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| Control Plane MS - SGSN in A/Gb mode |
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Control Plane MS - SGSN in Iu mode
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Wednesday, July 16, 2014
GPRS Session Management Cause Codes
Cause code berikut ada saat prosess Session Management (SM) antara MS/UE dengan SGSN. SM terjadi saat prosedur PDP context activation dan PDP context deactivation.
SM berada di layer paling atas control plane untuk Gb dan Iu, seperti gambar berikut:
GTP Cause Codes
Dalam GTP request, cause value menunjukkan alasan request tersebut. Cause value tersebut akan dimasukkan dalam GTP request message.
Dalam GTP response, cause value menunjukkan acceptence / rejection dari request yang terkait. Selain itu cause value dapat menunjukkan penyebab tertentu untuk request yang terkait. Cause value tersebut akan dimasukkan dalam GTP response message.
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