для Cisco Cisco ASR 5500
Serving GPRS Support Node (SGSN) Overview
Network Deployments and Interfaces ▀
SGSN Administration Guide, StarOS Release 17 ▄
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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.