Wednesday, July 31, 2019

Xilinx completes Solarflare acquisition -- SmartNICs

Xilinx completed its acquisition of Solarflare, a provider of high-performance, low latency networking solutions for customers spanning FinTech to cloud computing. Financial terms were not disclosed. The deal was first announced in April.

Earlier this year, the two companies demonstrated a single-chip FPGA-based 100Gb SmartNIC, processing 100 million packets per-second receive and transmit, all at less than 75 watts.

Xilinx to acquire Solarflare for SmartNIC solutions

Xilinx agreed to acquire Solarflare Communications, a provider of high-performance, low latency networking solutions for customers spanning FinTech to cloud computing. Financial terms were not disclosed.

Xilinx said the acquisition enables it to combine its FPGA, MPSoC and ACAP solutions with Solarflare's ultra-low latency network interface card (NIC) technology and Onload application acceleration software. The target is new converged SmartNIC solutions, accelerating Xilinx's "data center first" strategy.


Xilinx and Solarflare have been collaborating on advanced networking technology for the last two years, with Xilinx becoming a strategic investor in 2017. The two companies recently demonstrated their first joint solution – a single-chip FPGA-based 100G SmartNIC, processing 100 million packets per-second receive and transmit, all at less than 75 watts.

Submer opens North America HQ in Asburn

Submer Technologies, a company based in Barcelona that specializes in immersion cooling systems - has chosen Ashburn, Virginia for its new North American headquarters.

Submer's immersion cooling submerges servers in a proprietary dielectric fluid that has 1000-times the cooling capacity of air – delivering higher performance in less space at less than half the power consumption of a traditional, air-cooled environment.

“We need to be where our customers are,” said Daniel Pope, CEO of Submer Technologies. “When it came time to locate our North American division, Ashburn quickly rose to the top of the list. The amount of critical infrastructure and the diversity of operators make it the perfect location for Submer.”

https://www.submer.com/about

Tuesday, July 30, 2019

Huawei reports 23% growth despite U.S. pressure

Huawei reported unaudited revenue of CNY401.3 billion for the first half of 2019, a 23.2% increase over the same period last year, along with a net profit margin of 8.7%.

Huawei's carrier business reached CNY146.5 billion in revenue for the first half of 2019. The company cited steady growth in production and shipment of equipment for wireless networks, optical transmission, data communications, IT, and related product domains. To date, Huawei has secured 50 commercial 5G contracts and has shipped more than 150,000 base stations to markets around the world.

In Huawei's enterprise business, H1 sales revenue was CNY31.6 billion. Huawei continues to enhance its ICT portfolio across multiple domains, including cloud, artificial intelligence, campus networks, data centers, Internet of Things, and intelligent computing. It remains a trusted supplier for government and utility customers, as well as customers in commercial sectors like finance, transportation, energy, and automobile.

In Huawei's consumer business, H1 sales revenue hit CNY220.8 billion. Huawei's smartphone shipments (including Honor phones) reached 118 million units, up 24% YoY. The company also saw rapid growth in its shipments of tablets, PCs, and wearables. Huawei is beginning to scale its device ecosystem to deliver a more seamless intelligent experience across all major user scenarios. To date, the Huawei Mobile Services ecosystem has more than 800,000 registered developers, and 500 million users worldwide.

"Revenue grew fast up through May," said Liang. "Given the foundation we laid in the first half of the year, we continue to see growth even after we were added to the entity list. That's not to say we don't have difficulties ahead. We do, and they may affect the pace of our growth in the short term. But we will stay the course. We are fully confident in what the future holds, and we will continue investing as planned – including a total of CNY120 billion in R&D this year. We'll get through these challenges, and we're confident that Huawei will enter a new stage of growth after the worst of this is behind us."

https://www.huawei.com/en/press-events/news/2019/7/Huawei-Announces-H1-2019-Revenue


  • In March 2019, Huawei, which is a private company wholly owned by its employees, reported 2018 revenue of CNY721,202 million, representing an increase of 19.5% year-on-year. Net profit grew by 25.1% year-on-year to CNY59,345 million. 

CoreSite offers SDN-powered connectivity between data centers

CoreSite Realty is now offering SDN-powered inter-site connectivity between seven of its edge markets.

