Cisco Systems Cisco 12816 Manuale Utente
1-31
Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
OL-11495-01
Chapter 1 Product Overview
Alarm Card, Line Card, and Rout Processor Overview
GRP Memory Components
This section describes various types of memory used on the GRP to support router
functions.
functions.
provides a quick reference of the different types of memory,
and
shows the location on the GRP board.
Table 1-1
GRP Memory Components
Type
Size
Quantity
Description
Location
DRAM
128
1
or
256 MB
1.
Default shipping configuration.
1 or 2
Uses 64 MB or 128 MB DIMMs
(based on DRAM configuration) for
main Cisco IOS software functions
(based on DRAM configuration) for
main Cisco IOS software functions
U39 (bank 1)
U42 (bank 2)
SRAM
512 KB (fixed) —
Secondary CPU cache memory
functions
functions
—
NVRAM
512 KB (fixed) —
System configuration files, register
settings, and logs
settings, and logs
—
Flash memory
8 MB SIMM
1
Cisco IOS software images and other
user-defined files
user-defined files
U17
Flash memory
card
card
PCMCIA
2
2.
Type I or Type II PCMCIA cards can be used in either slot.
20 MB
1 or 2
Cisco IOS software images, system
configuration files, and other
user-defined files on one or two flash
memory cards
configuration files, and other
user-defined files on one or two flash
memory cards
Slots 0 and 1
Flash boot
ROM
ROM
512 KB
1
Flash EPROM for the ROM monitor
program boot image
program boot image
—