A Global OTN Enabling Global Business to Operate at the Speed of Light

The move to cloud-based architectures has provided numerous benefits to companies in terms of the cost and performance of their compute resources. In addition to enabling companies across all verticals to use what they need, when they need it, without paying for what they don’t need, operating in the cloud has turned the age-old CapEx model into a recurring OpEx model that makes sense for the bottom line while still allowing companies to operate a global business at the speed of light.

Optical Transport Networks (OTNs)

At the heart of a cloud-based approach are the data centers – huge, often colorless buildings filled with servers that consume more power than most small cities.  While the immense storage and processing power of these entities is critical, without a high-speed way to connect data centers to each other and to the rest of the world, their value to global business cannot be fully realized. That’s where Optical Transport Networks (OTNs) come in. Offering infinite capacity to move bits and packets around the world faster than ever before, OTNs play a key role in making the network an open and programmable platform, enabling transport to become as important as computing and storage in intelligent data center networking.

Recognizing the importance an OTN-based network can play in supporting the needs of global business, China Telecom – the parent company of China Telecom Americas – has long been an adopter and advocate of deploying optical networks globally. China Telecom’s Global Wavelength Service (GWL) provides private and exclusive 10Gbps or 100Gbps lines to customers, guaranteeing comprehensive access to bandwidth and ensuring those customers get what they purchased. The GWL service supports various interfaces which can adapt to individual service requirements and are backed by competitive SLAs. An industry-leading Global Network Operations Center provides 24×7 real-time monitoring, troubleshooting and maintenance.

China Telecom has built OTNs that span the globe

China Telecom has built OTNs that span the globe – traversing vast distances over land and under the sea – and provide the highest quality bandwidth of more than 7000G. China Telecom offers more than 15 routes across the Pacific, Europe and Asia, and provides direct connections to Beijing, Shanghai, Guanzhou, Chongming, Shantou, Hong Kong, Singapore, Los Angeles, San Jose, London, Frankfurt, and Stockholm – ensuring customers can do business wherever business gets done globally.

While China Telecom’s OTNs demonstrate real value to customers each day, the company isn’t resting on its laurels. China Telecom has developed a comprehensive plan to continue investing in a global OTN focused on leveraging advances in technology that allow it to deliver the highest quality bandwidth at the lowest possible cost per bit to its customers. Proof of this commitment can be seen in the Shenzhen Branch of China Telecom’s recent completion of the first commercial trial of 400G OTN cluster system together with ZTE Corporation. Pushing the physical limits of what can be delivered on a single wavelength, the system supports a maximum of 64-wavelength 400G with a capacity 3.2 times that of a 100G system.

China Telecom’s commitment to innovation

China Telecom’s commitment to innovation relies on its ability to tap the latest advancements and to always keep an eye to what is next on the horizon. Today, China Telecom is preparing its networks for the 5G era which will accelerate the convergence of a new breed of services and applications at the edge in ways we have never seen. China Telecom, and China Telecom Americas, see this as an opportunity, not to deploy technology for technology’s sake, but to continually allow our customers to conduct global business at the speed of light.

China Telecom Americas, a wholly-owned US-based subsidiary of China Telecom Corp. Ltd., is an international telecom provider for Data, IP and Voice Wholesale services to multinational companies, organizations and international carriers requiring China domestic services and International access to China & Asia Pacific.

With headquarters in Herndon, Virginia, and offices in Chicago, Los Angeles, Dallas, New York, San Jose, and subsidiaries in Toronto, Canada, and Sao Paolo, Brazil, China Telecom Americas continues to expand its strength and reach.

China Telecom Americas provides locally based, one-stop-shop, turnkey solutions for everything from China domestic and international data circuits to IDC services, network management, equipment management, system integration, and much more.

For additional information on China Telecom Americas, please visit www.ctamericas.com.


China Telecom Completes First Phase of Global Optical Transport Network (OTN)

With increasing demand for bandwidth in China, continued investments in optical wavelength transmission capacity have been needed to relieve chokepoint congestion and improve enterprise application delivery.  China Telecom has addressed this need with the completion of Phase 1 of its next generation global Optical Transport Network (OTN).  The new OTN looks to eliminate such nagging problems that enterprise customers are facing with long delivery times and difficult bandwidth adjustment.

