Covad Communications provide a broadband, Voice over IP (VoIP) and wireless services. They need to meet the dual challenges of network security and traffic engineering for a leading U.S. service provider - enabling the company to proactively defend against DDoS attacks and optimize network performance. They chose Arbor Networks to overcome these challenges. They implemented Peakflow SP, a single solution that delivers pervasive, cost-effective network visibility and comprehensive threat management to meet network performance and security needs. The results of implementing the Arbor Networks were faster detection and mitigation minimize the impact of DDoS attacks on target customers and reduce costly collateral damage; superior traffic engineering optimizes network performance and lowers cost.