SearchTelecom has just published my new article: Traffic grooming in optical networks: Making real-world choices. If you’re new to the optical networking (or if you’ve been bedazzled by vendors’ marketing departments), you’ll probably find it a useful introductory text.
As the production-grade all-optical traffic grooming solutions don’t exist yet, the only short answer anyone (apart from people trying to sell you specific gear) can give you on this topic is “it depends”. You have to evaluate your needs, do several alternative designs, and find the design that best fits your needs, your budget and your long-term cost expectations.
We migrated our blog a few days ago, and the commenting functionality is not there yet. In the meantime please find our content on LinkedIn and comment there.