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Open Networking and IPoDWDM in Production: Operational Lessons from European Networks#

ITNOG10 digest Program Core pick 20–21 April 2026

Alessandro Giudice

  • Why: IPoDWDM with 400G ZR+ pluggables (per the slides filename) is the current frontier of router-integrated coherent optics for DCI/WAN interconnect — and production lessons from real European networks, not vendor spec sheets, are the valuable part.
  • What: Operational experience running open networking / IPoDWDM (400G ZR+) in production across multiple European networks. (title only)
  • How: Coherent 400G ZR/ZR+ pluggables terminated in router ports, collapsing the transponder layer; expect real-world issues around optical budgets, multivendor interoperability, and troubleshooting.
  • Where applicable: DCI and WAN interconnect generally. The multi-network framing suggests lessons transfer beyond a single operator's setup.