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Unrecognised Transaction ID

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karthikm
Unrecognised Transaction ID

I get Unrecognised Transaction ID error for LU in our VLR and LU is failing. Sometimes LU is successful for same IMSI under same VLR. On comparing both traces, i could not see any difference in OTID and DTID combination. Can anyone suggest me other possibilities?

alaa.alatrash
can you provide us with the

can you provide us with the traces?

--Best RegardsAlaa' Al Atrash[email protected]

muslimshady
HI, I also want to know the

HI, I also want to know the solution for this concern. I am also experiencing it in our network right now
thanks

kadambi
Ethereal Traces

Please send the ethereal traces if you have.

m.hald
there are dozent of

there are dozent of possibilities.

one maybe a error in the GlobalTitle Routing or in the Global Title Configuration of a Server

If there Service Global Titles are used to LoadBlance over Locations/Servers and then the Server should Reply with it's "Hardware Global Title" rather with the "Service Global Title", maybe a "Hardware Global Title" is LoadBalanced (but shouldn't) .

There are various other reasons.

Who sents it ?
is there a dialogue before it ?

Trace would answer all this.

Marcel Haldemann
Convercom AG
http://convercom.com/Englisch/index_E.htm
Our IN Solution: CoCoIN: Intelligent Network: http://convercom.com/Englisch/carriers_E.htm

kadambi
ISD Delay could be cause

Did you notice ISD/ISD ack delay between successful and failed LU? LU may also time out because of delayed response from HLR/VLR and result in active transaction getting deleted. So the system may not understand the transaction and respond with unrecognized transaction ID.