Procera recently launched ScoreCard, breaking the traditional way of presenting the quality of a mobile or fixed broadband connection. ScoreCard does not focus on the overall theoretical or maximum achieved network speed, but instead measures the network’s capable quality for the applications that subscribers care about. This is needed because Subscribers think about their Over-The-Top Applications and each application has very different requirements for networks to be able to deliver a good quality of experience. The impact of the network quality can be huge among different applications.
To demonstrate, watch this short video simulating a very small amount of packet loss on a network. You will see that this easily more than doubles the page-load times for any typical shopping site on the web.
Packet loss is very common in mobile and fixed broadband networks. In a Radio Access Network, packet loss is normal due to the airwave conditions and sophisticated retransmitting schemes are implemented, often resulting in an overall delay of the session. However, in the fixed networks, packet loss also occurs. A typical scenario is when the load balancing between redundant sites is not configured optimally. One site goes full while the other site still has capacity – the packets get dropped but it doesn’t look like the network is full.
ScoreCard measures all traffic for every subscriber so it knows what sessions were impacted by various network conditions. With ScoreCard the applications are classified into 7 easy to understand categories commonly used by subscribers
- Web Surfing
- Streaming Video
- Social Media
- Real-Time Gaming
- Voice Applications
ScoreCard monitors the network and rates its capability to delivery quality for each of the categories. ScoreCard then presents a simple to understand score format scaling from A to F. Splitting subscriber experience by applications is important because the impact of various network interruptions is different for each application type. For example, WebSurfing is impacted a lot by packet loss as demonstrated above, but Streaming Media is not affected as Streaming Media has a play-out buffer that compensates for the network condition.
Network scores are then made actionable by adding different perspectives. In the mobile network, we add the RAN Perspective to add information of the traffic source, so the score and quality metrics can be compared between cell IDs. In a fixed network, we add a Topology Perspective to separate and compare traffic from different sites and nodes in the network. Misconfigurations are then easily found and can show the impact on the subscriber experience.
Click on the button below to see a demo of the ScoreCard webinar, or watch the packet loss on the network video below.
[VIDEO] Impact of Network Quality on Web Surfing
|Hello, welcome to this Procera demonstration about stimulating subscriber experience. I have this tool called network link conditioner and I will show you what 2% packet loss feels like when surfing a normal shopping portal. First, I’ll keep these off and I will start Safari, clear the cache and starts the web inspector. In the timing sheet here, we will be able to see how long the network download time is. Now I go to a popular site for female clothing. Together with all of the ads, the download time for this site is 4.37 seconds, okay? Go back here, clear the cache, quit Safari, turn on my profile for 2% packet loss, 2% in the downlink. Start Safari again showing the web inspector, timing sheets and I go to the same site. It takes significantly longer to download the same amount of content, 17.36 seconds. That shows that just 2% packet loss has a significant impact on the web surfing experience for subscribers. Thank you.|
Topics: Expert Insights