Showing posts with label Facebook. Show all posts
Showing posts with label Facebook. Show all posts

Wednesday, October 9, 2019

Murata builds 60 GHz RF Module for Facebook's Terragraph

Japan-based Murata Manufacturing Co. is developing an RF module solution for Terragraph, a gigabit wireless technology envisioned by Facebook for urban and suburban environments.

Terragraph is enabled in part by placing millimeter-wave RF modules at 200 to 250 meter intervals between base stations.

Murata said its millimeter-wave RF modules use an independently developed Low Temperature Co-fired Ceramic that realizes stable communications quality in the millimeter-wave band and features both high heat and moisture resistance. This help ensures a high-quality network environment for Terragraph.

Norio Nakajima, Senior Executive Vice President, Module Business Unit, and Representative Director stated: “As the popularity of 5G approaches, the information society will become more familiar than ever and will be accessible to everyone. Murata Manufacturing has advantages in communications and hardware, and we are very pleased to be able to support Facebook’s Terragraph project to expand access to high-quality connectivity.”

Facebook's Terragraph Accelerates WiGig for City Access

Facebook took the wraps off of two terrestrial connectivity technologies for fast wireless access.

Terragraph is a 60 GHz, multi-node wireless system for dense urban areas and that uses radios based on the WiGig standard. Facebook said Terragraph will deliver gigabits of data capacity. IPv6-only Terragraph nodes will be placed at 200m intervals. Terragraph will incorporate commercial off-the-shelf components and aim for high-volume, low-cost production. Facebook noted that up to 7 GHz of bandwidth is available in the unlicensed 60 GHz band in many countries.  U.S. regulators are considering expanding this to a total of 14 GHz.

Facebook Terragraph will also leverage an SDN-like cloud compute controller and a new modular routing protocol that Facebook optimized for fast route convergence and failure detection. The architecture also tweaks the MAC layer to solve shortcomings of TCP/IP over a wireless link. The company says the TDMA-TDD MAC layers delivers up to 6x improvement in network efficiency while being more predictable than the existing Wi-Fi/WiGig standard.

Terragraph is already in operation at the Facebook campus in Menlo Park, California, where it delivers 1.05 Gbps bidirectional (2.1 Gbps total throughput per distribution node) in P2P mode, up to 250 meters away. A wider trial is planned for San Jose, California.

Friday, March 15, 2019

OCP 2019: Edgecore debuts "Minipack" Switch for 100G and 400G

At OCP Summit 2019, Edgecore Networks introduced an open modular switch for 100G and 400G networking that conforms to the Minipack Fabric Switch design contributed by Facebook to the Open Compute Project (OCP).

Minipack is a disaggregated whitebox system providing a flexible mix of 100GbE and 400GbE ports up to a system capacity of 12.8Tbps.

The Minipack switch can support a mix of 100G and 400G Ethernet interfaces up to a maximum of 128x100G or 32x400G ports. Minipack is based on Broadcom StrataXGS Tomahawk 3 Switch Series silicon capable of line rate 12.8Tbps Layer2 and Layer3 switching.

The Minipack front panel has eight slots for port interface modules (PIM). The first PIM options available for the Edgecore Minipack switch are the PIM-16Q with 16x100G QSFP28 ports, and the PIM-4DD with 4x400G QSFP-DD ports. The Minipack modular switch is a 4U form factor, power optimized for data center deployments, and includes hot-swappable redundant power supplies and fans for high availability.

Edgecore said its Minipack AS8000 Switch enables network operators to select disaggregated NOS and SDN software options from commercial partners and open source communities to address different use cases and operational requirements. Edgecore has ported and validated Software for Open Networking in the Cloud (SONiC), the OCP open source software platform, on the Minipack AS8000 Switch as an open source option for high capacity data center fabrics. In addition, Cumulus Networks announced the availability of its Cumulus Linux operating system for the Edgecore Minipack switch.

“Network operators are demanding open network solutions to increase their network capacities with 400G and higher density 100G switches based on open technology. The Edgecore Minipack switch broadens our full set of OCP Accepted open network switches, and enables data center operators to deploy higher capacity fabrics with flexible combinations of 100G and 400G interfaces and pay-as-you-grow expansion,” said George Tchaparian, CEO, Edgecore Networks. “The open and modular design of Minipack will enable Edgecore and partners to address more data center and service provider use cases in the future by developing innovative enhancements such as additional interface modules supporting encryption, multiple 400G port types, coherent optical ports and integrated optics, plus additional Minipack Switch family members utilizing deep-buffer or highly programmable or next-generation switching silicon in the same flexible modular form factor.”

