Troubleshooting guide

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Cisco PGW 2200 Softswitch Release 9.8 Operations, Maintenance, and Troubleshooting Guide
OL-0800-14
Chapter 3 Cisco PGW 2200 Softswitch Platform Operations
Daily Tasks
Step 1 Log in to the active Cisco PGW 2200 Softswitch.
Step 2 Enter the following UNIX commands:
cd /usr/sbin
prtconf | grep Memory
The system returns a response like the following:
Memory size: 2048 Megabytes
Step 3 To determine the size of the swap space on the disk, enter the following UNIX command:
swap -s
The system returns a response like the following:
total: 235272k bytes allocated + 65912k reserved = 301184k used, 5471344k available
Step 4 Add the amount of physical memory to the amount of swap space. This value is the maximum virtual
memory for your system.
Step 5 To determine the amount of available virtual memory, enter the following UNIX command:
vmstat
The system returns a response like the following:
kthr memory page disk faults cpu
r b w swap free re mf pi po fr de sr m1 m2 m3 m4 in sy cs us sy id
0 0 0 5509624 1365192 0 0 0 0 0 0 0 0 0 0 0 405 252 318 0 0 100
The amount of swap and free memory that is listed in the response (5509624 and 1365192 in the
preceding example) represents the total amount of available virtual memory. This amount should always
be greater than 10 percent of the maximum virtual memory. If virtual memory is less than 10 percent,
proceed to Step 5.
Note You can also use this command to check the available virtual memory repeatedly. Enter it in the
format vmstat n, where n is the number of seconds between checks. See the man page for the
vmstat command for more information.
When you enter the vmstat command to check the available virtual memory repeatedly, you
should ignore the first line of output.
Step 6 Collect the system data that is described in the “Collecting System Data for Cisco TAC” section on
page 6-93. Contact the Cisco TAC to analyze the problem further and to determine a solution. For more
information about contacting the Cisco TAC, see the “Obtaining Documentation and Submitting a
Service Request” section on page xviii.
Verifying Available Memory on the Cisco ITP-Ls
You should check the amount of available memory on your Cisco IP Transfer Point LinkExtenders
(ITP-Ls) daily. To check, perform the following steps: