# Energy-Saving in IP Over WDM Networks by Putting Protection Router Cards to Sleep

> Research article (Journal of Lightwave Technology, 2018) · cited 12× · AI/ML

**Wikidata**: [openalex:W2799427721](https://www.wikidata.org/wiki/openalex:W2799427721)  
**Source**: https://4ort.xyz/entity/energy-saving-in-ip-over-wdm-networks-by-putting-protection-router-cards-to-sleep