Huawei Marine today announced that the recently completed 14,530 kilometers of system-wide expansion project 100G - West Africa Submarine Cable System (WACS) has successfully completed commissioning and opened lines of business.
WACS by the 18 operators to invest in the league, which is connected along the west coast of Africa from South Africa, the United Kingdom, with a total length of 14,530 kilometers, in 2012 and put into use, the use of 10Gbit/s design, the initial capacity of 5.12Tbit/s. Prior to the expansion of the use of Huawei's innovative 3rd generation soft-decision forward error correction techniques and a bit interleaving technique successfully transfer rate up to 100Gbit/s; at the same time to protect the customer's original investment, the use of the existing network 10G and 100G wavelength wavelength long distance transport were mixed. After upgrading WACS system capacity reached early 14.5Tbit/s, test results and test systems well to achieve the desired objectives.
Fiber Network
Sharing fiber-optic network knowledge
Next-generation optical connector look like?
The next generation of optical connectors should be like? VECTOR project in accordance with the EU statement, at least there is no ferrule. Full name VECTOR project is universal connector easy to install new technology to accelerate the deployment of optical access networks in Europe, its goal is to develop a low-cost, on-site assembly of the optical access network with fiber optic connectors. Today, according to the project developer to say, in the thermal material technology, nano-materials, high-tech plastic, micro-fabrication and micro-mechanical alignment system to support high-tech, etc. under their intended target has been achieved.
VECTOR companies involved in project development, including a CommScope (former Tai Kerui Kan Belgium), Netherlands DEMCON advanced machinery company, Portugal Celoplas company (engaged in the development of precision parts), Belgium cloth Vrije University Brussels and Ghent University photon project, Telecom Italia, Telecom Germany. CommScope is the project coordinator.
Allegedly this no optical connector ferrule technology can already achieve more than the standard IEC 61300-3-34 Class B under insertion loss performance, but do not need to clean the coupling member, the connector yourself with self-cleaning function ( I do not know how to see the document said that the use of a gel filled shutter). Features art lies a fully automated installation tool that lets ordinary workers installed directly.
CommScope's Stephane Berghmans Introducing the item had said, "The existing connector technology requires a lot of preparation, it requires a high level of workers, which makes the connector mounting both slow and unreliable, but also to increase the cost to target non-degree .VECTOR project management is to make use of the optical connector as simple as using the electrical connector. "
Telecom Italia and Deutsche Telekom have tested this connection in their own laboratories. Telecom Italia said the test results could catch light fusion (splices) levels. Deutsche Telekom said the large number of laboratory tests showed the excellent performance of this connector, all the needs of class B connector applications can be deployed on occasion this product.
VECTOR project started from October 1, 2012, September 30 this year, announced the end, a total investment of close to 4.5 million euros.
VECTOR Showcase prospect undoubtedly exciting, but the prospect of its market prospects, edit it a bit worried. The end of the project more than two months, do not say only to see Lightwave website reported that research with the EU's scientific and technological development projects in the past is not much better than China. Europe's problem is that too many countries, market fragmentation, big companies do not actively, small companies do not fund. But this time, we see the test results of Deutsche Telekom and Telecom Italia inspirational, just do not know in the end what costs?
VECTOR companies involved in project development, including a CommScope (former Tai Kerui Kan Belgium), Netherlands DEMCON advanced machinery company, Portugal Celoplas company (engaged in the development of precision parts), Belgium cloth Vrije University Brussels and Ghent University photon project, Telecom Italia, Telecom Germany. CommScope is the project coordinator.
Allegedly this no optical connector ferrule technology can already achieve more than the standard IEC 61300-3-34 Class B under insertion loss performance, but do not need to clean the coupling member, the connector yourself with self-cleaning function ( I do not know how to see the document said that the use of a gel filled shutter). Features art lies a fully automated installation tool that lets ordinary workers installed directly.
CommScope's Stephane Berghmans Introducing the item had said, "The existing connector technology requires a lot of preparation, it requires a high level of workers, which makes the connector mounting both slow and unreliable, but also to increase the cost to target non-degree .VECTOR project management is to make use of the optical connector as simple as using the electrical connector. "
Telecom Italia and Deutsche Telekom have tested this connection in their own laboratories. Telecom Italia said the test results could catch light fusion (splices) levels. Deutsche Telekom said the large number of laboratory tests showed the excellent performance of this connector, all the needs of class B connector applications can be deployed on occasion this product.
VECTOR project started from October 1, 2012, September 30 this year, announced the end, a total investment of close to 4.5 million euros.
VECTOR Showcase prospect undoubtedly exciting, but the prospect of its market prospects, edit it a bit worried. The end of the project more than two months, do not say only to see Lightwave website reported that research with the EU's scientific and technological development projects in the past is not much better than China. Europe's problem is that too many countries, market fragmentation, big companies do not actively, small companies do not fund. But this time, we see the test results of Deutsche Telekom and Telecom Italia inspirational, just do not know in the end what costs?
