Cisco Cisco Packet Data Gateway (PDG) Guide De Dépannage
Multimedia Broadcast and Multicast Service
Introduction ▀
Cisco ASR 5000 Series Enhanced Feature Configuration Guide ▄
OL-22983-01
Figure 38. MBMS Reference Architecture in UMTS network
Iu
Iu/Gb
Gn/Gp
GERAN
UTRAN
SGSN
GGSN
Gr
HLR
Multicast
Broadcast
Source
Gmb
Multicast Broadcast
Service Center
(BM-SC)
Gi
ASP/
Content Provider
Gi
PDN/Internet
The GGSN provides the following functionality to perform MBMS services:
serves as an entry point for IP multicast traffic as MBMS data. It provides establishment of bearer plan and
teardown of the established bearer plan upon notification from the BM-SC.
provides functionality to receive MBMS specific IP multicast traffic and to route this data to the proper GTP
tunnels set-up as part of the MBMS bearer service.
provides features, that are not exclusive to MBMS, for the MBMS bearer service, like charging data collection,
flow-based charging, optional message screening etc.
MBMS is able to use NPU assisted MBMS data flow processing on ASR 5000 platforms so that system can relieve the
Session Manager to provide better performance and processing. Currently with NPU assisted data processing, ASR
5000 can support 225 SGSNs per MBMS Bearer Service for downlink of MBMS data.
Session Manager to provide better performance and processing. Currently with NPU assisted data processing, ASR
5000 can support 225 SGSNs per MBMS Bearer Service for downlink of MBMS data.