Table of Contents
Advertisement
Chapter 1
Product Overview
•
•
•
•
Figure 1-6
Back
Table 1-4
Table 1-4
Network Processor Memory, Cashe, and Flask Disk Information
Memory Type
Size
SDRAM packet
64 MB
memory
SDRAM system
128 to 256 MB
memory
Boot ROM
512 KB
Flash memory
8 MB
SIMM
NVRAM
128 KB
OL-5916-01
Four environmental sensors—Monitor the cooling air as it leaves the chassis.
Boot ROM—Stores sufficient code for booting the Cisco IOS software.
Flash memory single in-line memory module (SIMM)—Stores the boot image used to boot the
router.
NVRAM onboard flash memory—Stores the system configuration and environmental monitoring
logs. (The NVRAM uses lithium batteries to maintain its contents when disconnected from power.)
Network Processor Card
Environmental
NVRAM
sensor
describes the memory types.
Quantity
1 fixed
SDRAM slot
2 configurable
SDRAM slots
1
1
1
Cisco uBR7100 Series and Cisco uBR7100E Series Universal Broadband Router Hardware Installation Guide
Environmental
sensor
Polarization
notch alignment
Boot ROM
Description
Fixed at 64 MB DIMM at the factory
64 or 128-MB DIMMs (based on maximum
SDRAM required)
1
OTP
ROM for the ROM monitor program
Contains the default boot helper image
Nonvolatile EPROM for the system
configuration file
Functional Overview
Front
Polarization
notch alignment
SDRAM
DIMM 1
SDRAM
DIMM 2
Environmental
sensor
Environmental
sensor
SDRAM DIMM 0
(always 64 MB)
Flash memory
SIMM
Location
DIMM 0 = U16
DIMM 1 = U13
DIMM 2 = U14
Socket U21
Flash SIMM
socket P2
U69
1-17
Advertisement
Table of Contents
Troubleshooting