“Facebook designed Minipack as a fabric switch with innovative performance, power optimization and modularity to enable our deployment of the next generation data center fabrics,” said Hans-Juergen Schmidtke, Director of Engineering, Facebook. “We have contributed the Minipack design to OCP in order to stimulate additional design innovation and to facilitate availability of the platform to network operators. We welcome Edgecore’s introduction of Minipack as a commercial whitebox product.”

The Minipack AS8000 Switch with PIM-16Q 100G QSFP28 interface modules will be available from Edgecore resellers and integrators worldwide in Q2. PIM-4DD 400G QSFP-DD interface modules will be available in Q3. SONiC open source software, including platform drivers for the Edgecore Minipack AS8000 Switch, are available from the SONiC GitHub.

Thursday, March 14, 2019

OCP 2019: Facebook rethinks data center fabric

At this week's OCP Summit in San Jose, Facebook released details on how they're rethinking the fabric of their data centers. FBOSS is still used to bind together its data center, but there are significant changes to ensure that a single code image and the same overall systems can support multiple generations of data center topologies and an increasing number of hardware platforms.

Facebook's next-generation "F16" data center fabric design offers 4x the capacity of its predecessor while promising to be more scalable and simpler to operate and evolve. The fabric leverages commercially available 100G CWDM4-OCP, which yields desired 4x capacity increase as 400G link speeds, but with 100G optics.

The refreshed fabric includes Minipack, a new modular block switch Facebook developed with Arista Networks. The Minipack switch easily integrates into various data center topologies while also consuming half the power of its predecessors. Facebook calculates that Minipack will consume 50 percent less power and space than its predecessor. Its modularity enables it to serve multiple roles in the new topologies.

In addition to Minipack, Facebook also jointly developed Arista Networks’ 7368X4 switch.

Both Minipack and the Arista 7368X4 are being contributed to OCP, and both run FBOSS.

Facebook has also developed HGRID as the evolution of Fabric Aggregator to handle the doubling of buildings per region.

https://code.fb.com/data-center-engineering/f16-minipack/


OCP 2019: Arista's 12.8Tbps switch developed with Facebook

At OCP 2019, Arista Networks announced a high-radix 12.8Tbps switching system developed with Facebook with the goal of simplifying 100/400G networking.

The Arista 7360X Series doubles system density while reducing power consumption and cost by doubling the network diameter and reducing the number of required leaf-spine tiers. Full manageability via FBOSS (Facebook Open Switching Software) is supported for controlling power and thermal efficiency along with the control plane.

The new platform is a compact, four rack unit design and all active components are removable. It delivers a 60% reduction in power at under 10 watts per 100G port. Standards-based, the system comes with support for 100G QSFP and 400G OSFP or QSFP-DD optics and cables. Arista EOS delivers the advanced traffic management, automation and telemetry features needed to build and maintain modern cloud networks.
The Arista 7368X4 Series is available as an 8-slot modular system with a choice of 100G and 400G modules based on industry-standard interfaces and support for EOS.

It is currently shipping with 100G interfaces. Price per 100G port is under $600.

“The Arista solution has helped Facebook to gain significant improvements in power and space efficiency, reducing the number of switch chips in the network stack and allowing power to be freed up for compute resources,” said Najam Ahmad, Vice President Network Engineering for Facebook. “Having both an internally developed Minipack and the Arista solution allows Facebook to remain multi-sourced, with an option to run Arista EOS or FBOSS on both, where either system can be deployed in multiple tiers of networks.”

OCP 2019: Facebook plans own fiber linking data centers in Ohio, VA, NC

As previously disclosed, Facebook built its own 200-mile underground fiber cable between its data centers in New Mexico and Texas. The cable is described as "one of the highest-capacity systems in the United States, with state-of-the-art optical fiber."

Facebook now plans new fiber builds between its data centers in Ohio, Virginia, and North Carolina.

This blog posting by Facebook's Kevin Salvadori discusses the company's fiber deployments.


Facebook presentation: Optics Inside the Data Center

Mark McKillop, Network Engineer at Facebook, and Katharine Schmidtke, Sourcing Manager of Network Hardware at Facebook, talk about challenges in Facebook's optical networks, both in backbone and in data centers.

The first part of the video covers the optical systems used to connect Facebook's POPs and data centers.

The second part discusses optical scaling challenges inside the data centers, including the potential for onboard optics in future systems.

This 30-minute video presentation was recorded at Facebook's Networking@Scale 2018 event in June in California.

See video:
https://www.facebook.com/atscaleevents/videos/2090069407932819/

Wednesday, March 13, 2019

Facebook suffers widespread outage

Facebook, Messenger, and Instagram suffered a widespread outage beginning around noon (ET) on Wednesday.

