PRTG Manual: Ping Jitter v2 Sensor
The Ping Jitter v2 sensor sends a series of Internet Control Message Protocol (ICMP) echo requests ("pings") to the parent device and monitors the response time and jitter.
Ping Jitter v2 Sensor
For a detailed list and descriptions of the channels that this sensor can show, see section Channel List.
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Consider the following remarks and requirements for this sensor:
Remark |
Description |
|---|---|
IPv6 |
This sensor supports IPv6. |
Performance impact |
This sensor has a low performance impact. |
The sensor has the following default tags that are automatically predefined in the sensor's settings when you add the sensor:
- pingjitter
For more information about basic sensor settings, see section Sensor Settings.
Specific Sensor Settings
Setting |
Description |
|---|---|
Timeout (Sec.) |
Enter a timeout in seconds for the request. The default timeout is 5 seconds. Enter an integer from 1 to 300 (5 minutes). |
Ping Count |
Enter the number of ICMP pings that the sensor sends within one scanning interval. The default value is 10 pings. Enter an integer from 2 to 100. |
Ping Delay (ms) |
Enter the time in milliseconds (ms) that the sensor waits between two ping requests. The default value is 5. Enter an integer from 1 to 100.
|
Time to Live (Hops) |
Define the time to live (TTL) for each ping. You can limit the number of network hops that the request can traverse before it is dropped. The default value is 64. Enter an integer from 1 to 255. |
Sensor Display
Setting |
Description |
|---|---|
Primary Channel |
Select a channel from the list to define it as the primary channel. In the device tree, PRTG displays the last value of the primary channel below the sensor's name. The available options depend on what channels are available for this sensor.
|
Graph Type |
Define how this sensor shows different channels: |
Stack Unit |
Select a unit from the list. PRTG stacks all channels with this unit on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so. |
Debug Options
Setting |
Description |
|---|---|
Result Handling |
Define what PRTG does with the sensor result: |
By default, all of these settings are inherited from objects that are higher in the hierarchy. We recommend that you change them centrally in the root group settings if necessary. To change a setting for this object only, click 
under the corresponding setting name to disable the inheritance and to display its options.
For more information, see section Inheritance of Settings.
Which channels the sensor actually shows might depend on the target device, the available components, and the sensor setup.
Channel |
Description |
|---|---|
Average Response Time |
The average response time of all successful pings in a series of pings |
Downtime |
In the channel table on the Overview tab, this channel never shows any values. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down status. |
Jitter |
The statistical jitter value PRTG calculates the Statistical Jitter value according to all packets received using a statistical deviation formula: Jitter Statistical = SquareRootOf( SumOf( ( ElapsedTime[i] – Average) ^ 2 ) / ( ReceivedPacketCount – 1 ) ) The statistical jitter value is different from the Real Time Jitter value, which is updated every time a packet is received using the formula described in RFC 3550: Jitter = Jitter + ( abs( ElapsedTime – OldElapsedTime ) – Jitter ) / 16
|
Maximum Response Time |
The longest response time from all successful pings in a series of pings |
Minimum Response Time |
The shortest response time from all successful pings in a series of pings |
KNOWLEDGE BASE
What security features does PRTG include?
