Memory
Configurations
Table
1-2
lists
the
interface
ports of
different
3000 models
Table
1-2
Network
Interface
Options
Model
Ethernet
Token
Ring
Serial
BRI
3101
3102
3103
3202
3104
3204
Memory
Configuratons
Model 3000
routers
have
the following
memoiy
systems
Primary
memory main memoryStores
the
running
configuration
and
routing
tables
Shared
memoryUsed
for packet buffering
by
the routers
network
interfaces
Nonvolatile
memoryStores
the system configuration
file
and
the
virtual
configuration
register
Flash
memoryStores
the operating system software
image
Boot
ROM
memoryStores
subset of the operating system software
image which
is
called the
System
Bootstrap
image and
the Bootstrap
Program
ROM
Monitor
The System
Bootstrap
image
allows
you
to
boot the router
when
Flash
memory
does
not contain
valid
systemimage
The
boot
ROM
prompt
is
as
follows
Routerboot
The
Bootstrap
Program
ROM
Monitor
prompt
is
the greater than sign
See
Appendix
Virtual
Configuration
Register
and Appendix
Bootstrap
Program
Table
1-3
shows
possible
memory
configurations
for the router
Table
1-3
Memory
Configurations
Memory
Type
Memory
Capacity
Primary
memory main
memory
MB
expandable
Shared
memory
.5
MB
Nonvolatile
memory
32
KB2
System
Code memory Flash
MB
expandable
Boot
ROMs
MB
expandable
2MB
for
models
3104
and
3204
128
KB
for
models
3104
and
3204
No
jumper
or
PAL
changes
are
necessary
to
support
different
memory
sizes except
for
the boot
ROM
size
differences
1-4
Cisco 3000 Hardware
Installation
and Maintenance
Содержание 3000 Series
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