Cisco Cisco ASR 5000
Serving GPRS Support Node (SGSN) Overview
Network Deployments and Interfaces ▀
SGSN Administration Guide, StarOS Release 18 ▄
Figure 1.
2.5G & 3G Dual Access Architecture
SGSN/GGSN Deployments
The co-location of the SGSN and the GGSN in the same chassis facilitates handover. A variety of GSN combos is
possible, 2.5G or 3G SGSN with the GGSN.
possible, 2.5G or 3G SGSN with the GGSN.