Users report difficulty in accessing the services in major U.S. metros, the UK, northern Europe, and Latin America.

Industry analysts described the disruption as perhaps the largest in Facebook's history in terms of the number of users affected and length of the outage.

The company acknowledged the outage and stated that it was not due to a DDoS attack. No other technical explanation has been offered by the company.







Tuesday, January 15, 2019

Facebook's new Singapore data center to use StatePoint Liquid Cooling

Construction is now underway on Facebook's first custom-built data center in Asia.  The new data center in Singapore shares some characteristics with other Facebook facilities, such as the use of 100% renewable energy, but features many unique aspects.

First, it will be an 11-story building that will sit on 12 acres of land in Singapore’s Tanjong Kling Data Center Park. Second, it will be the first to incorporate the new StatePoint Liquid Cooling (SPLC) system that Facebook developed with Nortek Air Solutions. The company estimates that SPLC technology can reduce peak water usage by more than 20 percent in Singapore’s hot and humid climate.

Facebook is aiming for an expected annual power usage effectiveness (PUE) of 1.19 with the Singapore data center.

https://code.fb.com/data-center-engineering/singapore-data-center/

Facebook pioneers StatePoint Liquid Cooling for data centers

Facebook is pioneering a StatePoint Liquid Cooling (SPLC) system, developed in partnership with Nortek Air Solutions, that promises to increase the power efficiency of its data centers.

The latest Facebook data centers in certain dry climates currently use a direct evaporative cooling system based on outdoor air rather than water.

Facebook estimates that the new SPLC technique can reduce water usage by more than 20 percent for data centers in hot and humid climates and by almost 90 percent in cooler climates.

The SPLC system is described as an advanced evaporative cooling technology, patented by Nortek, that uses a liquid-to-air energy exchanger, in which water is cooled as it evaporates through a membrane separation layer.

Further details are provided on Facebook's engineering blog.

https://code.facebook.com/posts/1221779261291831/statepoint-liquid-cooling-system-a-new-more-efficient-way-to-cool-a-data-center/

Monday, October 8, 2018

Facebook's Portal offers video calling. built-in Alexa

Facebook introduced two consumer video conferencing devices featuring smart camera and microphones as well as built-in Amazon Alexa capabilities. The service provides video conferenced between Facebook and Messenger contacts.

The smart cameras use AI to track the users as they move about within view.

Connectivity is provided via Wi‑Fi (802.11a/b/g/n/ac) with dual band MIMO (2.4GHz and 5GHz), and Bluetooth 4.2.

Facebook said it has striven to provide the highest level of security and that its Portal service does not have Facebook ads at this time, although third-party services using the platform may have embedded ads.

Sunday, September 30, 2018

Facebook open sources LogDevice data store

Facebook is committing to the open source community its LogDevice distributed data store for sequential data.

LogDevice was originally developed and currently deployed within Facebook for a variety of workloads, including event streaming, replication pipelines, transaction logs, and deferred work journals. LogDevice comes with a command-line administration tool called LDShell.

https://code.fb.com/core-data/open-sourcing-logdevice-a-distributed-data-store-for-sequential-data/

Thursday, September 27, 2018

Facebook plans big expansion of Virginia data center campus

Facebook announced a major expansion of its data center campus in Henrico County, Virginia.

Under the plan, Facebook will build two new data center buildings, for a total of five at this campus.

Facebook said the expansion builds on its original $1 billion investment in its initial 940,000 square foot campus, and that there are currently more than 800 construction workers on-site and, so far, over 925,000 hours have gone into building the project.

Facebook also noted that it is working with Dominion Energy to develop additional renewable energy resources that will support the campus.

MAREA redefines the transAtlantic subsea bandwidth equation

Construction of the highest-capacity subsea cable to cross the Atlantic is now complete.

The 6,600 km MAREA subsea cable, which was jointly funded by Microsoft and Facebook, links Virginia Beach, Virginia to Bilbao, Spain. The cable will be managed by Telxius, Telefónica’s new infrastructure company. The cable features eight fiber pairs and an initial estimated design capacity of 160 Tbps.

The cable takes a more southern route than other transatlantic cables, which mostly connect northern Europe to the New York/New Jersey region.

“Marea comes at a critical time,” says Brad Smith, president of Microsoft. “Submarine cables in the Atlantic already carry 55 percent more data than trans-Pacific routes and 40 percent more data than between the U.S. and Latin America. There is no question that the demand for data flows across the Atlantic will continue to increase and Marea will provide a critical connection for the United States, Spain, and beyond."


