Kentik - Network Flow Analytics

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by Avi Freedman
by Avi Freedman
by Avi Freedman
by Avi Freedman
by Avi Freedman
by Avi Freedman
by Aaron Kagawa, Crystal Li
by Ken Osowski
by Crystal Li, Jim Meehan
by Ken Osowski
by Jim Meehan, Greg Villain
by Crystal Li

Kentik Detect Alerting: Configuring Alert Policies

July 11, 2017

Operating a network means staying on top of constant changes in traffic patterns. With legacy network monitoring tools, you often can’t see these changes as they happen. Instead you need a comprehensive visibility solution that includes real-time anomaly detection. Kentik Detect fits the bill with a policy-based alerting system that continuously evaluates incoming flow data. This post provides an overview of system features and configuration.

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Security in an SD-WAN World

July 06, 2017

As one of 2017’s hottest networking technologies, SD-WAN is generating a lot of buzz, including at last week’s Cisco Live. But as enterprises rely on SD-WAN to enable Internet-connected services — thereby bypassing Carrier MPLS charges — they face unfamiliar challenges related to the security and availability of remote sites. In this post we take a look at these new threats and how Kentik Detect helps protect against and respond to attacks.

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Three Little NetFlow Databases in a Big Bad World

June 26, 2017

Obsolete architectures for NetFlow analytics may seem merely quaint and old-fashioned, but the harm they can do to your network is no fairy tale. Without real-time, at-scale access to unsummarized traffic data, you can’t fully protect your network from hazards like attacks, performance issues, and excess transit costs. In this post we compare three database approaches to assess the impact of system architecture on network visibility.

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Accuracy in Low-Volume NetFlow Sampling

June 19, 2017

NetFlow data has a lot to tell you about the traffic across your network, but it may require significant resources to collect. That’s why many network managers choose to collect flow data on a sampled subset of total traffic. In this post we look at some testing we did here at Kentik to determine if sampling prevents us from seeing low-volume traffic flows in the context of high overall traffic volume.

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News in Networking: Security-Defined Networking, SD-WAN, and Container Strategies

June 07, 2017

The meaning of SDN changed. That is, if you’re working in Cisco’s Security Business. It means “security-defined networking,” which is where they’re focusing. SD-WAN is still hogging the spotlight, but CenturyLink says it’s “no quick fix.” Meanwhile, containers are a big part of AT&T’s network strategy. “Not everything is suited for virtual machines,” said AT&T’s CTO. More after the jump…

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