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Monitoring System Properties

The system properties include everything from the name and IP address of the Services Router to the resource usage on the Routing Engine. To view these system properties, select Monitor>System in the J-Web interface, or enter the following CLI show commands:

Table 4 summarizes key output fields in system properties displays.

Table 4: Summary of Key System Properties Output Fields

Field

Values

Additional Information

System Identification

Serial Number

Serial number for the Services Router.

 

JUNOS Software Version

Version of JUNOS software active on the Services Router, including whether the software is for domestic or export use.

Export software is for use outside of the U.S. and Canada.

Router Hostname

Hostname of the Services Router, as defined with the set system hostname command.

 

Router IP Address

IP address, in dotted decimal notation, of Ethernet management port 0 (ge-0/0/0, for example), as defined with the set interfaces ge-0/0/0 command.

 

Loopback Addresses

IP address, in dotted decimal notation, of the loopback address, as defined with the set interfaces lo0 command.

 

Domain Name Servers

IP addresses, in dotted decimal notation, of the domain name servers, as defined with the set system name-server command.

 

Time Zone

Time zone of the Services Router, as defined with the set system time-zone command.

 
System Time

Current Time

Current system time, in Coordinated Universal Time (UTC).

 

System Booted Time

Date and time when the router was last booted and how long it has been running.

 

Protocol Started Time

Date and time when the routing protocols were last started and how long they have been running.

 

Last Configured Time

Date and time when a configuration was last committed. This field also shows the name of the user who issued the last commit command, through either the J-Web interface or the CLI.

 
Users

User

Username of any user logged in to the Services Router.

 

TTY

Terminal through which the user is logged in.

 

From

System from which the user has logged in. A hyphen indicates that the user is logged in through the console.

 

Login Time

Time when the user logged in.

This is the LOGIN@ field in show system users command output.

Idle Time

How long the user has been idle.

 

Command

Processes that the user is running.

This is the WHAT field in show system users command output.

Memory Usage

Total Memory Available

Total RAM available on the Services Router.

 

Total Memory Used

Total RAM currently being consumed by processes actively running on the Services Router, displayed both as a quantity of memory and as a percentage of the total RAM on the router.

 

Process ID

Process identifier.

This is the PID field in show system processes command output.

Process Owner

Name of the process owner.

 

Process Name

Command that is currently running.

Individual processes on the Services Router are listed here. Because each process within JUNOS operates in a protected memory environment, you can diagnose whether a particular process is consuming abnormally high amounts of resources.

If a software process is using too much CPU or memory, you can restart the process by entering the restart command from the CLI.

CPU Usage

Percentage of the CPU that is being used by the process.

 

Memory Usage

Percentage of the installed RAM that is being used by the process.

 
CPU Usage

Total CPU Used

Sum of CPU usages by all processes, expressed as a percentage of total CPU available.

 

Process ID

Process identifier.

This is the PID field in show system processes command output.

Process Owner

Name of the process' owner.

 

Process Name

Command that is currently running.

Individual processes on the Services Router are listed here. Because each process within JUNOS operates in a protected memory environment, you can diagnose whether a particular process is consuming an abnormal amount of resources.

If a software process is using too much CPU or memory, you can restart the process by entering the restart command from the CLI.

CPU Usage

Percentage of the CPU that is being used by the process.

 

Memory Usage

Percentage of the installed RAM that is being used by the process.

 
System Storage

Total Flash Size

Total size, in megabytes, of the primary flash device.

 

Usable Flash Size

Total usable memory, in megabytes, of the primary flash device.

The total usable flash memory is the total memory minus the size of the JUNOS image installed on the Services Router.

Flash Used

Total flash memory used, in megabytes and as a percentage of the total usable flash size, of the primary flash device.

 

Log Files

Total size, in kilobytes, of the log files on the Services Router.

This is the sum of file sizes in the /var/log directory.

Temporary Files

Total size, in kilobytes, of the temporary files on the Services Router.

This is the sum of the file sizes in the /var/tmp directory.

Crash (Core) Files

Total size, in kilobytes, of the core files on the Services Router.

This is the sum of the file sizes in the /var/crash directory.

Database Files

Total size, in kilobytes, of the configuration database files on the Services Router.

This is the sum of the file sizes in the /var/db directory.

For more information about the J-Web Monitor task, see Monitor Tasks.


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