The CoreSite Inter-Site Connectivity solution enables customers to be secure their distributed IT infrastructure with private connections, versus accessing data over the Internet. The connectivity improves performance and reduces network provisioning times. CoreSite also provides access to more than 775 network, cloud and IT service providers.

“We are pleased to offer SDN connectivity between our markets by leveraging the CoreSite Open Cloud Exchange through the reach of its capabilities and ease of its online portal,” said Maile Kaiser, CoreSite’s SVP of Sales. “With the CoreSite Inter-Site Connectivity solution, we make it easier for customers to expand and connect to CoreSite’s rich ecosystem of cloud and network providers as well as other enterprise organizations.”

http://www.coresite.com

Masergy service bundles combine SD-WAN + security

Masergy introduced bundles that combine its Managed SD-WAN solutions with advanced security services.

Masergy's three new SD-WAN bundles include options for:

  • Unified Threat Management (UTM): This built-in capability integrates a range of security features including web filtering, antivirus, data loss prevention, and intrusion detection and prevention into a single platform.
  • Threat Monitoring and Response: Advanced protection includes 24/7 threat monitoring and real-time incident response for the entire SD-WAN deployment by certified security experts in global Security Operation Centers (SOCs).
  • Managed Security Services: Comprehensive managed detection and response services for cloud, on-premises and hybrid environments, including an advanced security tool suite with machine-learning behavioural analytics, embedded threat intelligence, and 24/7 security monitoring and incident response.

“As leading enterprises are embracing the strategic advantages of a robust SD-WAN solution, they are also realizing the critical importance of securing their networks,” said Terry Traina, Chief Digital Officer at Masergy. “Our new SD-WAN bundles are currently the only solution on the market for companies that want the performance of SD-WAN coupled with the peace of mind that comes with 24/7 security monitoring and response.”


https://www.masergy.com/managed-sd-wan


GTT enhances its SD-WAN service

GTT Communications has enhanced its SD-WAN service by adding the capability to run multiple network applications on a single universal customer premises equipment (uCPE) device.

Virtualized network functions (VNFs) include SD-WAN, firewall and WAN optimization.

“GTT is advancing its portfolio of cloud networking services with new functionality. We will continue to expand our SD-WAN offer with additional features on uCPE to connect our enterprise clients to any location in the world and every application in the cloud,” stated Rick Calder, GTT president and CEO.

http://www.gtt.net

Corning Q2 optical sales reach $1.07 billion, up 7% yoy

Corning reported cores Q2 2019 sales of $3 billion, up 8% from the same period last year.

Optical Communications second-quarter sales were $1.09 billion, up 7% year over year. Net income for the second quarter was up 5% year over year. Sales growth was led by hyperscale data center and optical fiber demand as well as sales from the 3M Communication Markets Division acquisition.

For full-year 2019, Optical Communications year-over-year sales growth is now expected to be up by a low- to mid-single digit percentage. The lower growth expectations are driven primarily by weakness in the carrier market. Optical Communications growth remains significantly above passive optical market growth.

https://investor.corning.com/investor-relations/default.aspx


Welcome Italia selects ADVA FSP 3000 fiber monitoring

Welcome Italia has selected ADVA's FSP 3000 and ALM fiber monitoring solution to enable assured high-capacity enterprise services throughout Italy.

The new network, which connects Welcome Italia’s two main data centers, features ADVA’s colorless, directionless and flexgrid multi-degree ROADMs, enabling automatic traffic rerouting for enhanced availability. The solution has also been primed for the comprehensive, low-latency security of ADVA’s ConnectGuard™ Optical encryption technology. ADVA’s partner Sirti is installing the network and will also provide ongoing maintenance and support.

Welcome Italia’s new backbone network serves enterprise clients throughout Italy with points of presence spread across the country. Built on the ADVA FSP 3000, it simplifies network operations and helps to reduce capital and operational expenditure. With its modular architecture, the FSP 3000 gives Welcome Italia the freedom to expand its network as soon as it’s required. The solution is also monitored by the ADVA ALM, which gives real-time insight into the integrity and performance of Welcome Italia’s fiber infrastructure, significantly improving robustness and efficiency. What’s more, the complete network is managed by Ensemble Controller, which combines efficiency in manual operations with programmatic control. This advanced management and domain control solution supports users while also enabling intelligent algorithms to gather data and take autonomous action.

