Product Overview 1-27
Physical Description
• Most of the memory components used by the system, including the eight erasable programmable
read-only memory (EPROM) components that contain the default system software
• Air-temperature sensors for environmental monitoring
In addition to the preceding system components, the RP contains and executes the following
management functions that control the system:
• Sending and receiving routing protocol updates
• Managing tables and caches
• Monitoring interface and environmental status
• Providing SNMP management and the console/Telnet interface.
Memory Components
Figure 1-8 shows the locations of the various types of memory on the RP, and Table 1-2 lists the
functions of each.
Figure 1-8 Route Processor (RP)
H1322a
Software memory
EPROMS
Configuration
register
J2, Flash memory
write-protection
jumper
Flash memory
card slot
Console port
Auxiliary port
CPU
DRAM
NVRAM
Flash memory
EPROMS
NORMAL
CPU HALT
BOOT ERROR
J3
J4
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