Archive of posts with tag 'jitter'

Jitter is a term used to describe variation in the arrival times of packets over a network. In packet switched networks, it is sometimes referred to as packet delay variation. Generally caused by congestion in the IP network, jitter can be a serious issue for interactive real-time traffic, e.g. VoIP. This article discusses how jitter is measured in PathView, and...

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What is a Path? A Path is the network connection from a source to a target, specifically measuring the maximum end to end performance achievable. For example a Path from our office here in Boston to the Salesforce.com instance we use (NA2) located outside of Chicago consists of 12 layer 3 network hops. We have a 100Mbps symmetric internet connection...

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Our Systems Engineering team regularly helps customers deploy PathView Cloud to measure end user experience at remote offices. One of PathView’s unique features is the ability to measure actual achievable network capacity.  T1 class WAN services are a popular way to connect branch offices to corporate data centers and the Internet. I say ‘T1’ class because businesses are deploying WAN services that...

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2011 could be considered the year that network performance management “came of age.” In this past year, IT and network managers in organizations of all sizes and industry segments have become aware — if they weren’t already — that the performance of the network is the foundation of user experience and business success. Why was 2011 such a pivotal year...

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Security is a well-known risk with cloud applications, but…what about bandwidth? More and more businesses are looking to cut costs and improve end customer experience by moving customer-facing applications, storage/backup solutions, and many other applications to distributed data centers in the cloud. If users experience performance or latency problems due to insufficient network bandwidth, such as slow, stalling or failed...

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Every major wireless carrier is racing to deploy 4G branded mobile data services.  Although the mobile data user has been trained to lower his or her performance expectations, the wireless carriers are working hard to change that perception.  Can 4G wireless services support real time applications like voice and video for the mobile office of 1?  Can it replace more...

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Are you considering moving business-critical applications like e-mail, financial management, backup/recovery and CRM to the cloud? Or maybe you’re already on your way? It’s clear that cloud computing has arrived, and businesses of all sizes are taking advantage of it even faster than initially predicted. Gartner rates it as the top strategic technology for 2011, and surveys from MarketBridge, IBM...

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It is a sign of the times that I need to clearly define the term “cloud services” if I am going to use it as an entry point to this blog. And since I wouldn’t dare assert my position to be expert enough to properly define this term (any attempt would surely bog down this entire effort), I will turn...

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