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Summary:ASTERISK-22935: [patch] Infinity retransmission SIP packet loop when no response from far end
Reporter:Igor Nikolaev (microlana)Labels:patch
Date Opened:2013-12-03 02:50:35.000-0600Date Closed:
Priority:MinorRegression?No
Status:Open/NewComponents:Channels/chan_sip/General
Versions:11.6.0 13.18.4 Frequency of
Occurrence		Occasional
Related
Issues:
Environment:Attachments:( 0) asterisk-chan_sip-fix-xmit-retry.patch
Description:In some cases SIP channels infinity retransmit packets when it not receive a response from remote side.

Examples of sip show history on looped channels

(channel marked as 'for dead'):

{noformat}
 * SIP Call
1. Rx INVITE / 102 INVITE / sip:4952010100@89.107.124.29
2. AuthChal Auth challenge sent for - nc 0
3. TxRespRel SIP/2.0 / 102 INVITE - 401 Unauthorized
4. SchedDestroy 6400 ms
5. ReTx 200 SIP/2.0 401 Unauthorized
6. ReTx 400 SIP/2.0 401 Unauthorized
7. ReTx 800 SIP/2.0 401 Unauthorized
8. ReTx 1600 SIP/2.0 401 Unauthorized
9. Rx ACK / 102 ACK / sip:4952010100@89.107.124.29
10. Rx INVITE / 103 INVITE / sip:4952010100@89.107.124.29
11. CancelDestroy
12. Invite New call: 5e8b903719fefb7824b52f587053b8e3@89.107.124.15:5060
13. AuthOK Auth challenge successful for 001000
14. NewChan Channel SIP/001000-0000079c - from 5e8b903719fefb7824b52f587053
15. TxResp SIP/2.0 / 103 INVITE - 100 Trying
16. TxRespRel SIP/2.0 / 103 INVITE - 503 Service Unavailable
17. Hangup Cause Temporary failure
18. NeedDestroy Setting needdestroy because hangup
19. ReTx 4000 SIP/2.0 503 Service Unavailable
20. ReTx 4000 SIP/2.0 503 Service Unavailable
21. ReTx 4000 SIP/2.0 503 Service Unavailable
22. ReTx 4000 SIP/2.0 503 Service Unavailable
23. ReTx 4000 SIP/2.0 503 Service Unavailable
24. ReTx 4000 SIP/2.0 503 Service Unavailable
25. ReTx 4000 SIP/2.0 503 Service Unavailable
26. ReTx 4000 SIP/2.0 503 Service Unavailable
27. ReTx 4000 SIP/2.0 503 Service Unavailable
28. ReTx 4000 SIP/2.0 503 Service Unavailable
29. ReTx 4000 SIP/2.0 503 Service Unavailable
30. ReTx 4000 SIP/2.0 503 Service Unavailable
31. ReTx 4000 SIP/2.0 503 Service Unavailable
32. ReTx 4000 SIP/2.0 503 Service Unavailable
33. ReTx 4000 SIP/2.0 503 Service Unavailable
34. ReTx 4000 SIP/2.0 503 Service Unavailable
35. ReTx 4000 SIP/2.0 503 Service Unavailable
36. ReTx 4000 SIP/2.0 503 Service Unavailable
37. ReTx 4000 SIP/2.0 503 Service Unavailable
38. ReTx -716177408 SIP/2.0 503 Service Unavailable
{noformat}

Channel not marked as 'for dead':

 * SIP Call
{noformat}
1. Rx INVITE / 102 INVITE / sip:4952010100@89.107.124.29
2. AuthChal Auth challenge sent for - nc 0
3. TxRespRel SIP/2.0 / 102 INVITE - 401 Unauthorized
4. SchedDestroy 131072 ms
5. ReTx 4000 SIP/2.0 401 Unauthorized
6. Rx INVITE / 102 INVITE / sip:4952010100@89.107.124.29
7. ReTx 4000 SIP/2.0 401 Unauthorized
8. ReTx 4000 SIP/2.0 401 Unauthorized
9. ReTx 4000 SIP/2.0 401 Unauthorized
10. ReTx 4000 SIP/2.0 401 Unauthorized
11. ReTx 4000 SIP/2.0 401 Unauthorized
12. ReTx 4000 SIP/2.0 401 Unauthorized
13. ReTx 4000 SIP/2.0 401 Unauthorized
14. ReTx 4000 SIP/2.0 401 Unauthorized
15. ReTx 4000 SIP/2.0 401 Unauthorized
16. ReTx 4000 SIP/2.0 401 Unauthorized
17. ReTx 4000 SIP/2.0 401 Unauthorized
18. ReTx 4000 SIP/2.0 401 Unauthorized
19. ReTx 4000 SIP/2.0 401 Unauthorized
20. ReTx 4000 SIP/2.0 401 Unauthorized
21. ReTx 4000 SIP/2.0 401 Unauthorized
22. ReTx 4000 SIP/2.0 401 Unauthorized
23. ReTx 4000 SIP/2.0 401 Unauthorized
24. ReTx 4000 SIP/2.0 401 Unauthorized
25. ReTx -2147483648 SIP/2.0 401 Unauthorized
26. ReliableXmit timeout
27. ReliableXmit timeout
{noformat}
Comments:By: Igor Nikolaev (microlana) 2013-12-03 02:53:38.752-0600

Fix infinity packet retransmission patch