>
> ,
>
> _______________________________________________
> users mailing list
> users@jitsi.org
> Unsubscribe instructions and other list options:
> http://lists.jitsi.org/mailman/listinfo/users

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users@jitsi.org
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#8

I had similar problems and for me the audio backend was at fault. I
guess you can find the mails in the archive a couple of months back. At
least for me on Linux the ALSA backend of Jitsi exhibits this issue
while the PA backend works OK.
Oh, and I had these problems in Central/Western Europe, so I don't
think that bandwidth is the reason. I also used the jit.si server and
we required its proxy or relay or whatever it was, but I think this was
mostly necessary for establishing the connection.

Regards,
Philipp

···

On Tue, 19 Aug 2014 00:37:10 +0200 Mitchell Langs <napole@gmail.com> wrote:

you're probably using jit.si as server. In that case it is an old
problem: http://lists.jitsi.org/pipermail/users/2014-March/006683.html
There is no solution.

2014-08-18 14:30 GMT+02:00 Jonathan BOUSSOIR
<jonathan.boussoir@gmail.com>:
> okay
> Thank you for your clarification on the communication from Jitsi.
> But that does not over due problem I have with Jitsi
> Jonathan
>
>
> 2014-08-18 14:01 GMT+02:00 v k <v.karm@yandex.ru>:
>
>> I don't work on jitsi, its just my personal advice )
>> Internet packets may travel not optimal ways and paths. But skype
>> has a lot of super servers acting like proxy. But jisti just
>> connects point1 with point2 without superservers and without super
>> wideband optical channels. Thats why we met this problem.
>>
>> 18.08.2014, 15:57, "Jonathan BOUSSOIR"
>> <jonathan.boussoir@gmail.com>:
>> > Hi
>> > Thank you for your reply but I have trouble believing it because
>> > I can spend hours have Skype audio AND audio / video. Jitsi even
>> > with only audio: the call hangs in one direction (the person can
>> > hear me but not me) after a few minutes.
>> >
>> > Jonathan
>> >
>> > 2014-08-18 13:38 GMT+02:00 v k <v.karm@yandex.ru>:
>> >
>> >> Hi
>> >> i thinks its not fault of jitsi. Its all because international
>> >> traffic costs a lot for internet providers, and also because
>> >> international optical channels often are overloaded by p2p
>> >> traffic.
>> >>
>> >> 18.08.2014, 15:34, "Jonathan BOUSSOIR"
>> >> <jonathan.boussoir@gmail.com>:
>> >>> Hi,
>> >>>
>> >>> I have the same problem with Morocco. :frowning:
>> >>> I used Skype before I could with a conversation for more than
>> >>> 4 hours of video between France and Morocco. Skype now known
>> >>> there are problems connecting to the server for autentication
>> >>> accounts, that's a shame. I looked for another solution and
>> >>> found Jitsi but it does not work very well. I do not even talk
>> >>> about the video because it's very bad. Just audio
>> >>> communication blocks in one direction after a few minutes of
>> >>> discussion. Whenever you have to cut and call the person. It's
>> >>> very disappointing. Yet Jitsi seems very promising but still
>> >>> too young because there are a lot of things that do not work
>> >>> well.
>> >>>
>> >>> Jonathan
>> >>>
>> >>> 2014-08-18 12:48 GMT+02:00 Ronald Fischer <ynnor@mm.st>:
>> >>>> I'm on a pretty fast DSL line, and speedtest looks good. My
>> >>>> chat partner
>> >>>> lives in China, and her connection is much worse: About
>> >>>> 500KB/s downstream and around 100KB/s upstream.
>> >>>>
>> >>>> When starting the Chat, we first even had a video and a voice
>> >>>> connection, although, of course, with bad quality, but it
>> >>>> went worse. In
>> >>>> the end, we only had voice, and this in only one direction: I
>> >>>> could hear
>> >>>> her, but she couldn't hear me anymore.
>> >>>>
>> >>>> Opening the diagnostic window of the Jitsi chat client, I
>> >>>> could see many
>> >>>> package losses upstream (more than 80%), and the upstream
>> >>>> speed from my
>> >>>> computer towards the other party was shown as around 5 KB/s
>> >>>> only. No surprise that even voice didn't go throught. The
>> >>>> downstream bandwidth from her computer to mine was also not
>> >>>> that good, always around 60-70 KBs.
>> >>>>
>> >>>> Now, what I don't understand is why the data rate is so low.
>> >>>> There was
>> >>>> certainly no problem with my Internet connection, as I could
>> >>>> verify. Even though my chat partner has rather slow Internet,
>> >>>> the speeds we were
>> >>>> experiencing, were ways below what we could, in theory, have.
>> >>>>
>> >>>> BTW, we both terminated other applications on our systems, to
>> >>>> reduce the
>> >>>> probability that some other program is taking bandwidth.
>> >>>>
>> >>>> Immediately afterwards, I had a video chat with a Japanese
>> >>>> friend, and
>> >>>> it worked without problems.
>> >>>>
>> >>>> Any suggestions what we can do here? Is there anything in the
>> >>>> Jitsi settings where I could fine-tune the connection to
>> >>>> better use the low bandwidth?
>> >>>>
>> >>>> Ronald