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CHAPTER
2-1
Cisco ASR 9000 Series Aggregation Services Router Overview and Reference Guide
OL-17501-09
2
Functional Description
This chapter provides a functional description of the Cisco ASR 9000 Series Router, Route Switch
Processor (RSP) card, Route Processor (RP) card, Fabric Controller (FC) card, Ethernet line cards,
power and cooling systems, and subsystems such as management, configuration, alarms, and
monitoring.
• Router Operation, page 2-1
• Route Switch Processor Card, page 2-5
• Route Processor Card, page 2-8
• Fabric Controller Card, page 2-19
• Ethernet Line Cards, page 2-21
• Modular Line Cards, page 2-44
• Power System Functional Description, page 2-50
• Cooling System Functional Description, page 2-71
• System Management and Configuration, page 2-86
Router Operation
The ASR 9000 Series Routers are fully distributed routers that use a switch fabric to interconnect a
series of chassis slots, each of which can hold one of several types of line cards. Each line card in the
Cisco ASR 9000 Series has integrated I/O and forwarding engines, plus sufficient control plane
resources to manage line card resources. Two slots in the chassis are reserved for RSP/RP cards to
provide a single point of contact for chassis provisioning and management.
Figure 2-1 shows the platform architecture of the Cisco ASR 9010 Router, Cisco ASR 9006 Router, and
Cisco ASR 9904 Router.