Cisco PRP-1= Installation And Configuration Manual page 6

Product Overview
Figure 2 PRP-2, Front Panel View
PRP Functions
Performance Route Processor Installation and Configuration Guide
6
Figure 2 shows the front panel view of the PRP-2.
The PRP-2 is available as Product Number PRP-2 or PRP-2=, which includes one
PRP with 1 G of synchronous dynamic random-access memory (SDRAM) and
one 64-MB advanced technology attachment (ATA) Flash disk. A redundant PRP
(Product Number PRP-2/R) is also available.
The PRP-1 for the Cisco 12000 Series Router includes the following primary
functions:
Loading Cisco IOS software on all installed line cards at power up
•
Providing a console (terminal) port for router configuration
•
Providing an auxiliary port for other external equipment (such as modems)
•
Providing two IEEE 802.3, 10/100-megabits-per-second (Mbps) Ethernet
•
ports for Telnet functionality
Running routing protocols
•
Building and distributing routing tables to line cards
•
Providing general system maintenance functions
•
Communicating with line cards either through the switch fabric or through
•
the maintenance bus (MBus). The MBus connection allows the PRP to
download a system bootstrap image, collect or load diagnostic information,
and perform general, internal system maintenance operations. The switch
fabric connection is the main data path for routing table distribution as well
as for packets that are sent between line cards and the PRP.
ETH 0 ETH 1 BITS 0 BITS 1 AUX CONSOLE ETH 2
PERFORMANCE ROUTE PROCESSOR 2
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