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Product Overview 1-5
Physical and Functional Overviews
This section provides information about the Gigabit Route Processor (GRP) (see
Figure 1-2) and its use as the main system processor for the Cisco 12012.
This section provides information on the following GRP functionality:
•
Memory components
•
System status LEDs
•
Soft reset switch
•
PCMCIA slots
•
Asynchronous serial ports
•
Ethernet port
If you have a PRP, see the “Performance Route Processor” section.
Figure 1-2
Gigabit Route Processor (Front Panel View, Horizontal Orientation
Shown)
The primary functions of the GRP are as follows:
•
Downloading the Cisco IOS software to all of the 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 an IEEE 802.3, 10/100-megabits-per-second (Mbps) Ethernet port for Telnet
functionality
•
Running routing protocols
•
Building and distributing routing tables to line cards
•
Providing general system maintenance functions
SLO
T-0
GIGABIT ROUTE PROCESSOR
SLO
T-1
COLL
LINK
TX
RX
RJ-45
MII
RESET
AU
X
EJECT
H10548
CONSOLE
Summary of Contents for Gigabit Switch Router Cisco 12012
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