Ciena's Packet Optical selected for UK’s Janet

Jisc, which is the UK’s expert member organization for digital technology and digital resources in higher education, further education, skills and research, is deploying Ciena’s Packet Networking platforms to enhance its Janet Network and provide high-speed connectivity across the UK.

Specifically, Jisc recently selected Ciena’s 8700 and 5170 Packet Networking platforms to address growing needs for high-bandwidth services delivering up to 100GbE.

“Scientific research and education hinges on high-speed, reliable connectivity,” said Rod Wilson, Chief Technologist for Research Networks at Ciena. “Rapid growth in data intensive research such as high-energy physics and genome engineering means that researchers need agile networks to support a range of services from massive flows for computational science to distributed services for individual researchers and educators.”

A10's Q2 sales dip to $49m, company considers alternatives, CEO to step down

A10 Networks reported Q2 revenue of $49.2 million, compared with $60.7 million in second-quarter 2018. There was a GAAP net loss of $5.8 million, or $0.08 per basic and diluted share.

“Second quarter revenue came in below our guidance as a number of large deals in our pipeline pushed into future quarters or were downsized. These deals were primarily in North America and within the service provider and web giant verticals where opportunities can be large but the timing is difficult to predict,” said Lee Chen, president and chief executive officer of A10 Networks. “Outside of North America, all of our major geographies met or exceeded our Q2 expectations, and we continued to make progress on our strategic initiatives in security, 5G and multi-cloud.”

A10 also confirmed that it has retained Bank of America Merrill Lynch to advise about a potential sale or change of control transaction. The company has appointed Eric Singer, Founder and Managing Member of VIEX Capital Advisors, to its Board and formed a Strategic Committee to consider strategic options.

In addition, Lee Chen, president and chief executive officer of A10 Networks, announced his intention to step down once a new CEO has been selected.

Confluera raises $9m for cybersecurity

Confluera, a start-up based in Palo Alto, California, announced $9 million in Series A funding for its cybersecurity solutions.

Confluera aims to turn security analysts into cyber defenders by enabling them to stop breaches in real time. Confluera is Co-Founded by Abhijit Ghosh, Niloy Mukherjee, and Bipul Sinha. Ghosh has a background in networking, sec

The funding round was led by Lightspeed’s Founder & Managing Partner Ravi Mhatre with significant participation by John W. Thompson, former CEO of Symantec and Chairman of Microsoft; Frank Slootman, former CEO of ServiceNow; and Lane Bess, former CEO of Palo Alto Networks.

Confluera's founding team includes:

  • Abhijit Ghosh, Co-founder and CEO – Engineering Leader Juniper Networks, Azanda Networks, and Siemens;
  • Niloy Mukherjee, Co-founder and Chief Architect – Lead Architect Oracle In-Memory Database and LinkedIn Distributed Data Systems;
  • Bipul Sinha, Co-founder and Chairman – Co-Founder & CEO Rubrik, Founding investor/Board Member Nutanix, and engineering at Oracle.


https://www.confluera.com/


Monday, July 29, 2019

Sparkle unveils Genome for automation, programmability, virtualization

Sparkle announced the availability of Genome, its new integrated set of platforms and tools for Network Automation, Programmability and Virtualization -- a major step toward its vision of the autonomous network of the future. Last month, Sparkle announced "Nibble," a new ultra-long-haul photonic backbone connecting Sicily with major points of presence and data centers in Europe. I

Genome.NFV will progressively evolve Sparkle’s traditional Physical Network Functions (PNF) into dynamic, cloud-native, highly resilient Virtual Network Functions (VNF). It is initially deployed at Sparkle’s core data centers in Catania (Italy) and Athens (Greece), as well as in Miami (Florida, USA), Secaucus (New Jersey, USA), with Milan (Italy) to follow later this year

The initial set of VNFs will be available to all new customers of Sparkle’s Global Signalling and LTE Diameter Signalling for international roaming services.

Existing customers will be progressively migrated to the new virtualized platforms, benefitting from increased resiliency and reduced latency, thanks to proximity interconnections. The progressive cloudification of Voice & Mobile Network Functions will continue throughout 2020 with the introduction of virtual IP Multimedia Subsystem (IMS) and virtual Session Border Controllers (SBC).

