‘Ping Test’ provides functions to check the connection status and the packet delay time between iPECS-NMS and a general network device, and can be entered by clicking [Ping] tab menu.
Before performing Ping test, the IP address of the target network device, and the interval & count for Ping packet transmission should be configured in ‘Ping Configuration & Operation’. For ‘Interval’ field, one of 5, 10, 20, 30 second options can be selected using the combo-box, and ‘Count’ field can have a value between 1~65535. ‘Estimated Time’ field displays an estimated completion time calculated from the values of ‘Interval’ and ‘Count’ fields, and is a read-only field that does not require input from user.
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needed to stop the Ping test before the completion of the test (before the estimated time), user may click [Stop] button to force the test to be stopped. After the Ping test is started, real-time graph and table that show the result from each Ping test are displayed below.
The graph and table that show the result of Ping test can be displayed in three types of time period such as ‘Live Data’, ‘Last 60 Minutes’, and ‘Last 24 Hours’. The real-time graph and table are displayed by clicking [Live Data] button. [Last 60 Minutes] and [Last 24 Hours] buttons are used for displaying the graphs and tables for last 60 minutes and 24 hours from the moment the corresponding button was clicked. (After the test has been finished, they are displayed from the moment of the completion of the test.)
The graph in the picture above shows the changes in RTT (Round-Trip Time), which is the time between the transmission of a Ping packet and the reception of the response packet. RTT is often used to estimate the packet delay time in a network environment. The table below the graph shows the information from the Ping test, and the meanings of the table fields are as follows.
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Table Name Field Name Description
Reply IP Address
The IP address of the device that responded to the Ping packet sent by iPECS-NMS. Normally, this is to be the same IP address as the target ‘IP Address’ configured in ‘Ping Configuration & Operation’.
RTT
Abbreviation of Round-Trip Time. This is the elapsed time until the reception of the response packet to a Ping packet sent by iPECS- NMS.
Average RTT
The overall average of the RTT values from all the Ping tests calculated since the beginning of the Ping test.
Delay Variation
The difference in value between the RTT values of the previous row and the current row of the table.
Live Data
Time
The time when the Ping packet was actually transmitted to the target device. The ‘Time’ interval may not be exactly same as the ‘Interval’ value configured in ‘Ping Configuration & Operation’ depending on the operational or processing load on the NMS server.
Reply IP Address
The IP address of the device that responded to the Ping packet sent by iPECS-NMS. Normally, this is to be the same IP address as the target ‘IP Address’ configured in ‘Ping Configuration & Operation’.
RTT
This is the average of the RTT values from the Ping tests for last 1 minute (actually, the time between the previous row and the current row in the table).
Average RTT
The overall average of the RTT values from all the Ping tests calculated since the beginning of the Ping test.
Delay Variation
The difference in value between the RTT values of the previous row and the current row of the table.
Last 60 Minutes
Time
The time when the Ping packet was actually transmitted to the target device. The ‘Time’ interval may not be exactly same as the ‘Interval’ value configured in ‘Ping Configuration & Operation’ depending on the operational or processing load on the NMS server.
Reply IP Address
The IP address of the device that responded to the Ping packet sent by iPECS-NMS. Normally, this is to be the same IP address as the target ‘IP Address’ configured in ‘Ping Configuration & Operation’.
RTT
This is the average of the RTT values from the Ping tests for last 1 hour (actually, the time between the previous row and the current row in the table).
Last 24 Hours
Average RTT
The overall average of the RTT values from all the Ping tests calculated since the beginning of the Ping test.
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Table Name Field Name Description
Delay Variation
The difference in value between the RTT values of the previous row and the current row of the table.
Time
The time when the Ping packet was actually transmitted to the target device. The ‘Time’ interval may not be exactly same as the ‘Interval’ value configured in ‘Ping Configuration & Operation’ depending on the operational or processing load on the NMS server.
After the Ping operation is finished, the operation result data can be downloaded and saved as an Excel format file by clicking on the [Excel Report] button.
The picture above shows an example of a downloaded Excel report file. The Excel sheets for Live Data, Last 60 Minutes and Last 24 Hours are shown by clicking corresponding tabs at the bottom of Excel program.