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All posts by Young Xu

Best Practices to Combat Route Leaks and Hijacks

Posted by on January 26, 2017

In past blogs, we’ve explored how you can alert for and diagnose BGP route leaks and hijacks. Route leaks and hijacks—routing events where illegitimate prefixes are wrongly propagated through the Internet—are notoriously difficult to troubleshoot and have the potential to bring down entire swaths of the Internet.… Read More »

What Does Collective Intelligence Mean for Network Ops?

Posted by on January 4, 2017

Over the past year, we’ve witnessed the development of a new and important movement in the networking community: Collective Intelligence. While the meaning of Collective Intelligence has evolved, its emergence indicates an increasingly apparent need for useful data collected from a variety of vantage points, that is efficiently analyzed to produce actionable insights.… Read More »

Running Low Latency on Hi-Rez’s Online Gaming Network

Posted by on December 21, 2016

In this post from ThousandEyes Connect New York, we’ll summarize the presentation by Nabil Ismail, VP of Operations & Technology at Hi-Rez Studios. During his talk, Nabil described his team’s formidable task of ensuring that they continually provide a smooth, fast online experience to their 15+ million gamers across the globe.… Read More »

Optimizing WAN to Deliver SharePoint Online Globally

Posted by on December 16, 2016

In this post from ThousandEyes Connect New York, we’ll summarize the talk by Scot Clark, Enterprise Infrastructure Solutions Manager at a Forbes Top 150 multinational consumer goods company. During his talk, Scot described how his company’s WAN has evolved, as well as the business’ continuing migration to the cloud.… Read More »

NANOG 68: Decoding Performance Data from Large-Scale Internet Outages

Posted by on November 7, 2016

At NANOG 68 in Dallas, TX on October 18, 2016, ThousandEyes CEO Mohit Lad presented on recent outages that had large-scale effects on Internet infrastructure and availability. During his talk, Mohit discussed three recent, impactful events: the June 2016 DNS root server DDoS, the May 2016 Sea-Me-We-4 cable cut and the April 2016 AWS route leak. … Read More »

Comprehensive Alerting for Route Leaks and Hijackings

Posted by on September 20, 2016

In past blogs, we’ve explored a specific BGP issue that can have far-reaching, large-scale impacts on networks across the Internet: route leaks and hijackings. In this post, we’ll discuss alerting for leaks and hijacks, which is the first step in the process of detecting, diagnosing and ultimately mitigating these notoriously difficult-to-troubleshoot events.… Read More »

Identifying Root Cause with Routing Outage Detection

Posted by on July 26, 2016

In the second installment of our exploration of the new Internet Outage Detection features, we’ll delve into the dark art that is BGP routing. When routes go awry, prefixes often become unreachable, and impacts can reverberate throughout the network stack to cause issues in the network and application layers. When large-scale outages like this happen, it’s often difficult to correlate the network and routing layers and pinpoint the root cause of routing problems.… Read More »

Analyzing Internet Performance Issues with Traffic Outage Detection

Posted by on July 26, 2016

If you’ve ever suffered from a large-scale outage and not known where to turn for reliable updates and information, you’re not alone. Today’s launch of Internet Outage Detection marks the culmination of months of hard work, and we’re excited to share a range of new features that harnesses the power of data aggregated from our entire user base to provide insights in the face of an outage. You’ll be well equipped to diagnose issues and make quick, well-informed decisions while you’re fighting network fires.… Read More »

DDoS Attack Has Varying Impacts on DNS Root Servers

Posted by on July 19, 2016

On June 25, 2016, all 13 DNS root servers suffered from a major distributed denial-of-service (DDoS) attack. This wasn’t the first time in recent memory that attacks were aimed at critical DNS infrastructure — at the end of last year, several root servers came under a DDoS attack, and in mid-May NS1 also experienced a DDoS attack that brought down services like Yelp and Alexa. … Read More »

The Ongoing War Between China’s Great Firewall and Circumvention Tools

Posted by on May 11, 2016

In previous posts, we’ve explored many of the pieces that make up China’s vast system of censorship, including the Great Firewall, a huge content-filtering machine, and the Great Cannon, a powerful new DDoS weapon. But that’s just one side of the story—just as Chinese censorship has evolved over time, so too have the methods to evade it. … Read More »