Cisco Cisco Packet Data Interworking Function (PDIF) Documentation Roadmaps
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Session Control Manager Overview
Network Deployments and Interfaces ▀
Cisco ASR 5000 Series Product Overview ▄
OL-22938-01
SCM in a GSM/UMTS Data Network Deployment
CSCF / A-BG / GGSN Deployment
The SCM is designed to function within a UMTS GGSN network. As shown in following figure, the SCM supports a
number of interfaces used to communicate with other components in an IMS environment and supports the interface
used to bridge the GGSN network.
number of interfaces used to communicate with other components in an IMS environment and supports the interface
used to bridge the GGSN network.
Figure 146. GSM/UMTS CSCF/A-BG/GGSN SCM Deployment Example
CSCFs
LRF
PCRF
/ / -CSCF
E/I P S
/
A-BG / GGSN
Mw
Gm
UMTS Access Network
Dx
(S / I-CSCF)
Sh
(S-CSCF)
(S-CSCF)
HSS
C
(
(
)
x
S / I-CSCF
Rx (P-CSCF / A-BG)
OFCS
Rf
MI
(E-CSCF)
(E-CSCF)
Logical Network Interfaces (Reference Points)
Interfaces, used to support IMS in a UMTS network, can be defined within two categories: SIP and DIAMETER. The
SCM incorporates standards-based interfaces for both SIP and DIAMETER network architectures.
SCM incorporates standards-based interfaces for both SIP and DIAMETER network architectures.
SIP Interfaces
The following table provides descriptions of SIP interfaces supported by the SCM in a GSM/UMTS network
deployment.
deployment.
Table 82. SIP Interfaces in a GSM/UMTS Network
Interface
Description