[SR-Users] RTPengine + kernel module long call RTP drops

[Anthony Joseph Messina]

On Wednesday, April 5, 2017 8:55:36 AM CDT Richard Fuchs wrote:
> On 04/04/2017 09:33 PM, Anthony Joseph Messina wrote:
> > After more digging, I see (from the Asterisk perspective) that after a
> > certain amount of time, the "RTCP report" size gets smaller and this is
> > the point at which the audio from Asterisk back to the softphone is
> > dropped.  Again, this audio drop occurred around 19 minutes into the
> > call.
> > 
> > I'm not sure this means anything, but perhaps it can point someone more
> > knowledgeable in the right direction.
> 
> A good place to start is to inspect /proc/rtpengine/0/list and check the
> packet and byte counters for the respective local ports. This way you
> can check if incoming packets are actually arriving at rtpengine.

Thanks, Richard. I am amidst a call right now which shows it's kernelized.  
The output from cat /proc/rtpengine/0/list shows nothing changing throughout 
the call (after repeating the command).  

rtpengine[29508]: INFO: [0_4088656235 at 10.77.79.165 port 30520]: Confirmed peer 
address as 10.77.79.3:10646
rtpengine[29508]: INFO: [0_4088656235 at 10.77.79.165 port 30534]: Confirmed peer 
address as 10.77.79.165:12668
rtpengine[29508]: INFO: [0_4088656235 at 10.77.79.165 port 30534]: Kernelizing 
media stream: 10.77.79.165:12668
rtpengine[29508]: DEBUG: [0_4088656235 at 10.77.79.165 port 30534]: enabling 
kernel intercept with stream idx 2
rtpengine[29508]: INFO: [0_4088656235 at 10.77.79.165 port 30520]: Kernelizing 
media stream: 10.77.79.3:10646
rtpengine[29508]: DEBUG: [0_4088656235 at 10.77.79.165 port 30520]: enabling 
kernel intercept with stream idx 0
rtpengine[29508]: INFO: [0_4088656235 at 10.77.79.165 port 30521]: Confirmed peer 
address as 10.77.79.3:10647
rtpengine[29508]: INFO: [0_4088656235 at 10.77.79.165 port 30535]: Confirmed peer 
address as 10.77.79.165:12669

~]# cat /proc/rtpengine/0/list
local inet4 10.77.79.3:30520
       src inet4 10.77.79.3:30534
       dst inet4 10.77.79.165:12668
    stats:                    0 bytes,                    0 packets,                    
0 errors
        RTP payload type   0:                    0 bytes,                    0 
packets
        RTP payload type   9:                    0 bytes,                    0 
packets
        RTP payload type 101:                    0 bytes,                    0 
packets
        RTP payload type 106:                    0 bytes,                    0 
packets
    SRTP encryption (outgoing) parameters:
        cipher: AES-CM-128
        HMAC: HMAC-SHA1
            auth tag length: 10
local inet4 10.77.79.3:30534
       src inet4 10.77.79.3:30520
       dst inet4 10.77.79.3:10646
    stats:                    0 bytes,                    0 packets,                    
0 errors
        RTP payload type   0:                    0 bytes,                    0 
packets
        RTP payload type   9:                    0 bytes,                    0 
packets
        RTP payload type 101:                    0 bytes,                    0 
packets
        RTP payload type 106:                    0 bytes,                    0 
packets
    SRTP decryption (incoming) parameters:
        cipher: AES-CM-128
        HMAC: HMAC-SHA1
            auth tag length: 10

-- 
Anthony - https://messinet.com/ - https://messinet.com/~amessina/gallery
F9B6 560E 68EA 037D 8C3D  D1C9 FF31 3BDB D9D8 99B6
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: This is a digitally signed message part.
URL: <http://lists.sip-router.org/pipermail/sr-users/attachments/20170405/be8367ea/attachment.sig>