DSR not sending 100 percent messages to specific node.
We have an issue where DEA is skipping sending ULR message to our IPN. Here are details -
In DEA we have a route to send incoming ULR message coming from external interface to IPN first and then gets a redirection 3006 response which finally is sent to HSS by our DEA.
There are some cases where we have observed that DEA would send the ULR to IPN and if IPN gives a response other than 3006 for e.g. gives response as 5012 unable to comply, it would send the error to the external peer. Then the second time after 10 seconds if the same request comes and IPN responds 5012 again it would send the same message back to peer. This is fine but when the third request after 10-15 seconds comes again, the DEA skips the IPN and sends it to HSS. This should not be the case. Anyone experienced