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SC13 large flow demo
For the duration of the SC13 conference, Denver will host of one of the most powerful and advanced networks in the world - SCinet. Created each year for the conference, SCinet brings to life a very...
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Metric export to Graphite
Figure 1:Cluster performance metricsCluster performance metrics describes how sFlow-RT can be used to calculate summary metrics for cluster performance. The article includes a Python script that polls...
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Exporting events using syslog
Figure 1:ICMP unreachableICMP unreachable described how standard sFlow monitoring built into switches can be used to detect scanning activity on the network. This article shows how sFlow-RT's embedded...
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Integrated hybrid OpenFlow
Figure 1:Â Hybrid Programmable Forwarding PlanesFigure 1 shows two models for hybrid OpenFlow deployment, allowing OpenFlow to be used in conjunction with existing routing protocols. The...
View Articleovs-ofctl
The ovs-ofctl command line tool that ships with Open vSwitch provides a very convenient way to interact with OpenFlow forwarding rules, not just with Open vSwitch, but with any switch that can be...
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Blacklists
Blacklists are an important way in which the Internet community protects itself by identifying bad actors. However, before using a blacklist, it is important to understand how it is compiled and...
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Workload placement
Messy and organized closets are an every day example of the efficiency that can be gained by packing items together in a systematic way: randomly throwing items in a closet makes poor use of the space;...
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Drivers for growth
This article examines the factors that are continuing to accelerate adoption of the sFlow measurement standard as the universal source of analytics in the data center, including: rising popularity of...
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OpenDaylight
This article looks takes the DDoS example and repeats it using the OpenDaylight controller.First install Open Daylight in the Mininet testbed. $ wget...
View ArticleConfiguring Alcatel-Lucent switches
The following configuration enables sFlow monitoring of all interfaces on an Alcatel-Lucent OmniSwitch switch (10.0.0.235), sampling packets at 1-in-512, polling counters every 30 seconds and sending...
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Alcatel-Lucent OmniSwitch analytics driven control
There are a many articles on this blog that demonstrate how real-time sFlow analytics driven control of switches using a Mininet testbed. This article is the first of a series that will shift the focus...
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Physical switch hybrid OpenFlow example
Alcatel-Lucent OmniSwitch analytics driven control provided an example with a physical switch, using the Web Services API to send CLI controls to the switch as HTTP requests, the following screen shot...
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sFlow leads convergence of multi-vendor application, server, and network...
Over the last six months, leading Application Delivery Controller (ADC) vendors F5 and A10 have added support for the sFlow standard to their respective TMOS and ACOS operating systems, making...
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Large flow marking using hybrid OpenFlow
Top of rack switches are in a unique position at the edge of the network to implement traffic engineering controls. Marking large flows describes a use case for dynamically detecting and marking large...
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Flow-aware Real-time SDN Analytics (FRSA)
Today at the OpenDaylight Summit in Santa Clara, Ram (Ramki) Krishnan of Brocade Communications presented a framework and set of use cases for applying software defined networking (SDN) techniques...
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#NFD7 Real Time SDN and NFV Analytics for DDoS Mitigation
Today, at Networking Field Day 7, Ramki Krishnan of Brocade Networks demonstrated how the sFlow and OpenFlow standards can be combined to deliver DDoS mitigation as a service. Ramki is a co-author of...
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Dell, Cumulus, Open Source, Open Standards, and Unified Management
On Thursday, at Network Field Day 7, Arpit Joshipura described Dell's networking strategy. He started by polling the delegates to see which topics were most on their mind.The first topic raised by many...
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ONS2014 Announces Finalists for SDN Idol 2014
Today the Open Networking Summit announced the five finalists for the SDN Idol 2014 competition:Brocade and InMon: Real-time SDN Analytics for DDoS mitigationHP: HP SDN App Store and Open SDN Ecosystem...
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ONS2014 SDN Idol finalist demonstrations
The video of the ONS 2014 SDN Idol final demonstrations has been released (the demonstrations were presented live at the Open Networking Summit on Monday, March 3, 02:30P - 04:00P).The first demo...
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Performance optimizing hybrid OpenFlow controller
The latest release of InMon's sFlow-RT controller adds integrated hybrid OpenFlow support - optimized for real-time traffic engineering applications that manage large traffic flows, including: DDoS...
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