Sigma Networks, a venture capital-based telecommunications startup, provides the city network (MAN), which use fiber-optic lines to connect local Internet service providers (such as Internet service providers, hosting companies) and distant ("backbone") networks. MANs a capacity bottleneck in the provision of broadband services. This case describes the challenges faced by Sigma to use this opportunity, including: 1) making decisions about their network architectures (build vs. lease dark fiber, Ethernet over SONET focus), 2) the decision on which target customers (enterprises compared with telecommunications operators and Internet Service Providers)., 3) decide how many metro areas conducted simultaneously in the capital are limited "Hide
by Thomas R. Eisenmann, Christina Darwall Source: Harvard Business School 31 pages. Publication Date: November 28, 2001. Prod. #: 802103-PDF-ENG