Spirent TestCenter OpenFlow Controller Emulation, now part of VIAVI, provides a leading solution for benchmarking flow scalability and forwarding performance of OpenFlow‑enabled high‑speed Ethernet and virtual network devices. It delivers the empirical data needed to validate whether OpenFlow devices and SDN applications can meet business requirements without impacting user experience. As networks transition to software‑defined architectures, OpenFlow devices must interoperate with traditional Ethernet switches using VLANs, MPLS, and routing protocols like BGP, OSPF, and IS‑IS. This emulation tests scalability and coexistence, ensuring controllers and devices perform reliably in mixed SDN and legacy environments.

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