Ssm

The following scenario shows how to configure different SSM (System Service Monitoring) operations. SSM operations can be used to monitor several system states (e.g., CPU, memory, storage and temperature), activating or deactivating previously defined alarms when the monitored states reach certain threshold values.

Monitoring Storage

Description

In this scenario an SSM operation is configured in DUT0 to monitor the storage state of the system and activate or deactivate an alarm when said state reaches a defined threshold value. First, the alarm is activated when a new file is downloaded. Then the alarm is deactivated when the downloaded file is deleted.

Scenario

Step 1: Run command show system storage at DUT0 and expect this output:

Step 2: Set the following configuration in DUT0:

set service ssm log-level notice
set service ssm operation OPER_STO interval 0.05
set service ssm operation OPER_STO description 'OPER_STO operation description'
set service ssm operation OPER_STO type storage
set service ssm operation OPER_STO alarm ALARM_STO activate value 299879
set service ssm operation OPER_STO alarm ALARM_STO deactivate value 297880.1
set system alarm ALARM_STO

Note

To emulate an increase in storage usage, a file with a known size could be downloaded. To activate the alarm with this increase in storage used, the alarm activation threshold must be adjusted with the value resulting from adding the current used storage and the size of the new file to be downloaded. In this example, the value set as the activation threshold is 299879K, since the value of the current used storage is 293216K and the size of the new file to be downloaded is 6663K. Also, to emulate a decrease in storage used, the previously downloaded file could be deleted. To deactivate the alarm with this decrease in storage used, the alarm deactivation threshold must be adjusted with the value of the storage used before downloading the new file. In this example, the value set as the deactivation threshold is 297880.1K.

Step 3: Run command service ssm operation show at DUT0 and check if output contains the following tokens:

OPER_STO

Step 4: Run command system alarm ALARM_STO show at DUT0 and check if output matches the following regular expressions:

(ALARM_STO)\s+(false)

Step 5: Run command service ssm operation OPER_STO show at DUT0 and check if output matches the following regular expressions:

(OPER_STO)\s+(storage)[\s\d.]+(ALARM_STO)[\s\d.]+(false)

Step 6: Run command service ssm operation show at DUT0 and check if output matches the following regular expressions:

(OPER_STO)\s+(storage)[\s\d.]+(ALARM_STO)[\s\d.]+(false)

Note

The previous command output should show that the operation has been created successfully and that the alarm is desactivated, since the storage used has not yet increased.

Step 7: Set the following configuration in DUT0:

set interfaces ethernet eth0 address 10.215.168.64/24

Step 8: Ping IP address 10.215.168.1 from DUT0:

admin@DUT0$ ping 10.215.168.1 count 1 size 56 timeout 1

Step 9: Run command file copy http://10.215.168.1/~robot/ssm_test_file running:// force at DUT0 and expect this output:

Step 10: Run command file show running:// at DUT0 and check if output contains the following tokens:

ssm_test_file

Note

With the previous command, a file with a known size is downloaded, thus causing an increase in the storage used.

Step 11: Run command show system storage at DUT0 and expect this output:

Step 12: Run command system alarm ALARM_STO show at DUT0 and check if output matches the following regular expressions:

(ALARM_STO)\s+(true)

Step 13: Run command service ssm operation OPER_STO show at DUT0 and check if output matches the following regular expressions:

(OPER_STO)\s+(storage)[\s\d.]+(ALARM_STO)[\s\d.]+(true)

Step 14: Run command service ssm operation show at DUT0 and check if output matches the following regular expressions:

(OPER_STO)\s+(storage)[\s\d.]+(ALARM_STO)[\s\d.]+(true)

Note

The previous command output should show that the alarm is activated, since the storage used has increased after downloading the new file.

Step 15: Delete a file by running file delete running://ssm_test_file.

Note

With the previous command, the downloaded file is deleted, thus causing a decrease in the storage used.

Step 16: Run command show system storage at DUT0 and expect this output:

Step 17: Run command system alarm ALARM_STO show at DUT0 and check if output matches the following regular expressions:

(ALARM_STO)\s+(false)

Step 18: Run command service ssm operation OPER_STO show at DUT0 and check if output matches the following regular expressions:

(OPER_STO)\s+(storage)[\s\d.]+(ALARM_STO)[\s\d.]+(false)

Step 19: Run command service ssm operation show at DUT0 and check if output matches the following regular expressions:

(OPER_STO)\s+(storage)[\s\d.]+(ALARM_STO)[\s\d.]+(false)

Note

The previous command output should show that the alarm is deactivated, since the storage used has decreased after the deletion of the downloaded file.