Hello,

Attached chat_and_airport_sprout_core_20140528_1600.tbz
With extra debug logging in sprout and pcap from clearwater and mas.
There seems to have been 2 sprout cores . . . ?

Look at this time period:

16:34 2 handsets registered. chat.
16:36:26 one handset into airport mode
 16:38:00 in pcap see OPTIONS 408 408 480 . . . 480 408 (last 2 packets
1922, 1923)
16:38:13 sprout logs Basic stack dump
16:39:24 First BYE seen
16:39:55 sprout logs Basic and Advanced stack dump
16:39:56 last BYE and 408 seen in pcap

Thanks!

James.




On 28 May 2014 16:59, James Coleman <[email protected]>wrote:

> Hello,
>
> My reply with attached logs and pcap is awaiting moderator . . .
> in the meantime . . . here is the text . . .
>
> Thanks Matt,
>
> James.
>
> On 28 May 2014 16:44, James Coleman <[email protected]>wrote:
>
>> Great, Thanks very much Matt, . . .
>>
>> The full logs for those times are gone. :-7
>> However just now I did chat and airport mode and got a sprout core.
>> I have collected .pcap and logs* (see attached)* . . . however I realise
>> now sprout debug logging is not on.
>> Anyway I will send these to you and turn up sprout logging and do it
>> again.
>>    I presume the full sprout debug logs would be useful.
>>
>> I find Wireshark - Telephony - VoIP flow is quite useful to get an
>> overview of what is happening.
>> Can see that the BYE messages go a bit funny.
>> I'm not sure why but the handset that doesn't go into airport mode
>> initiates BYE.
>> I'm guessing something happening on the MSRP session triggered that.
>>  I should capture debug or .pcap on the MAS to see that.
>> BYE from that handset transitions through sprout to MAS okay
>> BYE from MAS to other handset is retried . . . every 4 secs . . . 8 times
>>  408 request timeout response to BYE
>>  408 request timeout response to an OPTIONS
>>  OPTIONS
>>  100 trying
>>  480 temporarily unavailable response to OPTIONS
>> **sprout core dump**
>>
>>
>> answering questions inline below . . . in colour . . .
>>
>>
>> Thanks for digging into this!
>>
>> James.
>>
>>
>>
>> On 28 May 2014 15:11, Matt Williams <[email protected]> wrote:
>>
>>> James,
>>>
>>> Thanks for raising this issue - I've been digging into it.
>>>
>>> I was hoping I could get a bit more detail on the SIP flow here.  I've
>>> stated what I understand (with some gaps) below - please could you correct
>>> any errors, and provide any missing details?
>>> - You're sending a SIP MESSAGE from one UE.
>>> - You're trying to send the SIP MESSAGE to another UE that is registered
>>> but uncontactable (because it's in airplane mode).
>>>
>>
>> *Yes. A normal chat session happens first. *
>> *INVITE from one handset -> bono -> sprout -> mas -> sprout -> bono ->
>> other handset*
>> * then 200 ok*
>> * then ACK*
>> * then chat messages exchange on MSRP session*
>> *I have just one ims and one mas so anything going to mas (OPTIONS or
>> INVITES or other messages) comes straight back out on the other leg.*
>>
>>
>>> - You're going via an AS.  (Is that right?)
>>
>> - What (if anything) does the AS do to the SIP flow?
>>>
>>
>> *Yes. . . sprout -> mas -> sprout generally for SIP messages . . . *
>> *The flow is split into 2 legs (handset1 to mas and mas to handset2).*
>> *MSRP session for chat or file transfer or other happens on MAS.*
>>
>>
>>> - Do you have I-CSCF enabled?
>>>
>>
>> *I think so, in /etc/clearwater/config:*
>> * # I-CSCF/S-CSCF configuration *
>>
>> *scscf=5054icscf=5052My clearwater node is an all-in-one single-node
>> instance in Amazon.*
>>
>>
>>> - Do you have Rf billing enabled?
>>>
>>
>> *No, ralf is not running (or installed I think).*
>>
>>
>>>
>>> Also, is it possible to share the full logs, right from the initial
>>> receipt of the SIP MESSAGE (maybe as an attachment rather than inline)?
>>>
>>
>> *Yes, well, . . :) see attached and I'm turning up debug now to get some
>> more . . .*
>>
>>
>>> Please let me know.
>>>
>>> Thanks for your help,
>>>
>>> Matt
>>>
>>>

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