Duba zuwa ga nassi a kasa, sa'an nan kuma amsa tambaya daga baya a cikin wannan harshe kamar yadda nassi: Passage: The GTP-C yarjejeniya ne da iko sashe na GTP misali. A lokacin da wani abokin ciniki buƙatun a PDP mahallin, da SGSN zai aika da ƙirƙirar PDP mahallin request GTP-C sako zuwa GGSN bada cikakken bayani game da abokin ciniki ta request. A GGSN zai sa'an nan amsa tare da ƙirƙirar mahallin PDP martani GTP-C sako wanda zai ko dai ba da cikakken bayani game da PDP mahallin zahiri kunna ko zai nuna wani gazawar da kuma ba da dalilin da cewa gazawar. Wannan shi ne wani UDP sako a kan tashar jiragen ruwa 2123. Tambaya: Abin da aka bai wa mai biyan kuɗi a lokacin da aka nuna gazawar?
Dalilin wannan gazawar