Specifications

3-21
Cisco AS5x00 Case Study for Basic IP Modem Services
11/24/1999
Section 3 Commissioning the Cisco AS5800 Hardware
Verifying Basic Setup
The
squeeze
command is required to remove deleted files:
5800-NAS#pwd
dsc12-bootflash:/
5800-NAS#delete dsc-c5800-mz.113-9.AA2
Delete filename [dsc-c5800-mz.113-9.AA2]?
Delete dsc12-bootflash:dsc-c5800-mz.113-9.AA2? [confirm]
5800-NAS#squeeze dsc12-bootflash:
All deleted files will be removed. Continue? [confirm]
Squeeze operation may take a while. Continue? [confirm]
DA-Slot12#
All deleted files will be removed. Continue? [confirm]
Squeeze operation may take a while. Continue? [confirm]
Squeeze of bootflash complete
Squeeze of dsc12-bootflash complete
5800-NAS#

Inspect the NVRAM memory on the router shelf and dial shelf. Three files are present:
startup-config, private-config, and underlying-config.
`
The private-config is a secure file that supports encryption technologies. It is not user
accessible.
`
The underlying config is the version of the startup-config that is stored in NVRAM.
Router#dir nvram:
Directory of nvram:/
1 -rw- 739 <no date> startup-config
2 ---- 24 <no date> private-config
3 -rw- 739 <no date> underlying-config
129016 bytes total (128277 bytes free)
Router#
Router#dir dsc12-nvram:
Directory of dsc12-nvram:/
1 -rw- 0 <no date> startup-config
2 ---- 0 <no date> private-config
3 -rw- 0 <no date> underlying-config
126968 bytes total (126968 bytes free)
Router#
1.7 Investigating Memory Usage
Use the
show memory summary
command to:

Understand how memory is used for different processor and I/O memory processes.

Identify memory fragmentation and memory leaks.
`
Memory leaks—Memory that is not released back to the processor. Memory leaks are indicated
by steady decreases of free memory. However, the preferred way to track memory leaks is to
monitor the FreeMem variable in the OID MIB.
`
Memory fragmentation—Indicated by the largest block of memory not being equal to the free
block. Fragmentation increases as the numbers grow further apart.