Saturday, April 8, 2017

NTT Com to Deploy 400G in Data Centers

NTT Communications will begin deploying a 400 Gbps optical transmission system in its data centers beginning this month.

The system will raise the transmission capacity of NTT Com's core network above 19Tbps per optical fiber, or more than double existing capacity.

The company said the 400G rate is achieved by using advanced digital-signal processing technology developed in house.

The main features and advantages of the 400G system are as follows:

  • Top-level energy and space savings
  • The new system reduces energy consumption per bps by 75% and space requirements by 80% compared to the existing system. The savings were achieved through a synergistic combination of advanced digital-signal processing technology and 16nm complementary metal-oxide semiconductor (CMOS) technology. Energy-saving integrated circuits can be constructed rapidly, enabling transmitters to be quickly deployed even in confined spaces at data centers.
  • More than double existing transmission capacity
  • The new system achieves more than double the transmission capacity per optical fiber compared to its predecessor system. To generate 400G signals, the system utilizes NTT's 16 quadrature amplitude modulation (QAM) for both phase and amplitude, and sub-carrier multiple transmission.
  • New OTN and 400GbE interfaces

In connection with the deployment, NTT Com will offer new optional network services for enterprises, including the sequential launch of OTN interfaces (OTU2, OTU2e and OTU4) mainly for wholesalers and data center users, and a 400GbE interface incorporating framing technology compatible with OTUCn which is the result from NTT's R&D.

To deliver new services and functions with even greater speed and flexibility, NTT Com will combine SDN technologies and dis-aggregation architecture, which can be redeployed as required according to function or module, replacing existing high-function, all-in-one dedicated equipment.

NTT i3 teams with Dimension Data and Intel to deliver CloudWAN

NTT Innovation Institute (NTT i3), the Silicon Valley innovation centre for the NTT Group, and Internet Solutions (IS), a pan-African telecoms service provider to public and private sector organisations announced that they are collaborating with Intel for the delivery of CloudWAN.

CloudWAN is designed to enable the rapid responsiveness and efficiency required by enterprise customers as they expand operations worldwide, including their IT infrastructure. CloudWAN helps organisations to efficiently scale and evolve to address business changes across the technology stack, encompassing SD-WAN and NFV technology into a common environment designed to provide enhanced visibility and control across the entire network.

By combining NTT i3's CloudWAN SD-WAN controller and ecosystem with Intel's next-generation server chips on the new Purley platform, CloudWAN is intended to provide businesses with an efficient path to the flexible deployment and management of software at the edge of their network. With CloudWAN, Intel provides the silicon for the high performance boxes required for software defined networks.

CloudWAN's single console unifies the management of network infrastructure, function and applications, enabling IT departments to proactively plan for changing network requirements while also managing the existing infrastructure. In addition, enterprise cloud operators offering a range of enterprise applications from multiple vendors or cloud-native workloads are able to consolidate application silos into a common data infrastructure.

CloudWAN delivers capabilities including:

1. A unified virtual network for linking public and private clouds and bare metal infrastructure.

2. Management of infrastructure, network functions and applications from a single cloud-based console.

3. Extensible network functions enabled via software that interoperates with the core virtual network.

4. Integration of business applications and services from the cloud to the edge of the network.

5. A micro-service architecture for connected devices.

6.An ecosystem of network function providers that allow CloudWAN to be implemented in existing enterprise IT environments.

CloudWAN is also designed to enable cost-efficiency via reduced set-up and service costs and lower bandwidth expenses through the use of alternate transport networks, as well as simplified device management with network functions delivered as-a-service on a single appliance and simplified network monitoring, debugging and troubleshooting processes.

Israel's Neptune Consortium Demos vCPE

Neptune, the Israeli consortium for network programming, announced that it has performed a general demonstration of its technologies as part of its mission to build on the software defined networking (SDN) and network functions virtualisation (NFV) technologies that are currently under development.

Neptune is seeking to significantly reduce the time required to deploy new services and new service types, enable more efficient use of network and computational resources, and facilitate faster and more intelligent response to network events.

The latest demonstration by Neptune included four industry firsts, as follows:

1. A multi-vendor vCPE demonstration, in which a single service provider OpenStack controller established end-to-end services terminating on virtual CPE (vCPE) from three vendors, ADVA, Telco Systems and RAD, all running on top of a Mellanox switch and HCA adaptor.

2. Satellite network vendor Gilat demonstrated vCPE capabilities in a satellite ground segment gateway, including integration of tactical mobile ad-hoc network (MANET) UHF radio networks into an SDN and NFV-based multi-vendor heterogeneous virtual RAN (vRAN) based on technology developed by Elbit Systems Land and C4i.

3. The above demonstration also featured Open Mobile Edge Cloud (OMEC) with the first fully virtual cellular base station (from modem to management) developed by ASOCS and accelerated by a pool of network attached programmable hardware accelerators.

4.Transport of the common public radio interface (CPRI) standard over microwave by Ceragon Networks.

In addition, ECI Telecom demonstrated how its multi-layer service app is able to perform fast recovery from optical-layer faults employing an ONOS controller combined with OpenFlow optical extensions, and ADVA presented MEC for the delivery of enterprise services.

The demonstration was conducted at a Bezeq International facility, supported by equipment located at four other sites, and attended by outgoing chief scientist of the Israel Ministry of Economy and Industry, Avi Hasson, the head of the chief scientist's technological infrastructure division, Ilan Peled, Neptune chair Dr. Yaakov Stein, and representatives of the consortium members.

Neptune was founded in 2014 to develop methods to automate and programmatically manage service provider networks, irrespective of underlying network technologies leveraging SDN and NFV. Backed by the Israel Innovations Authority (formerly the Office of the Chief Scientist of the Ministry of Economy and Industry), consortium members include: ADVA (Israel), ASOCS, Bezeq International, Ceragon Networks, ECI Telecom, Elbit Systems, Gilat Satellite Networks, Mellanox Technologies, RAD and Telco Systems (BATM Group).

The consortium also includes research institutions Ariel University, Ben-Gurion University, the Hebrew University of Jerusalem, the Holon Technological Institute, the Interdisciplinary Center (IDC) Herzliya, the Lev Academic Center in Jerusalem, the Technion - Israel Institute of Technology and Tel Aviv University.

NTT Carriers One Petabit per Second over Single Fiber over 200 km

NTT has demonstrated a record inline optical amplified transmission of 1 petabit (1000 terabit) per second over a 205.6 km single strand of 32-core (light paths) optical fiber.

The experimental system used 32-core fiber with a new arrangement of cores to reduce inter-core light leakage, a fan-in/fan-out (FI/FO) device to couple light into the multi-core fiber, along with new digital coherent optical transmission technology. The result aws 31.3 Tbit/s capacity per core (680 Gbit/s per wavelength x 46 wavelength channels).  Multiplied by 32 cores, adn the total transmission capacity exceeded the petabit milestone.

The test was conducted in collaboration with the Technical University of Denmark, Fujikura Ltd., Hokkaido University, the University of Southampton and Coriant.

The transmission occurred within a single optical amplifier bandwidth (C-band), which is half the bandwidth used in a previous experiment the used C-band + L-band. NTT said its research indicates that it is potentially possible to carry 1 petabit per second over 1000 km, which is approximately the distance between major cities both in Japan and in Europe.

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