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GTPP Interface Administration and Reference, StarOS Release 19 ▄

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CONTENTS

About this Guide ............................................................................................... vii

Conventions Used .................................................................................................................................. viii

Supported Documents and Resources ....................................................................................................ix

Related Common Documentation ....................................................................................................... ix

Related Product Documentation ..................................................................................................... ix

Obtaining Documentation ................................................................................................................ x

Contacting Customer Support ..................................................................................................................xi

GTPP Accounting Overview ............................................................................ 13

GTPP Interface Overview ....................................................................................................................... 14

CDR Transport by GTPP ................................................................................................................... 15

CDR Push Functionality ..................................................................................................................... 15

Automatic Transfer of Stranded CDRs on ICSR ................................................................................ 16

Limitations ...................................................................................................................................... 16

How this Feature Works ................................................................................................................. 16

Path Protocol .......................................................................................................................................... 17

GTPP Message Types ........................................................................................................................... 18

Usage of GTPP Header in Charging .................................................................................................. 19

Information Elements ......................................................................................................................... 20

GTPP Messages .................................................................................................................................... 21

Node Alive Request............................................................................................................................ 21

Node Alive Response ......................................................................................................................... 21

Redirection Request ........................................................................................................................... 22

Redirection Response ........................................................................................................................ 23

Data Record Transfer Request .......................................................................................................... 24

Information Elements in Data Record Transfer Request ............................................................... 24

Packet Transfer Command IE ....................................................................................................... 24

Data Record Packet IE .................................................................................................................. 25

Sequence Numbers of Released Packets IE................................................................................. 25

Sequence Numbers of Canceled Packets IE................................................................................. 26

Private Extension IE ....................................................................................................................... 26

Data Record Transfer Response ....................................................................................................... 26

Handling Error Response Cause ....................................................................................................... 27

Charging Characteristics ........................................................................................................................ 28

Charging Records ................................................................................................................................... 30

Zero Volume CDR Suppression ......................................................................................................... 30

File Format for CDRs ......................................................................................................................... 31

Evolved Packet Data Gateway Call Detail Records (ePDG-CDRs) .................................................. 33

ePDG-CDR Format ........................................................................................................................ 33

Standard G-CDRs .............................................................................................................................. 33

G-CDR Format ............................................................................................................................... 33

Enhanced G-CDRs ............................................................................................................................. 33

eG-CDR Format ............................................................................................................................. 34

PDN Gateway Call Detail Records (PGW-CDRs) .............................................................................. 34

PGW-CDR Format ......................................................................................................................... 34

Serving Gateway Call Detail Records (SGW-CDRs) ......................................................................... 34