Cisco ASR 5000 Series - SCM in a GSM;UMTS Data Network Deployment

Session Control Manager Overview
Network Deployments and Interfaces ▀
Cisco ASR 5000 Series Product Overview ▄
OL-22938-02
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.
Figure 147. GSM/UMTS CSCF/A-BG/GGSN SCM Deployment Example
CSCFs
LRF
PCRF
/ / -CSCFE/I P S /
A-BG / GGSN
Mw
Gm
UMTS Access Network
Dx
(S / I-CSCF)
Sh
(S-CSCF)
HSS
C
()
x
S / I-CSCF
Rx (P-CSCF / A-BG)
OFCS
Rf
MI
(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.
SIP Interfaces
The following table provides descriptions of SIP interfaces supported by the SCM in a GSM/UMTS network
deployment.
Table 82. SIP Interfaces in a GSM/UMTS Network
Interface
Description