GTP-U - GPRS Tunnelling Protocol User

GPRS Tunnelling Protocol – User plane messages are exchanged between GSN (Gateway Support Node) pairs or GSN/ RNC (Radio Network Controller) pairs in a path. The user plane messages are used to carry user data packets, and signalling messages for path management and error indication.


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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