Refer to the passage below and then answer the question afterwards in the same language as the passage: Passage: GTP-U is, in effect a relatively simple IP based tunneling protocol which allows many tunnels between each set of end points. Painoshandiswa muUMTS, munhu wese anenge achinyoresa achava ne tunnel imwe chete kana kupfuura, imwe yePDP imwe neimwe yavanenge vari nayo, pamwe nekuva ne tunnels dzakaparadzana dzekubatana kwakasiyana nehutano hwakasiyana hwebasa. Mubvunzo: Ndeupi rudzi rwemukati uyo anenge achinyoresa achishandisa UMTS?
mugero mumwe kana anopfuura