Hi Kevin,
If the SIP request are perfectly identical, they may be re-transmissions
- what is the time between the packets ?
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 10/20/2017 12:41 AM, Kevin Stewart via Users wrote:
I am having some issues with intermittent packet duplication in the
network.
what this looks like currently is
opensips gets 2 identical Invite packets.
opensips processes them returning 2 401's with 2 different nonce values.
opensips then gets 2 Authed Invite packets
processes the first one and invalidates the nonce.
another thread is simultaneously processing the other one and sees the
invalid nonce and returns a 401.
the first thread forwards the valid invite and 100's to the A party
and eventual returns a 180 but the A party ignores this because it got
a terminal response (401) for that invite.
I was wondering is there a mechanism do identify duplicate CSeq
numbers in a session so we can drop them in opensips?
Yes I am trying to get the source of the duplication identified but it
is currently breaking authentication and call setup.
Kevin
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