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| Case Studies |
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CASE STUDY: WIRELESS BACKHAUL OPTIMIZATION A Tier 1 mobile carrier was operating a statewide network of more than 1,000 cell sites interconnecting with 2 primary mobile switching centers (MSCs). The carrier was spending more than $15 million annually on local access transport services for backhaul from the cell sites to the MSCs and interconnection from the MSCs to the local telephone company’s (LEC) access tandems. Planned 3G network upgrades promised to double T1 capacity requirements at more than 600 cell sites. BUSINESS CHALLENGE Reduce leased network transport costs in the face of planned capacity growth, while positioning the backhaul network to support 3G broadband data services. NETWORK SOLUTION CFN analyzed the wireless carrier’s embedded access transport circuits, costs, and growth requirements at the facilities level between the cell sites and the MSC, and between the MSC and the public switched network. Leveraging its FiberSource® design platform and network optimization tools, CFN designed an optimized fiber network that directly connected the MSCs and pushed interconnection points with the LEC out from the MSCs to 7 strategically placed LEC central office collocations. Working with one of the leading optical equipment vendors CFN and the vendor designed a managed optical transport platform to displace existing DS1, DS3, and SONET circuits that were at or past term. The platform displaced more than $8 million in gross circuit costs annually from the LEC and delivered net savings of more than $6 million per year. In addition, the optical transport platform was designed to deliver an aggregate capacity of more than 4,000 T1s which included 25% of the unused base capacity available for growth at no additional cost. The final solution delivers:
CASE STUDY: LOCAL ACCESS TRANSPORT OPTIMIZATION BACKGROUND A leading global carrier with more than $30 billion in revenues had launched a strategic initiative to significantly reduce the $10 billion in local access transport costs it was spending with the local telephone companies (LECs). BUSINESS CHALLENGE Look at feasibility for local access network optimization and LEC collocation expansion in markets with a strong existing fiber footprint, a limited existing fiber footprint, and no existing fiber footprint. Build a business case for network expansion across all market types with limited capital deployment and no required operational resource expansion. NETWORK SOLUTION CFN analyzed the carrier’s embedded access transport circuits, costs, and growth requirements at the facilities level for Las Vegas, NV; Norfolk, VA; and Houston, TX where the carrier was spending more than $25 million annual on special access and multiplexing services. Leveraging FiberSource ® CFN iterated the carrier’s capacity requirements and embedded cost structure against the available base of 3 rd party fiber and facilities infrastructure to establish optimized network designs in each of the markets. The CFN team built a business case for the carrier to implement networks in each of the three markets driving $18 million in annual special access cost savings and net transport savings of almost $10 million after deployment of a fully managed fiber transport network including expansion to 36 new LEC central offices. The final solution included:
CASE STUDY: LOCAL ACCESS NETWORK EXPANSION AND LEC COLLOCATION BACKGROUND A leading global carrier with more than $25 billion in revenues had launched a strategic initiative to significantly reduce the $8 billion in local access transport costs it was spending with the local telephone companies (LECs). BUSINESS CHALLENGE Expand the base of LEC collocations in several high cost Tier 2 markets on a limited capital budget with limited operational resources. NETWORK SOLUTION CFN analyzed the carrier’s list of target sites for LEC collocation expansion and developed a plan to reach more than 15 sites across 5 markets for less than a third of the cost and less than half the time than the carrier had planned in its internal business case. The CFN team integrated networks from several 3 rd party fiber owners including the construction of the network extensions and interconnections necessary to deliver a set of seamless dark fiber networks, fiber panel to fiber panel in 15 LEC central offices across 3 different LECs. The CFN team also provided 24x7x365 network management, enabling a single call to support incident response and management of the fiber network across all 5 markets and 15 LEC central offices. The final solution delivered:
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