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CloudFlare DDoS Mitigation Pipeline
The Usenix Enigma 2016 talk from Marek Majkowski describes CloudFlare's automated DDoS mitigation solution. CloudFlare provides reverse proxy services for millions of web sites and their customers are...
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Linux bridge, macvlan, ipvlan, adapters
The open source Host sFlow project added a feature to efficiently monitor traffic on Linux host network interfaces: network adapters, Linux bridge, macvlan, ipvlan, etc. Implementation of high...
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Open vSwitch version 2.5 released
The recent Open vSwitch version 2.5 release includes significant network virtualization enhancements: - sFlow agent now reports tunnel and MPLS structures. ... - Add experimental version of OVN. OVN,...
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Microservices
Figure 1:Visibility and the software defined data centerIn the land of microservices, the network is the king(maker) by Sudip Chakrabarti, Lightspeed Venture Partners, makes the case that visibility...
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Network and system analytics as a Docker microservice
Microservices describes why the industry standard sFlow instrumentation embedded within cloud infrastructure is uniquely able to provide visibility into microservice deployments.The sFlow-RT analytics...
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Internet Exchange (IX) Metrics
IX Metrics has been released on GitHub, https://github.com/sflow-rt/ix-metrics. The application provides real-time monitoring of traffic between members in an Internet Exchange (IX). Close monitoring...
View ArticleDocker network visibility demonstration
The 2 minute live demonstration shows how the open source Host sFlow agent can be used to efficiently monitor Docker networking in production environments. The demonstration shows real-time tracking of...
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Minimizing cost of visibility
Visibility allows orchestration systems (OpenDaylight, ONOS, OpenStack Heat, Kubernetes, Docker Storm, Apache Mesos, etc.) to adapt to changing demand by targeting resources where they are needed to...
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Lasers!
Cool! You mean that I actually have frickin' switches with frickin' laser beams attached to their frickin' ports?Dr. Evil is right, lasers are cool! The draft sFlow Optical Interface Structures...
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Network visibility with Docker
Microservices describes the critical role that network visibility provides as a common point of reference for monitoring, managing and securing the interactions between the numerous and diverse...
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Multi-tenant sFlow
This article discusses how real-time sFlow telemetry can be shared with network tenants to provide each tenant with a real-time view of their slice of the shared resources. The diagram shows a simple...
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Cisco SF250, SG250, SF350, SG350, SG350XG, and SG550XG series switches
Software version 2.1.0 adds sFlow support to Cisco 250 Series Smart Switches, 350 Series Smart Switches and 550X Series Stackable Managed Switches.Cisco network engineers might not be familiar with the...
View ArticleBerkeley Packet Filter (BPF)
Linux bridge, macvlan, ipvlan, adapters discusses how industry standard sFlow technology, widely supported by data center switch vendors, has been extended to provide network visibility into the Linux...
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sFlow to IPFIX/NetFlow
RESTflow explains how the sFlow architecture shifts the flow cache from devices to external software and describes how the sFlow-RT REST API can be used to program and query flow caches. Exporting...
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Black hole detection
The Broadcom white paper, Black Hole Detection by BroadView™ Instrumentation Software, describes the challenge of detecting and isolating packet loss caused by inconsistent routing in leaf-spine...
View ArticleIdentifying bad ECMP paths
In the talk Move Fast, Unbreak Things! at the recent DevOps Networking Forum, Petr Lapukhov described how Facebook has tackled the problem of detecting packet loss in Equal Cost Multi-Path (ECMP)...
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Mininet flow analytics
Mininet is free software that creates a realistic virtual network, running real kernel, switch and application code, on a single machine (VM, cloud or native), in seconds. Mininet is useful for...
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Mininet dashboard
Mininet Dashboard has been released on GitHub, https://github.com/sflow-rt/mininet-dashboard. Follow the steps in Mininet flow analytics to install sFlow-RT and configure sFlow instrumentation in...
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OpenNSL
Open Network Switch Layer (OpenNSL) is a library of network switch APIs that is openly available for programming Broadcom network switch silicon based platforms. These open APIs enable development of...
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Raspberry Pi real-time network analytics
The Raspberry Pi model 3b is not much bigger than a credit card, costs $35, runs Linux, has a 1G RAM, and powerful 4 core 64 bit ARM processor. This article will demonstrate how to turn the Raspberry...
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