DDoS flood protection
Denial of Service attacks represents a significant impact to on-going operations of many businesses. When most revenue is derived from on-line operation, a DDoS attack can put a company out of...
View ArticleFabric visibility with Cumulus Linux
A leaf and spine fabric is challenging to monitor. The fabric spreads traffic across all the switches and links in order to maximize bandwidth. Unlike traditional hierarchical network designs, where a...
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REST API for Cumulus Linux ACLs
RESTful control of Cumulus Linux ACLs included a proof of concept script that demonstrated how to remotely control iptables entries in Cumulus Linux. Cumulus Linux in turn converts the standard Linux...
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Hybrid OpenFlow ECMP testbed
SDN fabric controller for commodity data center switches describes how the real-time visibility and hybrid control capabilities of commodity data center switches can be used to automatically adapt the...
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OpenFlow integration
Northbound APIs for traffic engineering describes how sFlow and OpenFlow provide complementary monitoring and control capabilities that can be combined to create software defined networking (SDN)...
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Open vSwitch performance monitoring
Credit: Accelerating Open vSwitch to “Ludicrous Speed”Accelerating Open vSwitch to "Ludicrous Speed" describes the architecture of Open vSwitch. When a packet arrives, the OVS Kernel Module checks its...
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Fabric visibility with Arista EOS
A leaf and spine fabric is challenging to monitor. The fabric spreads traffic across all the switches and links in order to maximize bandwidth. Unlike traditional hierarchical network designs, where a...
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Cloud analytics
Librato is an example of a cloud based analytics service (now part of SolarWinds). Librato provides an easy to use REST API for pushing metrics into their cloud service. The web portal makes it simple...
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Broadcom ASIC table utilization metrics, DevOps, and SDN
Figure 1: Two-Level Folded CLOS Network Topology ExampleFigure 1 from the Broadcom white paper, Engineered Elephant Flows for Boosting Application Performance in Large-Scale CLOS Networks, shows a data...
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Topology discovery with Cumulus Linux
Demo: Implementing the OpenStack Design Guide in the Cumulus Workbench is a great demonstration of the power of zero touch provisioning and automation. When the switches and servers boot they...
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ECMP visibility with Cumulus Linux
Demo: Implementing the Big Data Design Guide in the Cumulus Workbench is a great demonstration of the power of zero touch provisioning and automation. When the switches and servers boot they...
View ArticleOpenNetworking.tv interview
The OpenNetworking.tv interview includes a wide ranging discussion of current trends in the software defined networking (SDN), including: merchant silicon, analytics, probes, scaleability, Open...
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Big Tap sFlow: Enabling Pervasive Flow-level Visibility
Today's Big Switch Networks webinar, Big Tap sFlow: Enabling Pervasive Flow-level Visibility, describes how Big Switch uses software defined networking (SDN) to control commodity switches and deliver...
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Analytics and SDN
Recent presentations from AT&T and Google describe SDN/NFV architectures that incorporate measurement based feedback in order to improve performance and reliability.The first slide is from a...
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Leaf and spine traffic engineering using segment routing and SDN
The short 3 minute video is a live demonstration showing how software defined networking (SDN) can be used to orchestrate the measurement and control capabilities of commodity data center switches to...
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Optimizing software defined data center
The recent Fortune magazine article, Software-defined data center market to hit $77.18 billion by 2020, starts with the quote "Data centers are no longer just about all the hardware gear you can stitch...
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WAN optimization using real-time traffic analytics
TATA Consultancy Services white paper, Actionable Intelligence in the SDN Ecosystem: Optimizing Network Traffic through FRSA, demonstrates how real-time traffic analytics and SDN can be combined to...
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SDN router using merchant silicon top of rack switch
The talk from David Barroso describes how Spotify optimizes hardware routing on a commodity switch by using sFlow analytics to identify the routes carrying the most traffic. The full Internet routing...
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White box Internet router PoC
SDN router using merchant silicon top of rack switch describes how the performance of a software Internet router could be accelerated using the hardware routing capabilities of a commodity switch. This...
View ArticleCORD: Open-source spine-leaf Fabric
Live demonstration of SDN leaf and spine traffic engineering recorded at the Open Networking Summit. The open source ONOS controller implements segment routing using OpenFlow 1.3 to control a four...
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