Troubleshooting guide

1-4
Cisco PGW 2200 Softswitch Release 9.8 Operations, Maintenance, and Troubleshooting Guide
OL-0800-14
Chapter 1 Cisco PGW 2200 Softswitch Platform Overview
Cisco PGW 2200 Softswitch Software Architecture
Figure 1-1 Cisco PGW 2200 Softswitch Platform Connectivity
Cisco PGW 2200 Softswitch Software Architecture
This section describes the major subsystems in the Cisco PGW 2200 Softswitch software, which are
illustrated in Figure 1-2. The major subsystems are:
• Input/Output Subsystem, page 1-6
• Agent Management Subsystem, page 1-7
• Fault Tolerance Subsystem, page 1-8
• Execution Environment Process Shell, page 1-9
• Call Engine Process, page 1-9
Active PGW
100Base T
Switch
Switch
100Base T
Ethernet
10BT/100BT
Ethernet active
Ethernet standby
Supervisor
engine
Fast
Ethernet
100BT
Cisco
ITP
SS7 links
to STP
Supervisor
engine
Ethernet
10BT/100BT
Supervisor
engine
Fast
Ethernet
100BT
Supervisor
engine
Standby PGW
100Base T 100Base T
Cisco
ITP-L
SS7 links
to STP
SS7 links
to STP
Cisco
ITP-L
SS7 links
to STP
203201