Arista's XVR-10008-20 is a 10GBASE-ER SFP+ optical transceiver (LC duplex) designed for duplex single-mode fiber links up to 40 km, enabling 10 Gbps connections between Arista switches and other network gear. It operates at 1550 nm and supports Digital Diagnostics Monitoring (DDM/DOM) for live optical health data. As an Arista SFP-10G-ER compatible module, it is well-suited for data-center spine/leaf uplinks or campus interconnects that require long‑reach SMF performance.
