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SGSN Administration Guide, StarOS Release 17 ▄
iii
CONTENTS
About this Guide .............................................................................................. xix
Conventions Used ...................................................................................................................................xx
Supported Documents and Resources .................................................................................................. xxi
Related Common Documentation ...................................................................................................... xxi
Related Product Documentation ........................................................................................................ xxi
Obtaining Documentation ................................................................................................................... xxi
Contacting Customer Support ............................................................................................................... xxii
Serving GPRS Support Node (SGSN) Overview ............................................ 23
Product Description ................................................................................................................................ 24
Qualified Platforms ............................................................................................................................. 25
Licenses ............................................................................................................................................. 25
Network Deployments and Interfaces .................................................................................................... 26
SGSN and Dual Access SGSN Deployments .................................................................................... 26
SGSN/GGSN Deployments ............................................................................................................... 27
S4-SGSN Deployments...................................................................................................................... 28
SGSN Logical Network Interfaces ...................................................................................................... 29
SGSN Core Functionality ....................................................................................................................... 33
All-IP Network (AIPN) ......................................................................................................................... 33
SS7 Support ....................................................................................................................................... 33
PDP Context Support ......................................................................................................................... 34
Mobility Management ......................................................................................................................... 34
GPRS Attach .................................................................................................................................. 34
GPRS Detach ................................................................................................................................ 35
Paging ............................................................................................................................................ 35
Service Request ............................................................................................................................. 35
Authentication ................................................................................................................................ 36
P-TMSI Reallocation ...................................................................................................................... 36
P-TMSI Signature Reallocation ..................................................................................................... 36
Identity Request ............................................................................................................................. 36
Location Management ........................................................................................................................ 36
Session Management......................................................................................................................... 37
PDP Context Activation .................................................................................................................. 37
PDP Context Modification .............................................................................................................. 38
PDP Context Deactivation ............................................................................................................. 38
PDP Context Preservation ............................................................................................................. 38
Charging ............................................................................................................................................. 38
SGSN in GPRS/UMTS Network .................................................................................................... 38
SGSN in LTE/SAE Network ........................................................................................................... 40
Features and Functionality ..................................................................................................................... 41
3G-2G Location Change Reporting .................................................................................................... 43
Accounting Path Framework, New for 14.0........................................................................................ 43
AAA Changes To Support Location Services (LCS) Feature ............................................................ 44
APN Aliasing ...................................................................................................................................... 44
Default APN ................................................................................................................................... 44
APN Redirection per APN with Lowest Context-ID ............................................................................ 44
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