asterisk users - Dec 2018 - Question about packet counts in voipmonitor

Hi all,

I'm not sure this is the place to ask, but here goes...

I'm using voipmonitor to gather call statistics such as packet counts,
average jitter, etc.
Eventually, I want to use those stats to detect and alert on poor call quality.

However, I'm finding that the packet counts for each leg of a given call can
vary quite a
bit.  

For example, I have a call that was connected for 84 seconds.  At 50 frames/sec,
I
expect to see about 4200 frames.  However, on one side I see 4187 (which is
good) and
on the other side, I only see 2577 frames sent.

Am I doing something wrong?  Or is this approach simply doomed?

Any thoughts would be welcome.

-- 
Mike Diehl


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Mike,

Are you using port mirroring or is  VoipMonitor running on the same box? If
the latter I would run tcpdump and compare what VM says it has to what you
see in your wireshark dump. If you are sniffing via port mirroring your
switch maybe dropping packets (we had that when we tried to mirror 700 mbit
of traffic on a Juniper EX4200).


On Fri, Dec 21, 2018 at 8:13 PM Mike Diehl <mdiehlenator at gmail.com>
wrote:
> Hi all,
>
>
>
> I'm not sure this is the place to ask, but here goes...
>
>
>
> I'm using voipmonitor to gather call statistics such as packet counts,
> average jitter, etc. Eventually, I want to use those stats to detect and
> alert on poor call quality.
>
>
>
> However, I'm finding that the packet counts for each leg of a given
call
> can vary quite a bit.
>
>
>
> For example, I have a call that was connected for 84 seconds. At 50
> frames/sec, I expect to see about 4200 frames. However, on one side I see
> 4187 (which is good) and on the other side, I only see 2577 frames sent.
>
>
>
> Am I doing something wrong? Or is this approach simply doomed?
>
>
>
> Any thoughts would be welcome.
>
>
>
> --
>
> Mike Diehl
>
>
>
>
> --
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