[OpenSIPS-Users] Automatic support for UDP->TCP when MTU size reached?

[Liviu Chircu]

Hi Gavin,

No, there is no automated way of accomplishing that with OpenSIPS so 
far. You may, however, use the "$ml" (message length) pseudo-var [1] and 
create such logic in your config script.

[1]: http://www.opensips.org/Documentation/Script-CoreVar-2-2#toc52

Liviu Chircu
OpenSIPS Developer
http://www.opensips-solutions.com

On 29.02.2016 21:34, Gavin Murphy wrote:
> Hi all,
>
>     I did a search on this and the most recent discussion I saw was 
> from 2010, so I figured I would pose the question again: is there a 
> way to have OpenSIPS automatically adjust the transport from UDP to 
> TCP when the request size is within 200 bytes of the MTU size, as per 
> section 18.1.1 of RFC 3261? I understand that NAPTR could be used to 
> select the most desirable transport based on the destination, but what 
> about based on message size? If it isn't supported automatically, is 
> there a way to determine the message size just ahead of it being 
> relayed so as to perhaps be able to alter the transport?
>
> Thanks,
>
> Gavin
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users