On 2/13/18 11:55 AM, Michael Maier wrote:
On 02/13/2018 at 08:41 AM Floimair Florian wrote:
No you're reading it wrong.
There are 188K received with no loss, and 16441K transmitted.
This doesn't make any sense to me, either. There can't be more packages
transmitted than received. It's the same codec in and out and it's been
running exactly the same time.
Lost and Percent (pct) are not calculated by counting packets. Those are
calculated from the sequence numbers in the RTP frame.
For example let's say you start the receiver (Asterisk) at Sequence
#1....then something happens and it jumps to sequence #5000. The audio
might be fine, but now the stats say 4998 packets were lost. Why is
there a bizarre sequence jump? Hard to say. I have seen it because of
bugs that eventually get fixed on the CPE, or even when there is a
change of codec (or re-invite) mid-call. I would not worry too much
about this unless you can reproduce it and can address it properly at
the CPE level. A packet capture will clearly confirm what I am
referring to here. Just look at every Sequence # in the RTP flow and
you will see the jump.
...........Receive......... .........Transmit..........
Count Lost Pct Jitter Count Lost Pct Jitter RTT....
188K 0 0 0.000 188K 16641K 8809 0.000 0.026
^^^^ ^^^^
There are 188K received and 188K transmitted. Pct is unknown - what's Pct?
Still 8809 does not sound like a percentage to me 😉 so there is something wrong
with either the label or the value.
From what's in the code, you can see it's clearly a lost Packet count not a
percentage.
So I guess Pct in this case is short for "Packet".
With best regards
Florian Floimair
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Von: asterisk-users-boun...@lists.digium.com
[mailto:asterisk-users-boun...@lists.digium.com] Im Auftrag von Michael Maier
Gesendet: Montag, 12. Februar 2018 17:46
An: asterisk-users@lists.digium.com
Betreff: Re: [asterisk-users] What does pct mean?
Hi Carsten,
On 02/11/2018 at 07:46 PM Carsten Bock wrote:
Hi,
Lost percent (%)....
Are you sure? I'm seeing here:
...........Receive......... .........Transmit..........
Count Lost Pct Jitter Count Lost Pct Jitter RTT....
188K 0 0 0.000 188K 16641K 8809 0.000 0.026
=> This doesn't sound reliable to me: there are 188K packets and 16641K of them
are lost?! The Pct value is fluctuating between about 6009 and 9009.
Thanks,
Michael
Am 11.02.2018 19:27 schrieb "Michael Maier" <m1278...@mailbox.org>:
Hello,
could somebody please tell me the meaning of "Pct" as seen in asterisk cli:
...........Receive......... .........Transmit..........
Count Lost Pct Jitter Count Lost Pct Jitter RTT....
Thanks,
Michael
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