What is Jitter ?

Dolby · Dec 20, 2014

I just headed to Pingtest and just wondered what Jitter is ?

genetic · Dec 20, 2014

Jitter is the variance between successive ping tests... so the less jitter - the more stable the result.

Dolby · Dec 20, 2014

As in the time between each successful packet - if near constant or not ?

genetic · Dec 20, 2014

Dolby said:
As in the time between each successful packet - if near constant or not ?

Nope - It's merely the difference in time between each successful ping test and the next. So if test 1 had a ping of 4ms, and the 2nd had a ping of 5ms, the jitter would be 1ms. If both pings were 4ms, the jitter would be 0ms.

Dolby · Dec 20, 2014

Thanks!

James Erlingson · Dec 21, 2014

Here is mine, seems like a 1ms Jitter is normal

.

Shak_97 · Jul 3, 2015

Realise this thread is relatively dead but trying to resurrect it because i'm having some weird adsl problems and trying to find the cause. My jitter is very high . What causes high Jitter? My tracert does not seem to show any exchange congestion but i'm getting slow speeds and inconsistent throughput.

ScottulusMaximus · Jul 3, 2015

Shak_97 said:
Realise this thread is relatively dead but trying to resurrect it because i'm having some weird adsl problems and trying to find the cause. My jitter is very high . What causes high Jitter? My tracert does not seem to show any exchange congestion but i'm getting slow speeds and inconsistent throughput.

Afrihost

Shak_97 · Jul 3, 2015

ScottulusMaximus said:
Afrihost

was hoping that was the case. Unfortunately tried a w.a. test account and signed up for a vox account yesterday as well (afrihost have 1 month grace) and still getting the same problems.

MrG · Jul 3, 2015

Shak_97 said:
was hoping that was the case. Unfortunately tried a w.a. test account and signed up for a vox account yesterday as well (afrihost have 1 month grace) and still getting the same problems.

Exchange congestion

Sinbad · Jul 3, 2015

Shak_97 said:
was hoping that was the case. Unfortunately tried a w.a. test account and signed up for a vox account yesterday as well (afrihost have 1 month grace) and still getting the same problems.

Using wifi?

Keegan · Jul 3, 2015

Jitter

Once you understand ping, jitter should also make sense. Jitter is merely the variance in measuring successive ping tests. Zero jitter means the results were exactly the same every time, and anything above zero is the amount by which they varied. Like the other quality measurements, a lower jitter value is better. And while some jitter should be expected over the Internet, having it be a small fraction of the ping result is ideal.

http://www.pingtest.net/learn.php

Johnatan56 · Jul 3, 2015

Shak_97 said:
was hoping that was the case. Unfortunately tried a w.a. test account and signed up for a vox account yesterday as well (afrihost have 1 month grace) and still getting the same problems.

Would you mind posting line stats?
Could you also try removing all phones from their wall sockets and plugging the modem directly into the wall without a filter. Then connect your laptop/desktop via an Ethernet cable and try again. Also see if you can borrow a friends modem for a day to check and posts its line stats as well.

Shak_97 · Jul 6, 2015

Sinbad said:
Using wifi?

Yeah using wifi. Never thought of that. Will try and test using a wired connection this evening

Shak_97 · Jul 6, 2015

Johnatan56 said:
Would you mind posting line stats?
Could you also try removing all phones from their wall sockets and plugging the modem directly into the wall without a filter. Then connect your laptop/desktop via an Ethernet cable and try again. Also see if you can borrow a friends modem for a day to check and posts its line stats as well.

Will need to work on getting another router to test. This is tracert without a filter and connected via ethernet.

Detailed Report:

Code:

