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OpenFlow Based Load Balancer

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FlowScale is a project to divide and distribute traffic over multiple physical switch ports. FlowScale replicates the functionality in load balancing​ appliances but using a Top of Rack (ToR) switch to distribute traffic. Using software to handle the control plane specification but switch hardware to do the forwarding gives both great flexibility and allows for low cost, high throughput deployments.

Key Features


Software may be available as a binary for Linux environments or as a source tarball.

Source software is available at GitHub

Quick Start Guide gives instructions on how to get started either by downloading the source code or the binary files.

Design documents


FlowScale is currently being deployed as part of the Intrusion Detection Systems operated by the Indiana University Information Security Office



Mailing lists

FlowScale Developers mailing list: [Archives]

FlowScale Announcements mailing list: [Archives]

Bug Tracking and Feature Requests

Issues are being tracked in Github issue tracking