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Cisco ASR 9000 Series Aggregation Services Router Overview and Reference Guide
OL-17501-09
Chapter 2 Functional Description
Route Processor Card
Figure 2-12
RP Component Interconnections
Figure 2-13
FC Component Interconnections
Processor-to-Processor Communication
The RSP/RP card communicates with the control processors on each line card through the Ethernet Over
Backplane Channel (EOBC) Gigabit Ethernet switch. This path is for processor-to-processor
communication, such as IPC (InterProcess Communication). The Active RSP/RP card also uses the EOBC
to communicate to the Standby RSP/RP card, if installed.
Route Processor/Fabric Interconnect
The RSP card has a fabric interface chip (FIC) attached to the switch fabric and linked to the Route
Processor through a Gigabit Ethernet interface through a packet diversion FPGA. This path is used for
external traffic diverted to the RSP card by line card network processors.
RP
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