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Cisco ASR 5000
Guia Do Administrador
Cisco Cisco ASR 5000 Guia Do Administrador
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Cisco ASR 5000 Evolved Packet Data Gateway Administration Guide ▄
iii
CONTENTS
About this Guide ............................................................................................... vii
Conventions Used .................................................................................................................................. viii
Supported Documents and Resources ....................................................................................................ix
Related Common Documentation ....................................................................................................... ix
Related Product Documentation ......................................................................................................... ix
Obtaining Documentation .................................................................................................................... ix
Contacting Customer Support .................................................................................................................. x
Evolved Packet Data Gateway Overview ........................................................ 11
Product Description ................................................................................................................................ 12
Platform Requirements....................................................................................................................... 12
Licenses ............................................................................................................................................. 12
Network Deployment(s) and Interfaces .................................................................................................. 13
Network Elements .............................................................................................................................. 13
ePDG ............................................................................................................................................. 14
eNodeB .......................................................................................................................................... 14
MME ............................................................................................................................................... 14
S-GW ............................................................................................................................................. 14
P-GW ............................................................................................................................................. 14
3GPP AAA Server .......................................................................................................................... 14
HSS ................................................................................................................................................ 14
PCRF ............................................................................................................................................. 14
Logical Network Interfaces ................................................................................................................. 15
Transport Combinations ..................................................................................................................... 15
Features and Functionality ..................................................................................................................... 16
ePDG Service ..................................................................................................................................... 16
IKEv2 and IPSec Encryption .............................................................................................................. 17
Supported Algorithms .................................................................................................................... 17
x.509 Digital Certificate Handling ................................................................................................... 18
Timers ............................................................................................................................................ 18
Dead Peer Detection .......................................................................................................................... 18
Child SA Rekeying ............................................................................................................................. 19
Support for MAC Address of WiFi Access Points .............................................................................. 19
AAA Server Groups ............................................................................................................................ 19
EAP Authentication ............................................................................................................................ 19
IPv6 Capabilities ................................................................................................................................. 20
General Call Flow ............................................................................................................................... 20
P-GW Selection .................................................................................................................................. 23
Static Selection .............................................................................................................................. 23
Dynamic Selection ......................................................................................................................... 25
P-GW initiated bearer modification ................................................................................................ 26
Topology/Weight-based Selection ................................................................................................. 27
Dual Stack Support ............................................................................................................................ 27
Inter-access Handover Support ......................................................................................................... 28
Mobile Access Gateway Function ...................................................................................................... 28
IPv6 Router Advertisement Support ................................................................................................... 28
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