Key functions of the edge network include creating and delivering services on a variety of physical interfaces, and providing service quality and differentiation.
Service providers deploy core networks to serve their edge networks.
Core networks must take advantage of rapidly advancing optical technology and become operationally transparent to edge-delivered services. Service providers deploy hardware, software, and people to maximize the utility of their network while minimizing its capital and operational cost. Obviously, the most profitable WAN service providers are those who are best able to deploy their revenue-generating services at the lowest costs. Finally, it discusses Cisco edge and core platforms, providing pointers for product-specific detail. The edge provides connectivity and services to network customers.