[Spce-user] master/mr5.3: rtpengine computing MOS on SRTCP(encrypted): issue 366

Andreas Granig agranig at sipwise.com
Wed May 24 03:36:17 EDT 2017


Hi Anthony,

Thanks for the infos, we'll check it the next days, might take a week to
analyze and tackle it.

Andreas

On 05/19/2017 04:14 AM, Anthony Alba wrote:
> https://github.com/sipwise/rtpengine/issues/366
> 
> I am testing mr5.3 and master mr5.4. rtpengine is trying to compute
> MOS over SRTCP so of course gets nonsense answers (SRTP session).
> 
> rtpengine -i priv/10.0.0.1 -i public/10.1.0.1\!5.6.7.8 -n 12221 -f -F
> -t 0 -c 12222 -E
> 
> [1495159131.405362] INFO: Generating new DTLS certificate
> [1495159131.423543] INFO: Startup complete, version git-mr5.4-b6c9c6c
> 
> Many messages like this:
> 
> [1495159231.018974] INFO: [A9KQiDWsm7DfMmLBXkfY17bdMR7-mnKr port
> 30055]: SSRC hash table exceeded size limit (trying to add 3443372870)
> [1495159231.336048] INFO: [A9KQiDWsm7DfMmLBXkfY17bdMR7-mnKr port
> 30055]: SSRC hash table exceeded size limit (trying to add 4077210622)
> [1495159231.663612] INFO: [A9KQiDWsm7DfMmLBXkfY17bdMR7-mnKr port
> 30055]: SSRC hash table exceeded size limit (trying to add 807792821)
> [1495159231.983316] INFO: [A9KQiDWsm7DfMmLBXkfY17bdMR7-mnKr port
> 30055]: SSRC hash table exceeded size limit (trying to add 1997791840)
> [1495159232.327094] INFO: [A9KQiDWsm7DfMmLBXkfY17bdMR7-mnKr port
> 30055]: SSRC hash table exceeded size limit (trying to add 995538883)
> [1495159232.619282] INFO: [A9KQiDWsm7DfMmLBXkfY17bdMR7-mnKr port
> 30055]: SSRC hash table exceeded size limit (trying to add 43688544)
> 
> 
> I did a tcpdump of the session and indeed the numbers like 3443372870
> are ciphertext.
> 
> Is there a way to disable MOS during SRTP? Filed as #366.
> 
> Thanks
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