Comprehensive Analysis of 400G ZR+ Application Scenarios
With the rapid growth of cloud services, AI computing, and hyperscale data centers, network bandwidth demand is increasing dramatically. Traditional optical transport architectures based on dedicated transponders are gradually being replaced by coherent pluggable optics . Among them, 400G ZR+ has become one of the most important technologies for modern optical networks due to its ability to deliver long-distance DWDM transmission directly from routers and switches . This article provides a comprehensive analysis of the major application scenarios for 400G ZR+. 1 Data Center Interconnect (DCI) One of the most common use cases for 400G ZR+ is Data Center Interconnect (DCI) . Large cloud providers often operate multiple data centers within a metro or regional area. These facilities must exchange massive amounts of data for: distributed computing AI training storage replication disaster recovery Typical Network Architecture Data Center A —— Data Center B —— Data Center C Each data...