China Telecom’s new OTN brings many features

China Telecom’s new OTN brings many features such as bandwidth-on-demand, low latency, high speeds and reliability, and wide coverage.  These features look to improve on the status quo when it comes to enterprise service.  Other features that OTN also bring to the table include cloud network integration features, comprehensive end-to-end protection, 50 ms automatic recovery, and a guaranteed 99.99% network uptime.  A self-service portal with the ability to adjust bandwidth and an initial service delivery time of 7 days round out the features for China Telecom’s new OTN.

Speed is vitally important to any network and China Telecom reads you loud and clear.  The premium Optical Transport Network exceeds 300 Tbps and can have a cap of 100G which is 40 times higher than the current SDH network.  Providing high speeds across the network with 2M-100G end-to-end channels covering wide ranges of service bandwidth granularity.  The OTN also provides support for both TDM services for STM1/4/16/64 and packet services for Fast Ethernet (Fast-E), Gigabit Ethernet (Gig-E), 10G Ethernet and 100G Ethernet.

Due to China Telecom’s system upgrade of their incumbent optical network and equipment, low-bandwidth latency of metropolitan networks will lower by more than 50%.  This improvement will also shave ping times down between cities with one-way delays lowered to less than 5.5ms per 1000 km.

China Telecom is introducing their new OTN in phases

China Telecom is introducing their new OTN in phases with Phase 1 being completed this past Summer.  Phase 1 covered 16 cities including:  Shanghai, Beijing, Shenzhen, Hangzhou, Guangzhou, Nanjing, Chengdu, Wuhan, Tianjin, Suzhou, Chongqing,  and Xi’an.  The remaining 112 cities that will take part in the OTN will be successfully rolled out and operational by December 2019 and include Points-of-Presence (PoPs) at key interconnection data centers globally.

Huawei Assists China Telecom to Build 5G-oriented C-RAN Fronthaul Network

Huawei announces that its Blade optical transport network (OTN) solution will assist China Telecom (Liaoning) in building a 5G-oriented cloud radio access network (C-RAN) fronthaul network. These fronthaul networks will enable Liaoning Telecom to effectively cope with denser site deployment requirements in the future 5G era in addition to further improving the existing 4G network coverage. As a result, Liaoning Telecom can greatly improve users’ access bandwidth and user experience of mobile broadband access.

There will be a severe shortage of fiber resources in the coming 5G era

To meet the ever-increasing user experience requirements of mobile broadband, Liaoning Telecom implemented the comprehensive coverage of e-Surfing 4G+ networks. It has been gradually adopting C-RAN architecture to cope with difficulties in site acquisition and energy consumption. However, because C-RAN network architecture consumes a large amount of fiber resources at the access layer, there will be a severe shortage of fiber resources in the coming 5G era due to the requirement of denser site deployment. Liaoning Telecom is in urgent need of a new solution that will allow it to conserve fiber resources and quickly improve wireless network coverage.

As the sub-solution of the X-Haul solution, Blade OTN is fronthaul-oriented and can effectively meet Liaoning Telecom’s network deployment requirements. Blade OTN uses Huawei’s Turbo WDM Technology to achieve the industry’s largest 100G bandwidth using 10G optical components. It supports a maximum of 15 channels of Common Public Radio Interface (CPRI, as C-RAN fronthaul interface) access, and implements aggregation of multiple service channels at the lowest total cost of ownership (TCO), helping Liaoning Telecom reduce core fiber requirements by over 90%.

The optimal intelligent design of this solution eliminates wavelength planning, automatically provisions services upon power-on, and remotely locates faults, meeting the rapid network deployment and automatic O&M requirements of C-RAN fronthaul networks. Line-side 1+1 and ring network protections are configured to improve the reliability of C-RAN fronthaul networks. In addition, cascading ensures the smooth network evolution towards 5G fronthaul networks, and protects live-network investments.

To promote the development of the UBB industry and explore ways to boost service growth, Ultra-Broadband Forum (UBBF) 2017, will be held from October 18 to October 19, 2017 in Hangzhou, China. This UBBF will focus on the topics of ‘New Growth with B2B’, ‘Deliver the Video Dividends’, ‘Accelerate Gigaband Society’, ‘Towards 5G Era’, and on the innovation of All-Cloud Network solutions. Huawei will comprehensively demonstrate how X-Haul will help operators keep up with service requirements in the 5G era, promoting the full deployment of 5G bearer networks.

To view the original article, please visit Huawei

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