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<div name="messageBodySection">Idea is to fit whole packet in MTU size.
<div>Mainly cause fragmentation is not best option in case of UDP. Causes retransmissions on a high CPS values. </div>
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Regards, Igor</div>
<div name="messageReplySection">On Apr 1, 2019, 6:20 PM +0300, Steve Davies <steve-lists-srusers@connection-telecom.com>, wrote:<br />
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<div dir="ltr">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.
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<div>Steve</div>
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<div dir="ltr" class="gmail_attr">On Mon, 1 Apr 2019 at 16:43, Alex Balashov <<a href="mailto:abalashov@evaristesys.com">abalashov@evaristesys.com</a>> wrote:<br /></div>
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<div dir="auto">The customary inter-Kamailio solution is jumbo frames (if you control network end-to-end) or TCP.<br />
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<div id="gmail-m_2722708156775202843AppleMailSignature" dir="ltr">—
<div>Sent from mobile, with due apologies for brevity and errors.</div>
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On Apr 1, 2019, at 10:33 AM, Igor Olhovskiy <<a href="mailto:igorolhovskiy@gmail.com" target="_blank">igorolhovskiy@gmail.com</a>> wrote:<br />
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<div>Hi!</div>
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<div>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.</div>
<div>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.</div>
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<div>What I googled is</div>
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<div>SigComp</div>
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<div>Compact Header form</div>
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<div>As I found, SigComp is really not widely-used method and it support along opensource SIP servers/PBXes is not documented.</div>
<div>For Compact Header form - is there any way of using Kamailio to compress message this way?</div>
<div>Maybe also there is a way of having some intermediate proxy-layer software, that will gzip/gunzip SIP signalling in realtime?</div>
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<div>All of this actually cause info in SIP/SDP grows rapidly, unfortunately MTU size is not.</div>
<img class="gmail-m_2722708156775202843mailspring-open" alt="Sent from Mailspring" width="0" height="0" style="border: 0px; width: 0px; height: 0px;" src="https://link.getmailspring.com/open/AFC94AD0-AEE3-4FA1-B652-7AE139FA7504@getmailspring.com?recipient=c3ItdXNlcnNAbGlzdHMua2FtYWlsaW8ub3Jn" /></div>
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