Pinging 197.245.8.1 with 32 bytes of data:
Reply from 197.245.8.1: bytes=32 time=75ms TTL=254
Reply from 197.245.8.1: bytes=32 time=49ms TTL=254
Reply from 197.245.8.1: bytes=32 time=42ms TTL=254
Reply from 197.245.8.1: bytes=32 time=65ms TTL=254
Reply from 197.245.8.1: bytes=32 time=66ms TTL=254
Reply from 197.245.8.1: bytes=32 time=60ms TTL=254
Reply from 197.245.8.1: bytes=32 time=51ms TTL=254
Reply from 197.245.8.1: bytes=32 time=100ms TTL=254
Reply from 197.245.8.1: bytes=32 time=57ms TTL=254
Reply from 197.245.8.1: bytes=32 time=67ms TTL=254
Reply from 197.245.8.1: bytes=32 time=58ms TTL=254
Reply from 197.245.8.1: bytes=32 time=69ms TTL=254
Reply from 197.245.8.1: bytes=32 time=49ms TTL=254
Request timed out.
Reply from 197.245.8.1: bytes=32 time=46ms TTL=254
Reply from 197.245.8.1: bytes=32 time=74ms TTL=254
Reply from 197.245.8.1: bytes=32 time=50ms TTL=254
Reply from 197.245.8.1: bytes=32 time=72ms TTL=254
Reply from 197.245.8.1: bytes=32 time=63ms TTL=254
Reply from 197.245.8.1: bytes=32 time=36ms TTL=254
Reply from 197.245.8.1: bytes=32 time=74ms TTL=254
Reply from 197.245.8.1: bytes=32 time=61ms TTL=254
Reply from 197.245.8.1: bytes=32 time=55ms TTL=254
Reply from 197.245.8.1: bytes=32 time=72ms TTL=254
Reply from 197.245.8.1: bytes=32 time=63ms TTL=254
Reply from 197.245.8.1: bytes=32 time=50ms TTL=254
Reply from 197.245.8.1: bytes=32 time=52ms TTL=254
Reply from 197.245.8.1: bytes=32 time=48ms TTL=254
Reply from 197.245.8.1: bytes=32 time=75ms TTL=254
Reply from 197.245.8.1: bytes=32 time=75ms TTL=254

Ping statistics for 197.245.8.1:
    Packets: Sent = 30, Received = 29, Lost = 1 (3% loss),
Approximate round trip times in milli-seconds:
    Minimum = 36ms, Maximum = 100ms, Average = 61ms

Johnatan56 · Jul 7, 2015

Shak_97 said:

Will need to work on getting another router to test. This is tracert without a filter and connected via ethernet.

Detailed Report:

Code:

Pinging 197.245.8.1 with 32 bytes of data:
Reply from 197.245.8.1: bytes=32 time=75ms TTL=254
Reply from 197.245.8.1: bytes=32 time=49ms TTL=254
Reply from 197.245.8.1: bytes=32 time=42ms TTL=254
Reply from 197.245.8.1: bytes=32 time=65ms TTL=254
Reply from 197.245.8.1: bytes=32 time=66ms TTL=254
Reply from 197.245.8.1: bytes=32 time=60ms TTL=254
Reply from 197.245.8.1: bytes=32 time=51ms TTL=254
Reply from 197.245.8.1: bytes=32 time=100ms TTL=254
Reply from 197.245.8.1: bytes=32 time=57ms TTL=254
Reply from 197.245.8.1: bytes=32 time=67ms TTL=254
Reply from 197.245.8.1: bytes=32 time=58ms TTL=254
Reply from 197.245.8.1: bytes=32 time=69ms TTL=254
Reply from 197.245.8.1: bytes=32 time=49ms TTL=254
Request timed out.
Reply from 197.245.8.1: bytes=32 time=46ms TTL=254
Reply from 197.245.8.1: bytes=32 time=74ms TTL=254
Reply from 197.245.8.1: bytes=32 time=50ms TTL=254
Reply from 197.245.8.1: bytes=32 time=72ms TTL=254
Reply from 197.245.8.1: bytes=32 time=63ms TTL=254
Reply from 197.245.8.1: bytes=32 time=36ms TTL=254
Reply from 197.245.8.1: bytes=32 time=74ms TTL=254
Reply from 197.245.8.1: bytes=32 time=61ms TTL=254
Reply from 197.245.8.1: bytes=32 time=55ms TTL=254
Reply from 197.245.8.1: bytes=32 time=72ms TTL=254
Reply from 197.245.8.1: bytes=32 time=63ms TTL=254
Reply from 197.245.8.1: bytes=32 time=50ms TTL=254
Reply from 197.245.8.1: bytes=32 time=52ms TTL=254
Reply from 197.245.8.1: bytes=32 time=48ms TTL=254
Reply from 197.245.8.1: bytes=32 time=75ms TTL=254
Reply from 197.245.8.1: bytes=32 time=75ms TTL=254

Ping statistics for 197.245.8.1:
    Packets: Sent = 30, Received = 29, Lost = 1 (3% loss),
Approximate round trip times in milli-seconds:
    Minimum = 36ms, Maximum = 100ms, Average = 61ms

Could you ping 192.168.1.1 instead?

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What is Jitter ?

Dolby

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genetic

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Dolby

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genetic

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Dolby

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James Erlingson

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Sinbad

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