[Freeswitch-users] Delay in Options Packets

[Jai Rangi]

That's what I thought initially. There are around 1000 registrations
(mostly TCP) (LUA + Mysql) with timeout of 15 minutes. There are lots of
BLFs, subscribes and shared lines, and multiple registrations (average of
3.5, so total of 3500 registrations points). We do ping for keepalive every
3 minutes. I guess increasing ping time and registration timeout to 30
minutes will help.
Thoughts?

-Jai



On Mon, Nov 25, 2019 at 4:33 PM Mike Jerris <mike at freeswitch.org> wrote:

> Our code to handle options couldn’t be much simpler.  If you are seeing
> massive delays the only thing I would guess would be that there is some
> sort of massive ddos type attack causing significant queuing of inbound
> requests or a register storm and your registrations handlers are getting
> behind.  Take a look at logging and sip traffic around the same time for
> clues on what else might be happening on this sip profile at the same time.
>
> On Nov 25, 2019, at 12:22 PM, Jai Rangi <jprangi at gmail.com> wrote:
>
> Hello,
>
> Every now and then we see long delay in response for options. Example in
> the trace below free-switch took 44 seconds before it send 200 OK.
>
> What will be best way to troubleshoot this?
>
> U 2019/11/25 10:49:27.185325 192.168.1.1:49020 -> 192.168.1.5:5060
> OPTIONS sip:100000 at 192.168.1.5 SIP/2.0.
> Via: SIP/2.0/UDP 192.168.2.1:49020;branch=z9hG4bKhjhs8ass877.
> Max-Forwards: 70.
> To: sip:100000 at 192.168.1.5.
> From: sip:1000 at 192.168.2.1:49020;tag=cbzxq0.
> Call-ID: hcrtfi at 192.168.2.1.
> CSeq: 1 OPTIONS.
> Accept: application/sdp.
> Content-Length: 0.
> .
>
> U 2019/11/25 10:49:51.819959 192.168.1.5:5060 -> 192.168.1.1:49020
> SIP/2.0 200 OK.
> Via: SIP/2.0/UDP 192.168.2.1:49020
> ;branch=z9hG4bKhjhs8ass877;received=192.168.1.1.
> From: <sip:1000 at 192.168.2.1:49020>;tag=cbzxq0.
> To: <sip:100000 at 192.168.1.5>;tag=aUUQj55rcetma.
> Call-ID: hcrtfi at 192.168.2.1.
> CSeq: 1 OPTIONS.
> Contact: <sip:192.168.1.5:5660>.
> User-Agent: Monitor.
> Accept: application/sdp.
> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER,
> REFER, NOTIFY, PUBLISH, SUBSCRIBE.
> Supported: path, replaces.
> Allow-Events: talk, hold, conference, presence, as-feature-event, dialog,
> line-seize, call-info, sla, include-session-description, presence.winfo,
> message-summary, refer.
> Content-Length: 0.
>
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>
> _________________________________________________________________________
>
> The FreeSWITCH project is sponsored by SignalWire https://signalwire.com
> Enhance your FreeSWITCH install with disruptive priced SMS and PSTN
> services.
> Build your next product on our scalable cloud platform.
>
> Join our online community to chat in real time
> https://signalwire.community
>
> Professional FreeSWITCH Services
> sales at freeswitch.com
> https://freeswitch.com
>
> Official FreeSWITCH Sites
> https://freeswitch.com/oss
> https://freeswitch.org/confluence
> https://cluecon.com
>
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