This document discusses the challenges facing modern networks due to increasing traffic volumes, speeds, and complexity. It identifies four key challenges: 1) managing virtualized and hybrid cloud environments, 2) handling higher network speeds like 100Gbps, 3) preventing security issues, and 4) ensuring accurate performance monitoring. It argues that network packet brokers are needed to provide visibility across networks while maintaining speed and filtering redundant data for monitoring tools. The document recommends using advanced packet brokers like cPacket Networks that can scale from 1Gbps to 100Gbps, provide zero packet loss, and optimize network performance monitoring.