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Complete VoIP Visibility with SIP and RTP

Posted by on June 21, 2017

Unified communications (UC) is an integral part of enterprise service delivery. Despite its importance, troubleshooting and maintaining a reliable voice network and end-user experience has always been challenging. Irrespective of the type of voice deployment (on-premises, hybrid or cloud), the impact of the underlying network on voice performance is undeniable. Packet loss, jitter and latency influence voice quality and the sometimes transient nature of these issues makes VoIP troubleshooting tricky.… Read More »

Monitoring IPv6 Networks

Posted by on May 31, 2017

IPv6 has been around for two decades, and yet it is only now making up a meaningful portion of Internet traffic. Reports today find that there are between 10-15 billion Internet-connected devices (each requiring an IP address), yet only 2.8 billion routed IPv4 addresses. The conclusion? Most connected devices do not have unique, public IPv4 addresses and instead utilize network address translation (NAT) to communicate with the Internet.… Read More »

2017 Update: Comparing the Performance of Popular Public DNS Providers

Posted by on May 15, 2017

In May 2015, guest blogger Mehmet Akcin wrote about his findings from measuring and comparing latency to a number of popular public DNS services from hundreds of vantage points located across the globe. But two years have passed since then, and the landscape of public DNS continues to change as sites are added and services are optimized.… Read More »

New in ThousandEyes: Dashboard Widgets, APIs and More

Posted by on May 5, 2017

At ThousandEyes we release new code every two weeks, adding new features, enhancing existing ones and squashing any bugs. Using ThousandEyes to its full potential often requires staying on top of these changes. To keep you abreast of areas of product development, we’ll publish a quarterly update of key features and enhancements, in addition to our bi-weekly release notes.… Read More »

Best Practices for an Internet-based SD-WAN

Posted by on May 3, 2017

CIOs and IT executives are constantly challenged with reducing IT spend, optimizing operating expenditures while increasing service agility, delivering and maintaining superior quality of service. Enterprises are constantly searching for innovative solutions to execute on these business objectives.… Read More »

Rostelecom Route Leak Targets E-Commerce Services

Posted by on May 1, 2017

Last week Rostelecom, one of Russia’s largest, partially state-owned Internet service providers, leaked dozens of routes pertaining to IP addresses that belong to major financial services firms. This route leak redirected Internet traffic bound for these financial firms to Rostelcom, as some routers around the Internet decided that the new, leaked routes were preferable to the legitimate ones. … Read More »

Automating Performance Monitoring at Microsoft

Posted by on April 27, 2017

Last week we took ThousandEyes Connect to the road and visited Seattle, bringing together network engineers, architects and site reliability teams to discuss network performance. Scott Hinckley, Sr. Site Reliability Engineer for Microsoft Dynamics 365, opened up the morning presentations.… Read More »

What Is Net Neutrality?

Posted by on April 18, 2017

Over the past 3 years, net neutrality has been a hot political topic as the Obama and Trump administrations have taken diverging positions. Most recently, with a repeal of 2015 privacy protections, the Trump Administration has signalled a move away from the principle of net neutrality. … Read More »

Introduction to DNSSEC Monitoring

Posted by on March 31, 2017

The Domain Name System (DNS) is a cornerstone of the Internet. It is a globally distributed database with a hierarchical structure that maps domain names to IP addresses. While DNS has recently been in the spotlight due to large scale DDoS attacks, its lesser known brother DNS Security Extensions (DNSSEC) has remained in the dark.… Read More »

Monitoring DNS in China

Posted by on March 27, 2017

In our previous post, Monitoring Application Delivery in China, we discussed a myriad of issues that can affect the performance of applications delivered to users in China. Of these issues, difficulties with DNS in China is a topic that deserves its own post — when the packets of a critical service like DNS routinely go missing, the impacts on the delivery of important applications can be enormous.… Read More »