Cisco Cisco Packet Data Interworking Function (PDIF) Documentation Roadmaps

PDN Gateway Overview

How the PDN Gateway Works ▀

Cisco ASR 5000 Series Product Overview ▄

OL-22938-01

Figure 140. Subscriber-initiated Attach (initial) Call Flow

Create Default

Bearer Rsp

Create Default

Bearer Req

Update

Bearer Rsp

Update

Bearer Req

Attach

Complete

Attach

Radio Bearer

Est Rsp

Radio Bearer

Est Req

Create Default

Bearer Rsp

PCRF

Interactions

Create Default

Bearer Req

eNodeB

MME

S-GW

PDN

P-GW

PCRF

HSS

Identity Req

Identity Rsp

Authentication/Security/ME Identity

Update Location

Insert Subscriber Data

Insert Subscriber Data Ack

Update Location Ack

Uplink Data

Downlink Data

Update Location Req

Update Location Rsp

Data

Attach Req

PDN