Cisco 12008, Installation And Configuration Manual, Page: 48 / 382

Overview of the Cisco 12008
Cisco 12008 Gigabit Switch Router Installation and Configuration Guide 1-26
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Asynchronous serial ports
•
Ethernet port
If you have a PRP, see the Performance Route Processor section.
The faceplate of the GRP is shown in Figure 1-9.
Figure 1-9 GRP Faceplate (Horizontal Orientation Shown)
It is recommended that you install the GRP in the left-most slot (slot 0) in the upper card
cage. However, you need not abide by this recommendation. You can install the GRP in any
upper card cage slot, except for the two slots in the middle in the upper card cage (CSC0
and CSC1), which are reserved for the CSCs.
The GRP performs the following functions:
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Downloading the Cisco IOS software to all of the installed line cards at power up
•
Providing a console (terminal) port for router configuration
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Providing an auxiliary port for other external equipment (such as modems)
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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