Modern cloud-scale data centers support a variety of traffic patterns, including traditional short-lived “mouse” flows and more persistent “elephant” flows. In an upcoming DemoFriday™ on Sept. 19, Calient Technologies, InMon, and Cumulus Networks will demonstrate a programmable hybrid data center network that detects and offloads elephant flows from a Layer 2/3 network fabric to a purely photonic, Layer 1, optical circuit switched network.
Mouse flows are typically associated with bursty, latency-sensitive applications, while 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. In a network of elephant and mouse flows, the more latency-sensitive mouse flows suffer from increased latency due to the collateral damage caused by the elephant flows.
Join us on Sept. 19, when Calient, InMon, and Cumulus 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 very effectively.
The demonstration will showcase 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 will offload and reroute the flows through a Calient S320 optical circuit switch.
Join us for the DemoFriday™ when we webcast it live on Sept. 19 at 10:00 a.m. PDT.
This DemoFriday has already occurred. You may view the archived assets here.