blog.sflow.com
sFlow: ECMP visibility with Cumulus Linux
http://blog.sflow.com/2015/03/ecmp-visibility-with-cumulus-linux.html
SDN analytics and control using sFlow standard. Friday, March 13, 2015. 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 automatically pick up their operating systems and configurations for the complex Equal Cost Multi-Path (ECMP) routed network shown in the diagram. Topology discovery with Cumulus Linux. The first iperf test ac...
blog.sflow.com
sFlow: Sampling rates
http://blog.sflow.com/2009/06/sampling-rates.html
SDN analytics and control using sFlow standard. Friday, June 26, 2009. A previous posting discussed the scalability and accuracy of packet sampling. And the advantages of packet sampling for. Configure sFlow monitoring on all interfaces on the switch for full visibility. Packet sampling is implemented in hardware so all the interfaces can be monitored with very little overhead. Finally, select a suitable counter polling interval so that link utilizations. For an explanation). For example, to trend ut...
blog.sflow.com
sFlow: Measurement delay, counters vs. packet samples
http://blog.sflow.com/2013/02/measurement-delay-counters-vs-packet.html
SDN analytics and control using sFlow standard. Tuesday, February 5, 2013. Measurement delay, counters vs. packet samples. This chart compares the frame rate reported for a switch port based on sFlow interface counter. Measurements (shown in blue. Respectively). The chart was created using sFlow-RT. Which asynchronously updates metrics as soon as new data arrives, demonstrating the fastest possible response to both counter and packet sample measurements. Line, trending the ifinucastpkts. Reducing the cou...
blog.sflow.com
sFlow: SDN fabric controller for commodity data center switches
http://blog.sflow.com/2014/05/sdn-fabric-controller-for-commodity.html
SDN analytics and control using sFlow standard. Saturday, May 31, 2014. SDN fabric controller for commodity data center switches. Figure 1: Rise of merchant silicon. Figure 1 illustrates the rapid transition to merchant silicon. Among leading data center network vendors, including: Alcatel-Lucent, Arista, Cisco, Cumulus, Dell, Extreme, Juniper, Hewlett-Packard, and IBM. Figure 2: Fabric: A Retrospective on Evolving SDN. The article, Fabric: A Retrospective on Evolving SDN. Describes the challenge of pose...
blog.sflow.com
sFlow: OpenNetworking.tv interview
http://blog.sflow.com/2015/03/opennetworkingtv-interview.html
SDN analytics and control using sFlow standard. Monday, March 23, 2015. Interview includes a wide ranging discussion of current trends in the software defined networking (SDN), including: merchant silicon, analytics, probes, scaleability, Open vSwitch, network virtualization, VxLAN, network function virtualization (NFV), Open Compute Project, white box / bare metal switches, leaf and spine topologies, large "Elephant" flow marking and steering, Cumulus Linux, Big Switch, orchestration, Puppet and Chef.
blog.sflow.com
sFlow: DDoS mitigation with Cumulus Linux
http://blog.sflow.com/2014/07/ddos-mitigation-with-cumulus-linux.html
SDN analytics and control using sFlow standard. Tuesday, July 29, 2014. DDoS mitigation with Cumulus Linux. Figure 1: Real-time SDN Analytics for DDoS mitigation. Figure 1 shows how service providers are ideally positioned to mitigate large flood attacks directed at their customers. The mitigation solution involves an SDN controller that rapidly detects and filters out attack traffic and protects the customer's Internet access. The following command line argument load the script:. Tool can be used to sim...
blog.sflow.com
sFlow: ONS2014 SDN Idol finalist demonstrations
http://blog.sflow.com/2014/03/ons2014-sdn-idol-finalist-demonstrations.html
Telemetry, analytics, and control with sFlow standard. Tuesday, March 4, 2014. 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 presented is Real-time SDN Analytics for DDoS mitigation. ONS2014 Announces Finalists for SDN Idol 2014. Provides some sFlow related trivia relating to the finalists. March 5, 2014 Update:.
blog.sflow.com
sFlow: Open vSwitch 2014 Fall Conference
http://blog.sflow.com/2014/12/open-vswitch-2014-fall-conference.html
SDN analytics and control using sFlow standard. Monday, December 1, 2014. Open vSwitch 2014 Fall Conference. Open vSwitch is an open source software virtual switch that is popular in cloud environments such as OpenStack. Open vSwitch is a standard Linux component that forms the basis of a number of commercial and open source solutions for network virtualization, tenant isolation, and network function virtualization (NFV) - implementing distributed virtual firewalls and routers. Peter Phaal, InMon). The H...
