1.    Via: SIP/2.0/UDP 172.21.0.11:5080;rport;branch=z9hG4bKKZ11t2yFF3KHe
2.    From: sut <sip:1001@172.21.0.11:5080>;tag=FZ9cc6a6gBgZK
3.    To: sipp <sip:sipp@172.21.0.1:5060>;tag=14101SIPpTag001
4.    Call-ID: 1-14101@172.21.0.1
5.    CSeq: 99581170 BYE
6.    Content-Length: 0
7.    
8.    ------------------------------------------------------------------------
9. tport.c:3023 tport_deliver() tport_deliver(0x7fc74c0044c0): msg 0x7fc74c00afc0 (269 bytes) from udp/172.21.0.1:5080/sip next=(nil)
10. nta.c:3299 agent_recv_response() nta: received 200 OK for BYE (99581170)
11. nta.c:3366 agent_recv_response() nta: 200 OK is going to a transaction
12. nta.c:9564 outgoing_estimate_delay() nta_outgoing: RTT is 0.574 ms
13. tport.c:4222 tport_release() tport_release(0x7fc74c0044c0): 0x7fc74c013fb0 by 0x7fc74c014820 with 0x7fc74c00afc0
14. nua_stack.c:271 nua_stack_event() nua(0x7fc74c00b410): event r_bye 200 OK
15. nua_session.c:4139 signal_call_state_change() nua(0x7fc74c00b410): call state changed: terminating -> terminated
16. nua_stack.c:271 nua_stack_event() nua(0x7fc74c00b410): event i_state 200 to BYE
17. nua_stack.c:271 nua_stack_event() nua(0x7fc74c00b410): event i_terminated 200 to BYE
18. nua_dialog.c:397 nua_dialog_usage_remove_at() nua(0x7fc74c00b410): removing session usage
19. nua_stack.c:359 nua_application_event() nua: nua_application_event: entering
20. nta.c:4470 nta_leg_destroy() nta_leg_destroy(0x7fc74c005d90)
21. nua_session.c:351 nua_session_usage_destroy() nua: terminated session 0x7fc74c00b410
22. nua_stack.c:359 nua_application_event() nua: nua_application_event: entering
23. nua.c:366 nua_handle_magic() nua: nua_handle_magic: entering
24. nua_stack.c:359 nua_application_event() nua: nua_application_event: entering
25. nua.c:366 nua_handle_magic() nua: nua_handle_magic: entering
26. nua.c:366 nua_handle_magic() nua: nua_handle_magic: entering
27. nua.c:366 nua_handle_magic() nua: nua_handle_magic: entering
28. nua.c:342 nua_handle_bind() nua: nua_handle_bind: entering
29. nua.c:366 nua_handle_magic() nua: nua_handle_magic: entering
30. nua.c:366 nua_handle_magic() nua: nua_handle_magic: entering
31. nua.c:921 nua_handle_destroy() nua: nua_handle_destroy: entering
32. nua_stack.c:529 nua_signal() nua(0x7fc74c00b410): sent signal r_destroy
33. nua_stack.c:569 nua_stack_signal() nua(0x7fc74c00b410): recv signal r_destroy
34. nta.c:4470 nta_leg_destroy() nta_leg_destroy((nil))
35. b050ccfe-5b37-4b34-b8e0-8d2b18964895 2016-11-22 17:08:05.974873 [DEBUG] switch_core_state_machine.c:610 (sofia/external/sipp@172.21.0.1:5060) State Change CS_REPORTING -> CS_DESTROY
36. b050ccfe-5b37-4b34-b8e0-8d2b18964895 2016-11-22 17:08:05.974873 [DEBUG] switch_core_session.c:1647 Session 1 (sofia/external/sipp@172.21.0.1:5060) Locked, Waiting on external entities
37. nta.c:1296 agent_timer() nta: timer set next to 4000 ms
38. tport.c:2749 tport_wakeup_pri() tport_wakeup_pri(0x7fc734004280): events IN
39. tport.c:2864 tport_recv_event() tport_recv_event(0x7fc734004280)
40. tport.c:3205 tport_recv_iovec() tport_recv_iovec(0x7fc734004280) msg 0x7fc7340145f0 from (udp/172.21.0.11:5060) has 4 bytes, veclen = 1
41. tport.c:3023 tport_deliver() tport_deliver(0x7fc734004280): bad msg 0x7fc7340145f0 (4 bytes) from udp/172.21.0.1:5060/sip next=(nil)
42. nta.c:9101 outgoing_timer_dk() nta: timer K fired, terminate BYE (99581170)
43. nta.c:8799 outgoing_reclaim_queued() outgoing_reclaim_all((nil), (nil), 0x7fc774affd40)
44. nta.c:8929 _nta_outgoing_timer() nta_outgoing_timer: 0/0 resent, 0/2 tout, 1/3 term, 1/5 free
45. nta.c:1296 agent_timer() nta: timer set next to 5819 ms
46. nta.c:9101 outgoing_timer_dk() nta: timer D fired, terminate INVITE (99581168)
47. nta.c:8799 outgoing_reclaim_queued() outgoing_reclaim_all((nil), (nil), 0x7fc774affd40)
48. nta.c:8929 _nta_outgoing_timer() nta_outgoing_timer: 0/0 resent, 0/2 tout, 1/2 term, 1/4 free
49. nta.c:1296 agent_timer() nta: timer set next to 40 ms
50. nta.c:8982 outgoing_timer_bf() nta: timer F fired, terminating ACK (99581168)
51. nta.c:8799 outgoing_reclaim_queued() outgoing_reclaim_all((nil), (nil), 0x7fc774affd40)
52. nta.c:8929 _nta_outgoing_timer() nta_outgoing_timer: 0/0 resent, 1/2 tout, 0/1 term, 1/3 free
53. nta.c:1296 agent_timer() nta: timer set next to 4830 ms
54.