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What is Last Changed on Interface Configuration sub view

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Article ID: 228125

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Updated On:

Products

CA Spectrum

Issue/Introduction

How the "Last Changed" field in Interface component details, under Interface Configuration sub view is obtained.

Cause

The Last Changed depends on ifLastChange and sysUpTime attribute.

sysUpTimeInstance    1.3.6.1.2.1.1.3.0
ifLastChange    1.3.6.1.2.1.2.2.1.9.<interface_index>

The ifLastChange contains the value of sysUpTime at the time the interface entered its current operational state. 
If the current state was entered prior to the last re-initialization of the local network management subsystem, then this object contains a zero value. 
In that case, the Last Changed should have the same value as sysUpTime.
Otherwise, it should have the difference between the two attributes.

Environment

Release : 20.2

Component : Spectrum Core / SpectroSERVER

Resolution

Let's take next example:

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The first image show the value for this interface ifLastChange is 3511. This value is on TimeTicks

A timetick is a hundredth of a second, i.e. <num_seconds>/100.

So 3511 timeticks correspond to 3511/100 = 35 seconds.

As you can see from the second image, the System Up Time is 198 days + 22:40:07.

On the other hand the Last Change field value is 198 days + 22:39:32

That is exactly 35 seconds or 3511 timeticks after the System boot up,

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