Cisco AS5350 - Universal Access Server - Investigating Memory Usage

2-7
Cisco AS5350 and Cisco AS5400 Universal Gateway Software Configuration Guide
OL-3418-02 B0
Chapter 2 Verifying Basic Setup
Investigating Memory Usage
interface Group-Async0
no ip address
no ip route-cache
no group-range
!
ip kerberos source-interface any
ip classless
no ip http server
!
!
line con 0
logging synchronous
transport input none
line aux 0
logging synchronous
line vty 0 4
password cisco
login
line 4/00 4/107
no flush-at-activation
modem InOut
!
scheduler allocate 10000 400
end
The Cisco AS5350 or Cisco AS5400 displays every asynchronous interface it recognizes. Therefore, if
your system has a large number of asynchronous interfaces, the running-configuration will be very long.
To aggregate the asynchronous interfaces, you must assign them to a Group-Async Interface using the
command group-range. See the “Configuring the Asynchronous Group Interface” section on page 3-7.
Group-async interfaces are templates used to control the configuration of multiple asynchronous
interfaces on the gateway. Each asynchronous interface corresponds to one of the modem lines and uses
the same number as its corresponding line. Configuring the asynchronous interfaces as a group-async
saves you time and configuration file size.
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 (object-identifier management information
base).
– Memory fragmentation—Indicated by the largest block of memory not being equal to the lowest
block. Fragmentation increases as the numbers grow further apart.
Router# show memory summary
Head Total(b) Used(b) Free(b) Lowest(b) Largest(b)
Processor 61952B00 107664640 24210716 83453924 82827184 82866768
I/O 40000000 67108880 28952352 38156528 38156528 38156412
.
.
.