In this DemoFriday™, CALIENT Technologies, InMon, and Cumulus Networks demonstrate a programmable hybrid data center network that detects and offloads elephant flows from a Layer 2/3 network fabric to a pure photonic Layer 1 optical circuit switched network.
CALIENT, Cumulus and InMon SDN Optimization Demo Synopsis:
Modern cloud-scale data centers support a variety of traffic patterns, from traditional, short-lived mouse flows to more persistent elephant flows. While mouse flows are typically associated with “bursty,” latency-sensitive applications, elephant flows include traffic from virtual machine migrations, backup and data migrations, and Big Data applications such as Hadoop. The majority of flows within a data center typically are mouse flows, but the majority of data belong to a few elephant flows.
Unfortunately, elephant flows tend to fill network buffers end-to-end, which adds significant queuing delay to the mouse flows that share these buffers. The more latency-sensitive mouse flows suffer from increased latency caused by elephant flows.
In this DemoFriday™ from September 19, CALIENT, InMon, and Cumulus Networks demonstrate a programmable hybrid data center network based on real-time traffic patterns and specific application priorities. Offloading the elephants facilitates more efficient and cost-effective delivery of the flows while freeing the Layer 2/3 network to focus on handling the short-lived mouse flows it services very effectively.
The demonstration showcases a controller developed by CALIENT that uses InMon sFlow and sFlow RT components to detect elephant flows between bare metal top-of-rack switches running Cumulus Linux. The controller offloads and reroutes the flows through a CALIENT S320 optical circuit switch.
Watch the SDN Optimization DemoFriday™ full presentation featuring CALIENT, InMon, and Cumulus Networks or take a look at these additional resources: