Information Technology Reference
In-Depth Information
Label the Internal Components of a Router Exercise
Choose the correct label description for each number shown in Figure 1-2.
Figure 1-2
Logical Diagram of the Internal Components of an 1841 Cisco Router
10
1
Aux
2
Console
7
3
CPU
M860
Processor
User Interface
Dual UART
Slot0
HWIC/WIC/VWIC
Compact Flash
Memory Card
System
Bus
CPU Bus
4
8
Flash
32, 64 or 128 MB
default is 32 MB
System
Control
ASIC
Slot1
HWIC/WIC/VWIC
5
Boot ROM
9
SDRAM
DIMMs
128 MB
(Expandable to
348 MB)
FastEthernet0/0
6
NVRAM
2 or 4 MB
Flash Memory
FastEthernet0/1
Figure 1-2 Label Description:
3
Universal asynchronous receiver/transmitter, which controls the dual access through the con-
sole and auxiliary ports
5
Holds the bootstrap program, ROM monitor, and possibly a scaled-down version of IOS soft-
ware
10
Includes two modular slots and two built-in LAN interfaces
9
Holds running configuration, routing tables, and other data structures
6
Holds startup configuration
1
Management port used for remote configuration through a modem; not all routers have one of
these
7
Loads instructions defined in Cisco IOS Software from the main processor memory and exe-
cutes them
8
Controls the flow of data among memory, interfaces, and the CPU
2
Management port used for local configuration of the device
4
Stores the Cisco IOS Software image
