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What does the StarNet Analyzer (SNA) measure?

StarNet Analyzer (SNA)

The StarNet Analyzer, or SNA, is a Java applet that runs onsite for a minimum of 48 hours (business hours) testing the customers Internet connection. We measure several items, including speed, packet loss, jitter, round trip times, which provides you with a graded report card that will also display MoS scoring. The SNA collects several metrics that are critical to voice over IP communications and is therefore a mandatory test for all installations.

What does the SNA measure?

Capacity

  • Upstream Bandwidth
  • Downstream Bandwidth

Latency

  • Round Trip Time

Consistency

  • Upstream Variance
  • Downstream Variance

Routing

  • Number of Connection Points (Hops)
  • Route Delay

What do the results look like?

 

  

                      Up Jitter / Down Jitter                                                                                      Up Loss / Down Loss

 

  

                                             MOS                                                                                      Up Speed / Down Speed

 

                                               QOS

  • Jitter
    • Excellent = Always under 10ms.
    • Quality = Stays under 10-25ms about 90% of the time.
    • Poor = There are multiple instances of jitter with some rising above 30 - 50 ms or higher.
  • Packet Loss
    • Excellent = No packet loss
    • Quality = Some packet loss, but there are a small number of instances, and they do not go above 3%.
    • Poor = Any consistent packet loss above 3%.
  • Speed
    • To figure out the minimum amount of bandwidth required for a circuit, follow this formula: (Number of lines x 32K) + 100. So, three lines needs 196K, since 32 x 3 = 96, then 96 + 100 = 196K. The 100K is due to the data requirement, so if a circuit is just voice, just use the line multiplication part of the formula.
    • Excellent = There is more than enough speed for the amount of lines needed, and the service is very stable.
    • Quality = Still enough speed for the lines needed, but service is unstable and has some  drops.
    • Poor = Bandwidth consistently drops below the minimum required bandwidth once or twice.
  • Round Trip Time
    • Excellent = Pings lower than or around 40ms consistently with very little to no spikes.
    • Quality = Pings under 70ms with small spikes.
    • Poor = Any circuit with pings higher than 70ms, or multiple spikes with high latency.

Connection Testing - StarNet Analyzer 14 minute Video Tutorial. Click Training Video.png to view.

Running StarNet Analyzer on a Mac Computer 3+ minute Video Tutorial. Click Training Video.png to view.

Star2Star SNA Guide - Provides a detailed explanation on how Star2Star interpret SNA results. Click Download Icon.jpgto access guide.

Star2Star SNA Presentation - Provides a detailed explanation on the Star2Star StarNet Analyzer. Click Download Icon.jpgto access presentation.

Help with enabling the SNA test

The following guides provide configuration steps for allowing the SNA test through the most common types of Antivirus and Firewall software.                            

Click Download Icon.jpgto access the Using StarNet Analyzer with Norton 360 Security Suite guide.

Click Download Icon.jpgto access the Using StarNet Analyzer with Avira AntiVir Suite guide.

Click Download Icon.jpgto access the Using StarNet Analyzer with AVG Internet Security Suite guide.

Click Download Icon.jpgto access the Using Starnet Analyzer with Windows Firewall guide.

Click Download Icon.jpgto access the Using StarNet Analyzer with Trend Micro Internet Security Suite guide.

 

 

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