Performance Route Processor - Cisco CRS-1 System Description

Chapter 6 Route Processor
Figure 6-3
Midplane

Performance Route Processor

The Performance Route Processor (PRP) is also available for the Cisco CRS 4-slot line card chassis. The
PRP provides enhanced performance for both route processing and system controller functionality.
Two PRP cards are required per chassis for a redundant system. The PRP can be inserted in either of the
two dedicated RP slots in the Cisco CRS 4-slot line card chassis. When two PRPs are installed, one PRP
is the "Active" RP and the other is the "Standby" RP.
Note A chassis may not be populated with a mix of RP and PRP cards. Both route processor cards should be
of the same type (RP or PRP).
Figure
OL-10805-10
Route Processor Architecture Diagram
LC FE
links
To
fabric
Q
CPU
links
IF
From
fabric
Fabric
connection
Figure 6-4 shows the PRP card.
Cisco CRS Carrier Routing System 4-Slot Line Card Chassis System Description
SFP
module
CTL GE link
FE/GE
CTL GE link
switch
PCI
MEM
CPU
CTL
Aux and console
Management GE link
Card presence detect
FPGA
RP mastership
PROM presence
Performance Route Processor
IDE
PCMCIA
2
6-5