Cisco Cisco ASR 5700

Cisco

SGSN Administration Guide, StarOS Release 18 ▄

CONTENTS

About this Guide .............................................................................................. xxi

Conventions Used ................................................................................................................................. xxii

Supported Documents and Resources ................................................................................................ xxiii

Related Common Documentation .................................................................................................... xxiii

Related Product Documentation ...................................................................................................... xxiii

Obtaining Documentation ................................................................................................................. xxiii

Contacting Customer Support .............................................................................................................. xxiv

Serving GPRS Support Node (SGSN) Overview ............................................ 25

Product Description ................................................................................................................................ 26

Qualified Platforms ............................................................................................................................. 27

Licenses ............................................................................................................................................. 27

Network Deployments and Interfaces .................................................................................................... 28

SGSN and Dual Access SGSN Deployments .................................................................................... 28

SGSN/GGSN Deployments ............................................................................................................... 29

S4-SGSN Deployments...................................................................................................................... 30

SGSN Logical Network Interfaces ...................................................................................................... 31

SGSN Core Functionality ....................................................................................................................... 35

All-IP Network (AIPN) ......................................................................................................................... 35

SS7 Support ....................................................................................................................................... 35

PDP Context Support ......................................................................................................................... 36

Mobility Management ......................................................................................................................... 36

GPRS Attach .................................................................................................................................. 36

GPRS Detach ................................................................................................................................ 37

Paging ............................................................................................................................................ 37

Service Request ............................................................................................................................. 37

Authentication ................................................................................................................................ 38

P-TMSI Reallocation ...................................................................................................................... 38

P-TMSI Signature Reallocation ..................................................................................................... 38

Identity Request ............................................................................................................................. 38

Location Management ........................................................................................................................ 38

Session Management......................................................................................................................... 39

PDP Context Activation .................................................................................................................. 39

PDP Context Modification .............................................................................................................. 40

PDP Context Deactivation ............................................................................................................. 40

PDP Context Preservation ............................................................................................................. 40

Charging ............................................................................................................................................. 40

SGSN in GPRS/UMTS Network .................................................................................................... 40

SGSN in LTE/SAE Network ........................................................................................................... 42

Features and Functionality ..................................................................................................................... 43

3G-2G Location Change Reporting .................................................................................................... 45

Accounting Path Framework, New for 14.0........................................................................................ 45

AAA Changes To Support Location Services (LCS) Feature ............................................................ 46

APN Aliasing ...................................................................................................................................... 46

Default APN ................................................................................................................................... 46

APN Redirection per APN with Lowest Context-ID ............................................................................ 46