In acquiring Catena, Ciena gained Catena’s CN 1000 and CNX-5 products. Ciena now focuses the CN 1000 on addressing ongoing CLEC co-location migration efforts from UNE-P to facilities-based UNE-L. This report contains insight and analysis of the product or service strengths and weaknesses, list of buying criteria and how the product or service fares in each category, and a comprehensive table of product or service metrics and specifications. This report is useful for purchasers who need to evaluate products, or as a source of competitive intelligence for vendors.