  • TE SubCom served as the system supply partner for MAREA.

Thursday, September 6, 2018

GlobeNet and Facebook build 2,500 Malbec subsea cable to Argentina

GlobeNet and Facebook kicked off construction of anew submarine cable system linking Brazil and Argentina.

GlobeNet and Facebook will co-own the system and it will be operated by GlobeNet.

The "Malbec" cable, which is named after the renowned Argentinian wine, will span 2,500 km linking Rio de Janeiro and Sao Paulo to Buenos Aires, with a branching unit to reach Porto Alegre, Brazil. The system will connect Argentina to GlobeNet's network in Brazil, which offers onward service to the United States. The Malbec cable system will feature six fiber pairs, delivering double the current international capacity to Argentina.
Globenet said Malbed will be the  first new submarine cable route to reach the Argentinian coast since 2001.

"We are excited and proud to work with Facebook," says Eduardo Falzoni, CEO of GlobeNet. "Argentina deserves state-of-the-art infrastructure to satisfy the pressing demands of the years ahead. This project is a testament to our capabilities, expertise and commitment to the region where we have been operating for 15 years."

The ready-for-service date will be in the first half of 2020.

http://www.globenet.com


Facebook to build data center in Singapore

Facebook announced plans to build a hyperscale data center in Singapore. The 170,000 square meter facility, which will be Facebook's first wholly-owned data center in Asia-Pac, is expected to come online in 2022 at the latest. Facebook estimated the cost of the project at US$ 1 billion.


Last month, Facebook set 2020 as its target to reduce greenhouse gas emissions by 75% and to power 100% of global operations with renewable energy. Three years ago, the company set a goal of powering 50% of its operations with renewable power by 2018. It reached this goal by the end of 2017. To date, Facebook has signed contracts for over 3 gigawatts of new solar and wind energy. Most of the contracts have been signed over the past 12 months for new solar and wind projects that will deliver energy to its hyperscale data operations.

Facebook to build its next hyperscale data center in Alabama

Facebook has chosen Huntsville, Alabama for its next hyperscale data center location.

Facebook estimates it will invest $750 million in the 970,000 square foot facility.

As with its other data centers, Facebook committed to 100% renewable energy and is looking at new solar projects in the area. The company says it is working with the Tennessee Valley Authority to establish a renewable energy tariff that will let other qualifying customers buy new renewable resources as well.

The Huntsville Data Center could be operational in 2020.

Facebook plans next data center in Utah

Facebook will build one of its hyperscale data centers in Eagle Mountain, Utah.

The 970,000 square foot Eagle Mountain Data Center will be powered by 100% renewable energy.

Facebook said the Eagle Moutain project represents an investment of more than $750 million.

The data center will use outside air to cool its 

Wednesday, August 29, 2018

Facebook establishes Express Wi-Fi Certified program

Facebook launched an Express Wi-Fi Certified partner program for access point manufacturers.

The initial list of Express Wi-Fi Certified partners includes Arista Networks, Cambium Networks, and Ruckus Networks, an ARRIS Company.

Facebook's Express Wi-Fi enables local entrepreneurs, internet service providers, and mobile network operators to offer fast, affordable internet access in local communities. Currently, Express Wi-Fi is available with 10 partners in five countries — India, Indonesia, Kenya, Nigeria, and Tanzania. People typically access Express Wi-Fi hotspots by signing up with a participating retailer and purchasing a prepaid data pack.

Facebook said Express Wi-Fi Certified hotspots must be able to perform two key tasks: authenticate people who want to use a hotspot and account for the Wi-Fi data they use.

Facebook sets 2020 target for 100% renewable power

Facebook has set 2020 as its target to reduce greenhouse gas emissions by 75% and to power 100% of global operations with renewable energy. Three years ago, the company set a goal of powering 50% of its operations with renewable power by 2018. It reached this goal by the end of 2017.

To date, Facebook has signed contracts for over 3 gigawatts of new solar and wind energy. Most of the contracts have been signed over the past 12 months for new solar and wind projects that will deliver energy to its hyperscale data operations.

https://newsroom.fb.com/news/2018/08/renewable-energy/

Tuesday, August 28, 2018

ARM and Facebook join Yocto Project for Linux in embedded devices

The Yocto Project, the open source collaboration project that launched in 2011 to help developers create custom Linux-based systems for embedded products, announced ARM and Facebook as new platinum members, joining its 20 other member companies.

The Yocto Project provides a flexible set of tools and a space where embedded developers worldwide can share technologies, software stacks, configurations, and best practices to create tailored Linux images for embedded and Internet of Things (IOT) devices. An upcoming release is expected this fall.


