Related topics to your experience & what do you do to day to day works. Most common question about your experiences. 🔹 XDM Series XDM-1000 → Compact, supports STM-1/4/16, ~30–40 Gbps switching capacity. XDM-3000 → Medium chassis, supports STM-1/4/16/64, 10G cards, ~200–320 Gbps capacity. XDM-9000 → Large chassis, supports STM-1 to STM-256, 10G/40G/100G OTN, ~>1 Tbps capacity.