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All posts by Archana Kesavan

Network Performance Monitoring for Cisco Hybrid WAN

Posted by on February 12th, 2018
February 15th, 2018

Enterprise networks are rapidly transforming, disrupting classic network boundaries and giving way to WAN architectures that are hybrid in nature. With SaaS applications mainstreaming, cloud migrations inflight and SD-WAN deployments on the rise, the enterprise branch is becoming intelligent now more than ever. The benefits of these new trends are undeniable, however, it comes with its own challenges, especially in the area of network performance monitoring and cloud visibility.… Read More »

Nerding Out at Networking Field Day 17

Posted by on January 30th, 2018
January 30th, 2018

On January 24th, 2018 ThousandEyes took center stage at Networking Field Day 17 (NFD17). ThousandEyes is no stranger to NFD and as before, we had a great session filled with in-depth conversations and geeky humor. For those of you less familiar with NFD, it is a multi-day event organized as a part of Tech Field Day by Gestalt IT, that brings together product vendors and independent IT leaders.… Read More »

How United Airlines Manages Visibility for a Global Network

Posted by on January 24th, 2018
January 24th, 2018

This October, we took ThousandEyes Connect to Chicago for the first time and were thrilled to host customer speakers from United Airlines and JLL. In this post, we will summarize the presentation by Brandon Mangold, Principal Operations Engineer at United Airlines. In his talk at ThousandEyes Connect, Brandon walked through the United Airlines and ThousandEyes journey while highlighting the importance of correlating visibility across multiple networks and applications to manage a global network. … Read More »

Top Internet and Cloud Outages of 2017

Posted by on January 17th, 2018
January 17th, 2018

Now that we have rung in the new year and settled into our daily routine, let’s take a few minutes to reflect on the state of the Internet and key outages that shook the world in 2017. Over the past few years, as we analyze many such outage events, we’ve noticed an undeniable trend that governs today’s cloud era: The Internet is the backbone of human communication. We start and end our day with it. Be it calling a ride to work or ordering dinner on the way back, the Internet has a part to play in our quality of life. Which is why when it breaks, it causes havoc.… Read More »

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 »

How Intuit Monitors Connectivity to AWS

Posted by on July 31st, 2017
July 31st, 2017

Our most recent ThousandEyes Connect in Santa Clara had a star-studded lineup of customer speakers from PayPal, Intuit and Netflix. In this post we summarize the presentation from Daniel Shanahan, Staff Network Performance Engineer at Intuit. Daniel is a 15-year veteran in network operations and an expert on network protocol analysis and application performance who is responsible for the performance analytics of infrastructure for the TurboTax platform.… Read More »

Complete VoIP Visibility with SIP and RTP

Posted by on June 21st, 2017
July 13th, 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 »

Best Practices for an Internet-based SD-WAN

Posted by on May 3rd, 2017
May 3rd, 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 »

Introduction to DNSSEC Monitoring

Posted by on March 31st, 2017
March 31st, 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 »

How Virtual Private Networks Impact Performance

Posted by on February 14th, 2017
February 14th, 2017

If you’ve ever had to connect to a corporate network while working remotely, chances are you are familiar with the concept of Virtual Private Networks (VPNs). VPNs establish a secure connection from your device to any other part of the network by wrapping an additional layer of security and privacy to your online activity. VPNs are an indispensable part of… Read More »