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All posts tagged with: "Network Outage"

Comcast Suffers Outage Due to Significant Level 3 BGP Route Leak

Posted by on November 7th, 2017
November 8th, 2017

On Monday morning, November 6th 2017, from 9:45am-11:25am Pacific, Comcast suffered a nationwide outage sending several million users of the popular Internet Service Provider into a frenzy. Our analysis has revealed that Level 3 leaked over a thousand routes belonging to Comcast subsidiary networks and their customers. The immediate effect was that instead of traffic going through the Comcast backbone to reach these networks, traffic was forced to go via Level 3.… Read More »

What Happened When Marketo’s Domain Name Expired?

Posted by on July 26th, 2017
August 1st, 2017

On Tuesday, July 25th, 2017 at 4:25am Pacific, all services related to Marketo’s domain “marketo.com” began experiencing an outage. The outage continues to have impacts at the time of writing. Marketo is a marketing automation software widely used by companies around the world—when Marketo went down on Tuesday, forms on many companies’ websites broke completely. Many users were unable to access the Marketo platform or even email Marketo employees, since Marketo mail servers were also inaccessible.… Read More »

Rostelecom Route Leak Targets E-Commerce Services

Posted by on May 1st, 2017
May 1st, 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 »

AWS S3 Outage Likely Caused by Internal Network Issue

Posted by on February 28th, 2017
November 10th, 2017

On Tuesday, February 28th, 2017, the US-East-1 region of Amazon Web Services S3 saw a complete outage from 9:40am to 12:36pm PST. AWS S3 (Simple Storage Service) is a cloud object storage solution that many services rely on to store and retrieve files from anywhere on the web. In addition, many other AWS services that depend on S3 – Elastic Load Balancers, Redshift data warehouse, Relational Database Service and others – also had limited to no functionality. … Read More »

What Does Collective Intelligence Mean for Network Ops?

Posted by on January 4th, 2017
February 10th, 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 »

Top Internet Outages of 2016

Posted by on December 20th, 2016
January 18th, 2017

As we sip on warm holiday beverages and gradually wind down the year, it’s rather customary to reflect on the past and contemplate the future. Following traditions, we took a stroll down memory lane analyzing the state of the Internet and the “cloud”. In today’s blog post we discuss some of the most impactful outages of 2016, understand common trends and evaluate some of the key learnings.… Read More »

Three Types of DDoS Attacks

Posted by on November 15th, 2016
November 16th, 2016

Distributed Denial of Service (DDoS) attacks have been a popular topic of discussion in the past few months. We have seen a flurry of prominent DDoS attacks, such as the attacks on DNS root servers and the Dyn DNS outage, with widespread impact and the potential to disrupt communications worldwide.… Read More »

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

Posted by on November 7th, 2016
November 7th, 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 »

Pokémon GO Experiences Network and Application Outages

Posted by on July 28th, 2016
November 10th, 2017

On July 6, 2016, Pokémon GO, the augmented reality gaming phenomenon, launched in the United States, and millions became Pokémon trainers with the dream to “catch’ em all.” By July 7, Pokémon GO was the most downloaded and top-grossing game in the United States. At the time of this writing, the GPS-based game had generated $35 million in revenue from 30 million downloads. … Read More »

Identifying Root Cause with Routing Outage Detection

Posted by on July 26th, 2016
November 10th, 2017

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 »