Infoblox NTP Test

NTP (Network Time Protocol) ensures accurate time synchronization across all devices in a network using Infoblox appliances. Infoblox appliances can function as NTP clients, servers, or both.

This test monitors the NTP servers and reports if there is any delay or offset between the NTP server and the target Infoblox appliance. This helps the administrators to be aware of the network congestions or unstable NTP servers and take corrective actions.

Target of the test : An Infoblox appliance

Agent deploying the test : An external agent

Outputs of the test : One set of results for each NTP server in the Infoblox appliance that is to be monitored.

Configurable parameters for the test
Parameter Description

Test Period

How often should the test be executed.

Host

The IP address of the Infoblox appliance for which this test is to be configured.

Timeout

Specify the duration (in seconds) within which the SNMP query executed by this test should time out in this text box. The default is 60 seconds.

Is Debug Enabled

By default, this flag is set to No. If you wish to obtain troubleshooting logs for this test, then, set this flag to Yes. The troubleshooting log with the naming convention <Component Name_Internal name of the test>.log will be created in the <eG_INSTALL_DIR>\agant\logs folder once the test starts reporting metrics.

Measurements made by the test

Measurement

Description

Measurement Unit

Interpretation

Stratum

Indicates the stratum of this NTP server.

Number

Stratum refers to the distance (in hops) from the reference clock source.

Type

Indicates the type of this NTP server.

 

The values reported by this measure and their numeric equivalents are available in the table below:

Measure Value Numeric Value
Local 1
Unicast 2
Broadcast 3

Note:

This measure reports the Measure Values listed in the table above to indicate the type of the NTP server. However, in the graph, this measure is indicated using the Numeric Values listed in the above table.

Delay

Indicates the round-trip network delay between the Infoblox appliance (acting as an NTP client) and this NTP server.

Seconds

A high delay can lead to reduced accuracy in time synchronization, especially if there's asymmetry in the round-trip path.

Offset

Indicates the difference in time between the Infoblox system clock and this NTP server clock.

Milliseconds

 

Jitter

Indicates how much the offset values fluctuate over time in this NTP server.

Seconds

High jitter could suggest network congestion, intermittent connectivity issues, or unstable/distant NTP servers.