Hi!

as you might have seen, r1804+r1085 introduces multiple SIP/UDP receivers. This has some advantages in terms of performances, especially for signaling only applications.

Whereby packet reordering could potentially happen in any IP networks, it is not very likely to happen under "normal" conditions. But please beware that using the multithreaded UDP server could introduce some packet reordering due to thread scheduling.

For example, let's think about the basic UAC scenario in sipp. It will build a new call, and tear it down immediately. In this case, it is now possible that the ACK request gets passed to the session after the BYE requests.

I hope this helps understanding possible changes implied by this enhancement.


Regards,
Raphael.
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