“The next release will demonstrate Yocto Project’s ability to efficiently build and importantly, test complete Linux software stacks which are reproducible, easily audited and totally customizable in a maintainable way,” said Richard Purdie, Project Architect of the Yocto Project.

Wednesday, July 25, 2018

Facebook posts weaker financial, stock tanks

Facebook reported weaker than expected financials and trimmed its guidance for the rest of the year. Daily average usage in Europe appears to have peaked perhaps as fallout from its troubles with user privacy,

Some Facebook metrics for Q2:

  • Daily active users (DAUs) – DAUs were 1.47 billion on average for June 2018, an increase of 11% year-over-year.
  • Monthly active users (MAUs) – MAUs were 2.23 billion as of June 30, 2018, an increase of 11% year-over-year.
  • Mobile advertising revenue – Mobile advertising revenue represented approximately 91% of advertising revenue for the second quarter of 2018, up from approximately 87% of advertising revenue in the second quarter of 2017.
  • CAPEX – Capital expenditures for the second quarter of 2018 were $3.46 billion.
  •  Cash and cash equivalents and marketable securities – Cash and cash equivalents and marketable securities were $42.31 billion at the end of the second quarter of 2018.
  • Headcount – Headcount was 30,275 as of June 30, 2018, an increase of 47% year-over-year.

Sunday, July 15, 2018

Facebook to open source eXecutable ARchives (XARs)

Facebook has decided to pursue an open source path for its eXecutable ARchives (XARs), which is a way to create self-contained executables.

XARs, which are already being used at scale  at Facebook, are described as "a system for distributing self-contained executables that encapsulate both data and code dependencies."

Facebook says XARs are the fastest way to distribute and execute large Python applications.

https://code.fb.com/data-infrastructure/xars-a-more-efficient-open-source-system-for-self-contained-executables/

Monday, July 9, 2018

Facebook presentation: Optics Inside the Data Center

Mark McKillop, Network Engineer at Facebook, and Katharine Schmidtke, Sourcing Manager of Network Hardware at Facebook, talk about challenges in Facebook's optical networks, both in backbone and in data centers.

The first part of the video covers the optical systems used to connect Facebook's POPs and data centers.

The second part discusses optical scaling challenges inside the data centers, including the potential for onboard optics in future systems.

This 30-minute video presentation was recorded at Facebook's Networking@Scale 2018 event in June in California.

See video:
https://www.facebook.com/atscaleevents/videos/2090069407932819/

Facebook's announced data centers:

U.S
Prineville, Oregon
Los Lunas, New Mexico
Papillon, Nebraska
Fort Worth, Texas
Altoona, Iowa
New Albany, Ohio
Henrico County, Virginia
Forest City, North Carolina
Newton County, Georgia

Europe
Clonnee, Ireland
Lulea, Sweden
Odense, Denmark



Facebook looks to Spiral for self-tuning, real-time services

Facebook's engineering group is developing a small, embedded C++ library called Spiral to providing the self-tuning of its data infrastructure necessary to fine-tune thousands of micro services.
Machine learning is used with Spiral to create data-driven and reactive heuristics for resource-constrained real-time services.

Facebook says software maintenance increasingly requires self-tuning capabilities because it is simply "too difficult to rewrite caching/admission/eviction policies and other manually tuned heuristics by hand."

https://code.fb.com/data-infrastructure/spiral-self-tuning-services-via-real-time-machine-learning/


Sunday, July 8, 2018

NEC selected for Bay to Bay Express subsea cable system

NEC has been selected to build a high-performance submarine cable connecting Singapore, Hong Kong and the United States.

A consortium composed of China Mobile International, Facebook and Amazon Web Services is backing the Bay to Bay Express Cable System (BtoBE).

Construction of the nearly 16,000-kilometer optical submarine cable is expected to be completed by the fourth quarter of 2020.

NEC said the BtoBE system will utilize multiple pairs of optical fiber and achieve round trip latency of less than 130 milliseconds.

"NEC is honored to be selected by the BtoBE consortium as the turn-key system supplier for this world record-breaking optical fiber submarine cable system that covers the longest distance without regeneration. The BtoBE, landing at three locations spanning across the Pacific Ocean, is designed so that once completed, it can carry at least 18Tbs of capacity per fiber pair," said Mr. Toru Kawauchi, General Manager of the Submarine Network Division at NEC Corporation. "The BtoBE will provide seamless connectivity and network diversity, while serving to complement other Asia-Pacific submarine cables, among others."

https://www.nec.com/en/press/201807/global_20180709_03.html



See also