Cisco Cisco Tunnel Terminating Gateway (TTG) 故障排查指南

Cisco

Cisco ASR 5000 Series Packet Data Gateway/Tunnel Termination Gateway Administration Guide ▄

OL-22999-01

C

ONTENTS

About this Guide ................................................................................................. v

Conventions Used .................................................................................................................................................... vi

Contacting Customer Support ............................................................................................................................... viii

PDG/TTG Overview ............................................................................................. 9

Product Description ................................................................................................................................................ 10

Summary of TTG Features and Functions ......................................................................................................... 10

Product Specifications ............................................................................................................................................ 12

Licenses ............................................................................................................................................................. 12

Hardware Requirements .................................................................................................................................... 12

Platforms ....................................................................................................................................................... 12

Components .................................................................................................................................................. 12

Operating System Requirements ....................................................................................................................... 13

Network Deployment(s) and Interfaces .................................................................................................................. 14

The TTG in a GPRS/UMTS Data Network ....................................................................................................... 14

TTG Logical Network Interfaces (Reference Points) ........................................................................................ 15

Features and Functionality ..................................................................................................................................... 16

PDG Service ...................................................................................................................................................... 16

TTG Mode ......................................................................................................................................................... 17

IP Security (IPSec) Encryption .......................................................................................................................... 17

Multiple Digital Certificate Selection Based on APN ....................................................................................... 18

Subscriber Traffic Policing for IPSec Access .................................................................................................... 18

DSCP Marking for IPSec Access ...................................................................................................................... 19

WLAN Access Control ...................................................................................................................................... 20

RADIUS and Diameter Support ........................................................................................................................ 20

EAP Fast Re-authentication Support ................................................................................................................. 21

Pseudonym NAI Support ................................................................................................................................... 21

Multiple APN Support for IPSec Access ........................................................................................................... 21

Lawful Intercept ................................................................................................................................................ 22

IMS Emergency Call Handling ......................................................................................................................... 22

IPSec Session Recovery Support ....................................................................................................................... 22

Congestion Control ............................................................................................................................................ 23

Bulk Statistics .................................................................................................................................................... 24

Threshold Crossing Alerts ................................................................................................................................. 24

Features Not Supported in This Release ................................................................................................................. 26

How the PDG/TTG Works ..................................................................................................................................... 27

TTG Connection Establishment Call Flow ........................................................................................................ 27

Supported Standards ............................................................................................................................................... 31

3GPP References ............................................................................................................................................... 31

IETF References ................................................................................................................................................ 32

PDG/TTG Configuration ................................................................................... 33

Configuring the System to Perform as a TTG ........................................................................................................ 34

Required Information......................................................................................................................................... 34

Required Local Context Configuration Information ..................................................................................... 34

Required PDG Context Configuration Information ...................................................................................... 35

Required PDG Service Configuration Information ....................................................................................... 36