Cisco Systems Cisco 12008 GRP Memory Components

Overview of the Cisco 12008
Cisco 12008 Gigabit Switch Router Installation and Configuration Guide
1-28
The Cisco 12008 supports downloadable system software for most Cisco IOS software
upgrades, enabling you to remotely download, store, and boot from a new Cisco IOS
software image.
GRP Memory Components
Table1-2 lists the memory components on the GRP. Figure 1-10 shows the location of the
two DRAM SIMMs and the Flash SIMM on the GRP.
Table1-2 GRP Memory Components
Memory Type Memory Size Quantity Description
DRAM 641 to 256 MB
1. 64 MB of DRAM is the default DRAM configuration for the G RP.
1 or 2 64- or 128-MB DIMMs (based on
DRAM required) for main Cisco IOS
software functions
SRAM 512 KB (fixed)2
2. SRAM is not user co nfigurable or field upgradeable.
SRAM for secondary CPU cache
memory functions
NVRAM 512 KB (fixed)3
3. NVRAM is not user configurable or field upgradeable.
MVRAM for the system configuration
file
Flash memory
SIMM4
4. The SIMM socket is wi red according to Cisco’s own design and does not accept industry-standard 80-pin Flash
SIMMs.
8 MB 1 Contains Cisco IOS sof tware images and
other user-defined files on the GRP
Flash memory
(card) 20 MB5
5. 20-MB Flash memory card is the default shipping conf igu ra tion for the Cisco 12008.
1 or 2 Contains Cisco IOS software images and
other user-defined files on up to two
PCMCIA-based Flash memory cards6
6. A Type 1 or Type 2 PCMCIA card can be used in either PCMCIA slo t.
Flash boot ROM 512 KB 1 Flash EPROM for the ROM monitor
program boot image