Specifications

2-10
Cisco AS5x00 Case Study for Basic IP Modem Services
11/24/1999
Section 2 Commissioning the Cisco AS5300 Hardware
Verifying Basic Setup

Inspect the NVRAM directory:
Router#dir nvram:
Directory of nvram:/
1 -rw- 0 <no date> startup-config
2 ---- 0 <no date> private-config
126968 bytes total (126968 bytes free)
In the example, two files are present: startup-config and private-config. The private-config is a
secure file that is part of the startup configuration. It supports encryption technologies, but it is
not user accessible.
1.4 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 leak —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
lowest block. Fragmentation increases as the numbers grow further apart.
Figure 2-3 Processor and I/O Memory Usage
Note
Do not enter the
show memory summary
command with the
terminal length 0
command
enabled. If you do, many screens of output will appear. It might interrupt your session.
Total
memory
Used
memory
Free
memory
24515
Router#show memory summary
Head Total(b) Used(b) Free(b) Lowest(b) Largest(b)
Processor 60BA41A0 54902368 3290524 51611844 51459700 51470956
I/O 40000000 16777216 2252584 14524632 14524632 14524632
=+