Serving GPRS Support Node (SGSN) Overview
â–€ Product Specifications
â–„ Cisco ASR 5000 Series Product Overview
System Management Cards (SMCs): Provides full system control and management of all cards within the ASR
5000. Up to two SMCs can be installed; one active, one redundant.
Packet Services Cards (PSCs): Within the chassis, PSCs (either PSC or PSC2) provide high-speed, multi-
threaded PDP context processing capabilities for 2.5G SGSN, 3G SGSN, and GGSN services. Up to 14 PSCs
can be installed, allowing for multiple active and/or redundant cards.
Switch Processor Input/Outputs (SPIOs): Installed in the upper-rear chassis slots directly behind the SMCs,
SPIOs provide connectivity for local and remote management, central office (CO) alarms, and BITS timing.
Up to 2 SPIOs can be installed: 1 active, 1 redundant.
Line Cards: Installed directly behind PSCs, these cards provide the physical interfaces from the SGSN to
various elements in the GPRS/UMTS data network. Up to 26 line cards can be installed for a fully loaded
system with 13 active PSCs, 13 in the upper-rear slots and 13 in the lower-rear slots for redundancy.
Redundant PSCs do not require line cards.
Depending on the SGSN network environment, the system supports multiple types of line cards,
simultaneously if needed:
Various types of Ethernet line cards provide IP connections:
Ethernet 10/100 line cards
Ethernet 1000 line cards
4-port Quad Gig-E line cards (QGLCs)
10-Gigabit Ethernet line cards (XGLCs)
Optical (ATM over SDH/SONET) Line Cards (OLC or OLC2) - ATM/POS OC-3 Single Mode or
Multi-Mode optical fiber line cards providing SS7 broadband signaling, e.g., SIGTRAN over ATM
via E1/DS1 (T1) signaling
Channelized Line Cards (CLC or CLC2) - STM-1/OC-3 provides Frame Relay over SDH/SONET
signaling
Redundancy Crossbar Cards (RCCs): Installed in the lower-rear chassis slots directly behind the SMCs,
RCCs utilize 5 Gbps serial links to ensure connectivity between Ethernet 10/100 or Ethernet 1000 line
cards/QGLCs and every PSC in the system for redundancy. Two RCCs can be installed to provide redundancy
for all line cards and PSCs.
Additional information, for each of the application and line cards required to support GPRS/UMTS wireless data
services, is located in the ASR 5000 Hardware Installation and Administration Guide.
Operating System Requirements
The SGSN is available for all ASR 5000s running StarOS 8.0 or higher.
System Configuration Options
An ASR 5000 SGSN system supports multiple GPRS Support Node (GSN) service applications, in any combination,
co-located within a single chassis, for example:
To Next Page
Loading...
Need help?
General