Genome.SDN is a modular, vendor agnostic, scalable and feature-rich network automation solution for physical and virtual networks. Featuring an Automation Workflow Manager, it will assist network engineers to automate complex Method of Procedure (MOP) and Operations repetitive tasks, creating, visualizing, and executing automation workflows across the whole Seabone IP/MPLS backbone through a single interface. The solution is complemented by a Planning Tool allowing abstraction and modelling of the IP/MPLS network, supporting engineers to simulate availability and failover scenarios, automating traffic balancing and link optimization and building comprehensive forecast needs based on traffic trends, regional growth and other inputs. Genome.SDN will progressively extend to all Sparkle network domains, starting with the integration of Nibble Optical Transport Network, currently planned in early 2020.

“The relentless process of Hyper Automation of Industries requires service providers to deliver global network services at lightspeed satisfying extreme reliability requirements.” said Daniele Mancuso, Sparkle’s VP ICT Engineering. “The introduction of Genome sets the path towards the Autonomous Network of the future, confirming Sparkle leadership in technological innovation.”

https://www.tisparkle.com/PR_Genome

Sparkle to build new ULH photonic backbone with Infinera

Sparkle, the first international service provider in Italy and among the top 10 global operators, announced plans for a new ultra-long-haul photonic backbone connecting Sicily with major points of presence and data centers in Europe.

Infinera confirmed that its XT-3600 platform will power Sparkle's new "Nibble" network.

Nibble is expected to provide market-leading speeds and low-latency, high-performance, scalable, and guaranteed connectivity services between top European locations. Infinera's XT-3600 enables Sparkle to deliver 100 Gigabit Ethernet cloud-scale services in a compact form factor while automating service activation through Instant Bandwidth.



Sparkle said its new backbone will implement a "Software-defined Bandwidth" model using capacity License to disaggregate the underlying hardware installation from the capacity activation.

Nibble's ultra-performant photonic layer will progressively be integrated with its existing Mediterranean and Balkans networks and with BlueMed, the new multifiber submarine cable linking Palermo and Milan via Genoa, creating a seamless Pan Mediterranean Optical Transport Network.

The first link - planned to go live in summer 2019 - will connect Sparkle’s Sicily Hub in Palermo with Milan Caldera open datacenter; Nibble construction is planned to continue in several phases until the end of 2020 to fully deploy the entire Italian and European footprint and to integrate with the Mediterranean and Balkans networks.

“Sparkle confirms its strong leadership in the European telecom market with a solution that ensures top quality and efficiency standards,” said Mario Di Mauro, Sparkle’s Chief Executive Officer. “The Gigabit Society is demanding faster and more sophisticated capacity services and with the Infinera Instant Network solution we can expand our geographical footprint and satisfy customers’ needs at light speed, investing only in the capacity we need to deploy, where and when we need it.” 

US Department of Justice awards $984M migration contract to AT&T

The U.S. Department of Justice (DOJ) awarded a 15-year contract value at $984 million to AT&T to help improve its mission performance with modernized technology.

The work – awarded via Task Order through the General Services Administration’s (GSA) Enterprise Infrastructure Solutions (EIS) technology procurement program – will provide for DOJ's transition to a next-generation communications platform supporting more than 120,000 employees across more than 2,100 locations. The fully managed solution includes a breadth of networking capabilities, including IP voice, data, security, cloud access and professional services. This will serve as a catalyst for the DOJ’s long-term technology priorities.

“The DOJ and its component organizations do the hard work of protecting the freedoms, rights and safety of all Americans,” said Stacy Schwartz, vice president, AT&T – Public Safety and FirstNet. “We are honored to provide a modern communications platform and capabilities to support the DOJ’s work for the next 15 years.”

EIS is a federal technology procurement that allows government agencies to cost-effectively modernize and expand mission support. The AT&T solution will provide DOJ the flexibility and protections to meet their requirements as they aim to strike the right balance between needs to access cloud services from multiple providers and ensuring the access is highly secure. The new solution will help simplify cloud adoption across 43 component organizations and support the Department’s Joint Cloud Optimized Trusted Internet Connection Service (JCOTS), which will accelerate the path for DOJ to access multiple cloud environments with improved security, reliability and speed.

Additionally, the DOJ solution includes access to the AT&T mobility network and FirstNet, the nationwide, dedicated communications platform purpose-built for public safety.

