[asterisk-bugs] [JIRA] (ASTERISK-28634) Invite loop within PJSIP

[Benjamin Keith Ford (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-28634?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benjamin Keith Ford updated ASTERISK-28634:
-------------------------------------------

    Assignee: Joeran Vinzens  (was: Unassigned)
      Status: Waiting for Feedback  (was: Triage)

So, since the re-invites are not seen in the pcap for the other side, I'm wondering if it is a valid re-invite, but it's never making it to the customer and that's causing it to loop. Can you check the kamailio instances to see if the re-invite is being seen and sent to the customer?

> Invite loop within PJSIP
> ------------------------
>
>                 Key: ASTERISK-28634
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28634
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_pjsip
>    Affects Versions: 17.0.0
>         Environment: Asterisk 17.0.0 with bundled PJSIP on Debian Buster
>            Reporter: Joeran Vinzens
>            Assignee: Joeran Vinzens
>         Attachments: asterisk_invite_loop_other_side.pcap, invite_loop_small.pcap, pjsip.conf, Screenshot from 2019-11-26 10-19-59.png
>
>
> Fom time to time we can see traffic increase on out Asterisk Systems. After some debugging we see the Asterisk send kind of an Invite loop over and over. Since there is no way to deny re-invites in PJSIP there is no way out of it. From asterisk perspective it sends these re-invites as fast as it can which result in an increase of 3MBit/s of signalling traffic from this maschine. So far we do not know how to reproduce the issue but we captured the scenario from our production system. (trace attached) the Asterisk log itself just tells us the Invite is going out but nothing further. There was no trigger on the other call-leg.



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