Chapter 1 Cisco 12010, Cisco 12410, and Cisco 12810 Series Router Overview
Line Card and Route Processor Overview
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Cisco 12010, Cisco 12410, and Cisco 12810 Router Installation and Configuration Guide
OL-11496-01
Each system includes at least one RP that performs a variety of functions
including the following:
•
Downloads the Cisco IOS software to all installed line cards at power-on.
•
Processes the network routing protocols and distributes updates to the Cisco
Express Forwarding (CEF) tables on the line cards.
•
Communicates with the line cards, either through the switch fabric or the
maintenance bus (MBus):
–
The switch fabric connection is the main data path for distributing
routing tables, as well as packets passed, between the RP and the line
cards.
–
The MBus connection allows the RP to download a system bootstrap
image, collect or load diagnostic information, and perform general,
internal system maintenance operations.
Gigabit Route Processor Overview
The GRP uses an IDT R5000 Reduced Instruction Set Computing (RISC) CPU
that runs at an external bus clock speed of 100 MHz and has an internal clock
speed of 200 MHz.
identifies the connectors and LEDs on the GRP front panel.
Figure 1-9
Gigabit Route Processor Front Panel
1
PCMCIA flash card slots, eject buttons, and
slot LEDs
5
RJ-45 Ethernet port and data status LEDs
2
Reset button
6
MII Ethernet connection
3
Auxiliary serial port
7
Alphanumeric message displays
4
Console serial port
SLO
T-
0
GIGABIT ROUTE PROCESSOR
SLO
T-
1
COLL
LINK
TX
RX
RJ-45
MII
RESET
AU
X
CONSOLE
EJECT
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Summary of Contents for 12010 series
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