Vodafone's quarterly revenue dips, Liberty Global merger ready to close

Vodafone reported group revenue of €10.7 billion, down by €0.2 billion due to foreign exchange rate effects, as Q1 organic service revenue declined 0.2%, improving compared to Q4 (-0.7%).

Vodafone said customer growth slowed compared to previous quarters, primarily reflecting increased competitor promotions in Spain and Germany, as well as slower broadband market growth in Italy. However, Voda Consumer mobile commercial performance in Spain stabilised in June.

Vodafone's acquisition of Liberty Global is expected to close in the coming days.

Nick Read, Group Chief Executive, commented: “Our service revenue growth improved during the first quarter, led by Italy, and mobile churn fell to another record low. Following a significant quarter of commercial activity, we expect the gradual recovery in our service revenues to continue, underpinning our financial outlook for the year. With the completion of the Liberty Global acquisitions, Vodafone will become Europe’sleading converged operator, with growing fixed and converged services contributing around half of our European service revenues. We have developed a detailed plan to deliver the customer benefits and capture the substantial synergiesfrom the deal, which we will start to execute immediately

https://www.vodafone.com

Some highlights

  • Vodafone is actively implementing simplified pricing plans with speed-tiered unlimited data launched in 5 markets. 
  • The company said it is on track to meet the Group’s €400 million FY20 net operating expenses reduction target in Europe.
  • In mobile, the company reported a 0.5 percentage point year-on-year reduction in Europe contract churn during Q1, reaching a new record low level of 14.6%. 
  • Data usage growth remained strong at 49%, with average smartphone usage increasing to 3.9 GB per month in Europe.
  • Vodafone has now launched 5G in five European markets, with services available in Spain, Italy and Romania since June, and the UK and Germany since July. 
  • 5G roaming is now live for Vodafone 5G customers roaming on Vodafone networks in Germany, Italy, the UK and Spain. 
  • Vodafone's 5G network will be live across more than 50 cities and available in nine European markets by the end of the current financial year.
  • Including VodafoneZiggo, Vodafone had 18.8 million fixed broadband customers, 14.6 million NGN customers, 6.7 million converged customers and 13.6 million TV customers in Europe at the end of the period. 
  • Excluding VodafoneZiggo, Vodafone added 54,000 broadband customers, 237,000 NGN customers and 115,000 converged customers during the quarter. 


FCC certifies CBRS Environmental Sensing Capability

The FCC's Wireless Telecommunications Bureau (WTB) and the Office of Engineering and Technology certified CommScope, Federated Wireless, and Google to operate their Environmental Sensing Capability (ESC) sensors consistent with the information they provided, including sensor locations, configuration, and DPA coverage.

DPAs are pre-defined protection areas that extend beyond the coastline or that enclose a protected terrestrial radar facility, which may be activated or deactivated as necessary to protect DoD radar systems.

The ESCs will be used to detect the presence of federal incumbent radar transmissions in the 3.5 GHz band and communicate that information to one or more certified Spectrum Access Systems (SASs).

In April, the companies earned FCC approval for their sensor hardware.

WInnForum, which supports the development and advancement of spectrum sharing technologies based on the three-tier architecture detailed in 3.5 GHz CBRS band rules defined by the FCC, congratulated member organizations CommScope, Federated Wireless, and Google for final FCC certification of their Environmental Sensing Capability systems in the 3.5 GHz band.

https://docs.fcc.gov/public/attachments/DA-19-718A1.pdf

Microsoft to acquire BlueTalon for cloud data governance

Microsoft has acquired BlueTalon, a start-up based in Redwood City, California, for its cloud data governance technology. Financial terms were not disclosed.

BlueTalon, which is now part of Microsoft’s Azure Data Governance group, has architected its data control solution to provide a unified approach to policy management that brings the right level of control and consistency across the enterprise, including Hadoop, RDBMS and big data environments. The company was founded by Pratik Verma.

https://blogs.microsoft.com/blog/2019/07/29/microsoft-acquires-bluetalon-simplifying-data-privacy-and-governance-across-modern-data-estates

CommScope debuts 10G remote PHY for distributed access architecture

CommScope introduced its RD1322 2x2 Remote PHY Device (RPD) for cable operators deploying Distributed Access Architecture (DAA).

