STAR (leased network)

STAR (leased network)
Name	STAR (leased network)
Type	Leased-line network
Founded	1980s
Owner	Consortium of carriers
Area served	International
Industry	Telecommunications

STAR (leased network) is a long-distance leased network operated by a consortium of telecommunications carriers and service providers. The network provided dedicated transmission circuits, backbone switching, and interconnection services between major metropolitan, financial, and switching centers. It played a role in cross-border traffic, enterprise private-line services, and carriage for wholesale carriers.

History

The network emerged during the deregulation and privatization waves of the 1980s and 1990s involving entities such as British Telecom, France Télécom, Deutsche Telekom, AT&T, Verizon Communications, MCI Communications, Nippon Telegraph and Telephone, and regional incumbents. Early deployments used technologies promoted at standards bodies including the International Telecommunication Union, the European Telecommunications Standards Institute, and the Institute of Electrical and Electronics Engineers. Consortium agreements involved carriers, equipment vendors like Siemens, Nokia, Alcatel-Lucent, and Huawei, plus systems integrators such as IBM and Cisco Systems. Policy shifts from the World Trade Organization and bilateral agreements influenced interconnection frameworks and cross-border provisioning. Expansion followed major submarine cable projects associated with companies like Tyco International and consortia tied to the Atlantic Cable and Pacific crossing initiatives.

Network Architecture and Technology

Design principles followed layered architectures standardized by ITU-T recommendations and IETF protocols, combining circuit-switched infrastructures with packet-based overlays. Core trunks used Dense Wavelength Division Multiplexing systems supplied by Ciena, Adva Optical Networking, and Corning Incorporated fiber, interworking with Synchronous Digital Hierarchy links referenced in G.707 and G.709 specifications. Metropolitan access rings used Synchronous Optical Networking in North America standards tied to ANSI T1.105 and regional variants. Switching and transport incorporated multi-service provisioning platforms developed by Ericsson and Juniper Networks, while signaling and management leveraged protocols from ITU-T X.25 lineage and Multiprotocol Label Switching defined by IETF RFC 3031. Network management suites referenced models from TeleManagement Forum and performance metrics aligned with benchmarking from Ookla and industry carriers.

Operations and Services

Operational control centers mirrored practices of major operators such as Telefonica and Orange S.A., with Network Operations Centers coordinating with carriers like Sprint Corporation and wholesale platforms. Services included dedicated leased lines, point-to-point private circuits for enterprises like Goldman Sachs and Citigroup, inter-carrier transit, and wholesale IP transit used by content delivery networks including Akamai Technologies and cloud providers like Amazon Web Services, Microsoft Azure, and Google Cloud Platform. Service-level agreements referenced industry norms set by ETSI and carrier coalitions. Billing and settlement systems interfaced with clearinghouses and number portability frameworks handled through regional regulators such as Federal Communications Commission, Ofcom, and Agence nationale des fréquences.

Coverage and Infrastructure

Physical footprint included terrestrial fiber backbones linking hubs in cities such as New York City, London, Paris, Frankfurt, Tokyo, Singapore, Hong Kong, Sydney, Los Angeles, and São Paulo. International reach relied on submarine cable landings coordinated with consortia behind MAREA, SEA-ME-WE, and other transoceanic systems, while peering and exchange points connected to LINX, AMS-IX, DE-CIX, and regional Internet exchanges. Cable routes traversed physical crossings managed with input from port authorities and cable landing operators, with redundancy plans referencing major disaster response playbooks used by FEMA and municipal emergency services in large urban centers.

Commercial and Regulatory Issues

Commercial arrangements involved carriers, wholesale resellers, and multinational corporations negotiating open-access terms, interconnection tariffs, and capacity leases often influenced by competition authorities such as the European Commission Directorate-General for Competition and the Federal Communications Commission. Regulatory debates covered unbundling, market dominance, and spectrum coordination in adjacent wireless markets addressed by agencies like International Telecommunication Union Radiocommunication Sector. Anti-trust inquiries sometimes engaged authorities including the U.S. Department of Justice and national competition bureaus. Financing of upgrades drew on investment from infrastructure funds, sovereign wealth entities, and capital markets, engaging Goldman Sachs, Deutsche Bank, and international investors.

Incidents and Impact

Notable incidents mirrored sector-wide events: submarine cable cuts affecting traffic patterns as seen in incidents impacting SEA-ME-WE, large-scale outages prompting regulator inquiries like those involving Ofcom and FCC reports, and cyber incidents leading to coordinated responses from CERTs and national cyber agencies such as US-CERT and ENISA. Service interruptions impacted financial markets in cities with exchange hubs like New York Stock Exchange and London Stock Exchange, and spurred resilience investments influenced by best practices from International Organization for Standardization standards. The network's legacy influenced wholesale market structures, carrier-neutral facilities, and subsequent generations of fiber infrastructure developed by infrastructure operators and network equipment vendors.

Category:Telecommunications networks