Indeed, such issues related to UDP fragmentation should not happen, the packets can be up to 64k, bigger than MTU size. I think linux had it for more than 20 years and most of routers are based on it.
But surprisingly, there are still some routers that cannot cope with that -- I get hit from time to time (not too often, I have to say it) with support requests related to this matter and I also wonder how that is still the case today.
Cheers, Daniel
On 01.04.19 17:18, Steve Davies wrote:
Never quite got this. UDP packets can be up to 64k, right? And fragmentation is a standard IP feature if a packet is bigger than MTU size.
Steve
On Mon, 1 Apr 2019 at 16:43, Alex Balashov <abalashov@evaristesys.com mailto:abalashov@evaristesys.com> wrote:
The customary inter-Kamailio solution is jumbo frames (if you control network end-to-end) or TCP. — Sent from mobile, with due apologies for brevity and errors. On Apr 1, 2019, at 10:33 AM, Igor Olhovskiy <igorolhovskiy@gmail.com <mailto:igorolhovskiy@gmail.com>> wrote:Hi! Was looking on some way to compress SIP signalling between internal servers. But found out, there are no some pre-defined or recommended mechanism of doing this. Yes, I found gzcompress module, but it will help only in case of big body, but not whole message itself. Like in some cases you can have 4-5 RR headers, which is already a lot of info. What I googled is 1. SigComp 2. Compact Header form As I found, SigComp is really not widely-used method and it support along opensource SIP servers/PBXes is not documented. For Compact Header form - is there any way of using Kamailio to compress message this way? Maybe also there is a way of having some intermediate proxy-layer software, that will gzip/gunzip SIP signalling in realtime? All of this actually cause info in SIP/SDP grows rapidly, unfortunately MTU size is not. Sent from Mailspring _______________________________________________ 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_______________________________________________ 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
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users