The RD1322 is the newest addition to CommScope's portfolio of Outside Plant (OSP) DAA solutions that enable operators to build upon their installed base of nodes to advance their plans for Extended Spectrum DOCSIS (ESD), Full Duplex DOCSIS (FDX), DAA, Remote PON, Wireless Backhaul, DOCSIS 3.1, and more. This is especially valuable in the labor-intensive OSP domain.

“As global operators continue to invest in tomorrow’s 10G networks, the outside plant will represent a primary budget focus,” said Kevin Keefe, senior vice president and segment leader, Network & Cloud, CommScope. “Our RD1322 2x2 RPD is the answer for operators looking to maximize their existing infrastructure to deliver tomorrow’s networks and services as quickly as possible. We have an unmatched portfolio and breadth of experience in helping global operators deliver next-generation networks reliably and at scale. As they evolve their networks, we’ll continue to deliver the innovation to facilitate their progress.”

CommScope’s DAA portfolio includes its RPD, Remote PON, R-PHY Shelf, Video Unified Edge (VUE), ICX Switch family, and hybrid E6000 I-CCAP/CCAP Core products. It also features a full suite of virtualized products, including the E6000 Virtual Core (vCore) and vManager framework of tools, including industry-leading monitoring, management, and traffic engineering functions.

Sunday, July 28, 2019

Vodafone to create Europe's largest TowerCo

Vodafone Group Plc will spin off most of its European tower infrastructure into a new, fully independent "TowerCo" company.

TowerCo, which will be operational by May 2020, will comprise 61,700 towers in 10 markets with potential proportionate EBITDA of around  EUR 900 million.

Vodafone has recently announced active and passive network sharing agreements in Italy, Spain and the UK.

Vodafone said it believes that there is significant scope to generate operational efficiencies and increase tenancy ratios across the portfolio by creating an independent company. Based on market benchmarks for anchor tenant lease rates, existing third party revenues and the attributable cost base, TowerCo could generate proportionate annual revenue and EBITDA of around €1,700 million and €900 million, respectively. TowerCo’s attributable annual maintenance and expansion capex could be up to €200 million.

A future IPO for the new organization is a possibility.

Nick Read, CEO of Vodafone, said “Building on our position as Europe’s largest converged operator, we are now creating Europe’s largest tower company. Given the scale and quality of our infrastructure, we believe there is a substantial opportunity to unlock value for shareholders while capturing the significant industrial benefits of network sharing for the digital society. We are focussed on executing this strategic priority over the next 18 months."

Separately, Vodafone and Telecom Italia Group (TIM) agreed to an active network sharing partnership for 4G and 5G and the expansion of their existing passive sharing agreement. Specifically, Vodafone will merge its passive tower infrastructure in Italy ("Vodafone Italy Towers”) into INWIT SpA. As part of the combination, Vodafone will receive a cash consideration of EUR 2,140 million and a 37.5% shareholding in the combined entity, which will remain listed on the Milan Stock Exchange. Based on the 30-day VWAP of the INWIT share price prior to this announcement, Vodafone's shareholding would be valued at EUR 3,130 million, which implies an enterprise value for Vodafone Italy Towers of EUR 5,270 million.

Orange and Vodafone extend network sharing in Spain for 5G

Vodafone and Orange agreed to extend their current active mobile network sharing arrangement in Spain to include 5G. The original network sharing agreement signed in 2006 covered passive infrastructure nationwide and active infrastructure in smaller towns. The agreement was subsequently renewed in 2012 and in 2016.

Under the new agreement, Vodafone will be able to offer its customers broadband access and other fixed services on Orange’s fibre-to-the-home (FTTH) network. Both companies have also agreed to explore potential co-investment opportunities to expand their fibre footprint in the future. The partnership is also expanded to include 5G. The terms of the new agreement allow active network sharing (including both the radio access network and high-speed backhaul) in cities with populations of up to 175,000 people, whereas the previous arrangement only enabled sharing in towns of between 1,000 and 25,000 people. Two thirds of the Spanish population will now be covered by Vodafone and Orange’s shared network agreement, with 14,800 sites expected to be shared vs. 5,600 shared today. The new agreement is expected to deliver cumulative opex and capex savings to Vodafone of at least €600 million over the next ten years.

Vodafone and Orange will continue to operate independent infrastructure in the biggest cities.

See also