Hello,
the connection state is OK in all outputs, so not seen as closed by Kamailio.
Can you get the output of the netstat for that connection after is supposed to be closed to see its state there?
Cheers, Daniel
On 11.06.19 12:17, Daniel-Constantin Mierla wrote:
Hello,
I didn't get the time to look at. It was a long weekend in Germany, with Monday being public holiday. Not sure if I get to it today, but hope to get time in the next few days.
Cheers, Daniel
On 11.06.19 07:56, R, Rajkumar (Raj) wrote:
Did the shared tcp stats help? Awaiting your inputs on this.
thanks,
raj
*From:*sr-users sr-users-bounces@lists.kamailio.org *On Behalf Of *R, Rajkumar (Raj) *Sent:* Friday, June 7, 2019 10:44 PM *To:* miconda@gmail.com; Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org *Subject:* Re: [SR-Users] TCP reset behavior
Hi Daniel,
Please find attached stats output captured every 2 seconds for the entire duration of test (i.e., Start of registration from client till the connection towards client is reset by kamailio after 17mins approximately). I had used ‘kamcmd’ instead of ‘kamctl’ for same command arguments.
Setup:
10.27.117.55 (Client) --- Kamailio (10.1.4.55) ---- Backend server (10.2.8.70)
Summary of events executed/observed during the test:
- Once the client is registered successfully to the backend, turned off WiFi connection at the client side (time 13:07.05 UTC 2019).
- After OPTIONS msg time out for response from the client, backend closes the TCP connection towards kamailio ( around time 13:10:39),
- TCP connection towards client side is reset at 13:24:30 (i.e., 17 minutes since the WiFi is turned off)
- In wireshark, see re-transmission of a TCP packet from kamailio for about 15 minutes until connection release.
thanks,
raj
*From:*Daniel-Constantin Mierla <miconda@gmail.com mailto:miconda@gmail.com> *Sent:* Friday, June 7, 2019 6:14 PM *To:* Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org mailto:sr-users@lists.kamailio.org>; R, Rajkumar (Raj) <rajkumaradass@avaya.com mailto:rajkumaradass@avaya.com> *Subject:* Re: [SR-Users] TCP reset behavior
Hello,
can you reproduce the case and then get the output of the next commands:
kamctl rpc core.tcp_list
kamctl rpc core.tcp_options
kamctl rpc core.tcp_info
Cheers, Daniel
On 06.06.19 18:53, R, Rajkumar (Raj) wrote:
Hi All, In our setup running kamailio (alpine image) in stateless mode and have following TCP config set. After client registers to the backend see two TCP connections created – one towards the client and the other towards the backendserver. If there’s a abrupt network disconnect either at the client side or at the backend side, do not see TCP reset happening from kamailio as per the config. Per below config expected after 120seconds( = [tcp_keepidle] + ( [tcp_keepintvl * tcp_keepcnt] ) instead it keeps resending TCP keepalive packets at varying intervals for varying duration length(like 6mins, 14mins..) before resetting the TCP connections. Also want to mention that we are not using TCPOPS module here. I am trying to achieve consistent duration for TCP reset in kamailio. Could you please point me if I have missed anything here? */Setup:/* Client ---- Kamailio (stateless mode) ---- Backend server *TCP Config:* * * *tcp_connection_lifetime = 3600* tcp_accept_aliases = no tcp_async = yes tcp_connect_timeout = 10 tcp_crlf_ping = yes *tcp_keepalive = yes* *tcp_keepcnt = 3* *tcp_keepidle = 30* *tcp_keepintvl = 30 # Total 2 mins - 30+(30*3)=120 sec* tcp_linger2 = 30 tcp_rd_buf_size = 65536 tcp_send_timeout = 10 thanks, raj _______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users <https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.kamailio.org_cgi-2Dbin_mailman_listinfo_sr-2Dusers&d=DwMD-g&c=BFpWQw8bsuKpl1SgiZH64Q&r=LDE-f1bLxMPmcrsp8ONITcznNqEIlhe9ffKEZPeB7EI&m=m1fGDJFl23Vq-awSnjgML3TymzSQRBOSTCALAsyAHNM&s=lQLR6IfVOO2CWDL4iEDldpjFjZfxQFyfKeFd1pGZkoY&e=>-- Daniel-Constantin Mierla -- www.asipto.com https://urldefense.proofpoint.com/v2/url?u=http-3A__www.asipto.com&d=DwMD-g&c=BFpWQw8bsuKpl1SgiZH64Q&r=LDE-f1bLxMPmcrsp8ONITcznNqEIlhe9ffKEZPeB7EI&m=m1fGDJFl23Vq-awSnjgML3TymzSQRBOSTCALAsyAHNM&s=2-7juQBEXrjA_PjfpiIZ0JvAZxWKngyC0vcVyP1GmUs&e= www.twitter.com/miconda https://urldefense.proofpoint.com/v2/url?u=http-3A__www.twitter.com_miconda&d=DwMD-g&c=BFpWQw8bsuKpl1SgiZH64Q&r=LDE-f1bLxMPmcrsp8ONITcznNqEIlhe9ffKEZPeB7EI&m=m1fGDJFl23Vq-awSnjgML3TymzSQRBOSTCALAsyAHNM&s=_qINzlBw2yRKQ3ke2UwXsjTQ7lKWI25XpjOlzw9gPqA&e= -- www.linkedin.com/in/miconda https://urldefense.proofpoint.com/v2/url?u=http-3A__www.linkedin.com_in_miconda&d=DwMD-g&c=BFpWQw8bsuKpl1SgiZH64Q&r=LDE-f1bLxMPmcrsp8ONITcznNqEIlhe9ffKEZPeB7EI&m=m1fGDJFl23Vq-awSnjgML3TymzSQRBOSTCALAsyAHNM&s=TsFAXfvNfu1k1Kw-F4937svidQSEfPMgK4VmorRPn54&e=
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