When Internet outages happen, they can be extremely disruptive to your business. By preventing users from reaching your applications and services, outages can cause major revenue and reputation damage. While application delivery is dependent on many Internet Service Providers (ISPs), it also increasingly relies on a large and complex ecosystem of Internet-facing services — such CDN, DNS, DDoS mitigation and public cloud.…
ThousandEyes agents can help you understand and troubleshoot what's happening with your network and infrastructure, giving you visibility from the inside and allowing you to go all the way to the cloud provider. Installing the ThousandEyes private agent is a simple process; the installation script is very easy to use…
This week at ThousandEyes we were thrilled to host a Networking Field Day 6 session, a Tech Field Day community event. Fifteen experts in the networking field were hand-chosen to come to the San Francisco Bay Area to participate in a two hour deep dive looks into what's new in…
I would say that RESTful APIs have become the de facto standard for APIs on the web, except that I can't, because REST is not a standard. It's a set of design principles created by Roy Fielding as part of his Ph.D. dissertation. As a result, there is much discussion…
Over the last few years, I’ve seen a lot of discussions and content online that equate the performance of an application with speed, most notably from the web performance and WPO (web performance optimization) communities. The corollary of this trend is to equate end user experience with the time it…
When manually diagnosing network performance issues, there are several techniques that can rely on ICMP probing, e.g. measuring round trip time, measuring end-to-end loss, tracerouting, etc. In this article we will show that ICMP introduces some bias in these measurements, and that by using TCP-based probing we are able to…