Sigma Networks, a venture capital-based telecommunications start-up offers Metropolitan Area Networks (MANs) that use fiber-optic cables to local Internet service providers (eg ISPs, hosting companies) with a long-range (“backbone”) connect to the network. MANs provide a capacity bottleneck in the provision of broadband services. This case describes the challenges Sigma is in the use of this option, including: 1) the decision on its network architecture (build vs. lease dark fiber, Ethernet vs. sonet fo … Read More »

Sigma Networks, a venture capital-based telecommunications start-up offers Metropolitan Area Networks (MANs) that use fiber-optic cables to local Internet service providers (eg ISPs, hosting companies) with a long-range (“backbone”) connect to the network. MANs provide a capacity bottleneck in the provision of broadband services. This case describes the challenges Sigma is in the use of this option, including: 1) the decision on its network architecture (build vs. lease dark fiber, Ethernet vs. sonet focus), 2) the decision to target customers (enterprise vs. Telekom carriers and Internet service providers) and 3) to decide how many metro areas to pursue simultaneously in a capital-constrained environment
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from
Thomas R. Eisenmann,
Christina Darwall
Source: Harvard Business School
31 pages.
Publication Date: Nov 28, 2001. Prod #: 802 103 PDF-ENG
Sigma Networks, Inc. HBR case solution

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