Vodafone will deploy 1Gbps FTTH network in Ireland and Portugal
Vodafone Group has begun to implement fiber to the home (FTTH) projects in Ireland and Portugal, the project is 600 million euros is part of the Vodafone Group network expansion project.
Ireland will be Europe's first end-to-fiber optic network project conducted by the national electricity infrastructure. As part of SIRO (Vodafone Ireland ESB co-owned joint venture), Vodafone has started "before the end of 2018 to provide 1 Gbps fiber optic broadband network serving 51 cities and towns in Ireland" program.
Eligible to participate in the scheme must have more than 4,000 inhabitants. Carrigaline town of Cork County will be the first to get this fiber broadband service towns. According to the data show that Ireland does not exceed 50% of the fixed broadband subscribers bandwidth of 30M. Vodafone pointed out, SIRO of 1G (1000M) broadband project will bring revolutionary broadband experience Irish 500,000 homes and businesses.
Vodafone also announced plans to invest 125 million euros in Portugal FTTH network expansion plans before the end of 2016 to provide 1Gbps broadband network services for local 2.75 million homes and businesses. So far, Vodafone FTTH network covers 2.2 million homes and businesses in Portugal. In addition, Vodafone and France Telecom operator Orange also cooperate in the construction of gigabit FTTH network in Spain to provide broadband services to the local more than 200 million inhabitants. Meanwhile, Vodafone is working with the Italian electricity company Enel questionable establish a national FTTH network in the Italian plan.
Vodafone also reached an agreement with Swisscom, the market strategic partnership between the two sides extended to four years. The agreement will bring benefits roaming and high speed internet connection service broadband subscribers in Switzerland. Vodafone customers and corporate clients will roam when visiting Switzerland to Swisscom's broadband network.
Ireland will be Europe's first end-to-fiber optic network project conducted by the national electricity infrastructure. As part of SIRO (Vodafone Ireland ESB co-owned joint venture), Vodafone has started "before the end of 2018 to provide 1 Gbps fiber optic broadband network serving 51 cities and towns in Ireland" program.
Eligible to participate in the scheme must have more than 4,000 inhabitants. Carrigaline town of Cork County will be the first to get this fiber broadband service towns. According to the data show that Ireland does not exceed 50% of the fixed broadband subscribers bandwidth of 30M. Vodafone pointed out, SIRO of 1G (1000M) broadband project will bring revolutionary broadband experience Irish 500,000 homes and businesses.
Vodafone also announced plans to invest 125 million euros in Portugal FTTH network expansion plans before the end of 2016 to provide 1Gbps broadband network services for local 2.75 million homes and businesses. So far, Vodafone FTTH network covers 2.2 million homes and businesses in Portugal. In addition, Vodafone and France Telecom operator Orange also cooperate in the construction of gigabit FTTH network in Spain to provide broadband services to the local more than 200 million inhabitants. Meanwhile, Vodafone is working with the Italian electricity company Enel questionable establish a national FTTH network in the Italian plan.
Vodafone also reached an agreement with Swisscom, the market strategic partnership between the two sides extended to four years. The agreement will bring benefits roaming and high speed internet connection service broadband subscribers in Switzerland. Vodafone customers and corporate clients will roam when visiting Switzerland to Swisscom's broadband network.
Facebook will invest $ 300 million to build a data center in Taiwan
Taiwan government officials on the 2nd said, Facebook plans to build a data center in the vicinity, "Changhua HSR station" Taichung, Changhua County.
In this regard, Facebook also confirmed that the company is currently looking for a suitable location is indeed in Taiwan to build a data center, but has yet to make a final decision.
Changhua county government official said, Facebook has hired a consulting firm to help evaluate the six candidates for the position, the results of a position, "Changhua high-speed rail station" near the most promising. Changhua county government also said, Facebook in August this year has sent technical teams to evaluate the position.
It is reported that, Facebook plans to invest 10 billion Taiwan dollars (about 300 million US dollars) to build the data center. The data center will initially covering 6 hectares, and the final size will reach 20 hectares. Changhua county government also said, Facebook data center needs 16.1 kV power system, initially consume 1,000 tons of water per day.
Facebook is one of the most popular social network in Taiwan. According to Facebook said the number of months in Taiwan about 15 million active users. Facebook announced in January this year, will set up a small team in Taipei, in order to provide better technical support to Taiwan enterprises and application developers.
In this regard, Facebook also confirmed that the company is currently looking for a suitable location is indeed in Taiwan to build a data center, but has yet to make a final decision.
Changhua county government official said, Facebook has hired a consulting firm to help evaluate the six candidates for the position, the results of a position, "Changhua high-speed rail station" near the most promising. Changhua county government also said, Facebook in August this year has sent technical teams to evaluate the position.
It is reported that, Facebook plans to invest 10 billion Taiwan dollars (about 300 million US dollars) to build the data center. The data center will initially covering 6 hectares, and the final size will reach 20 hectares. Changhua county government also said, Facebook data center needs 16.1 kV power system, initially consume 1,000 tons of water per day.
Facebook is one of the most popular social network in Taiwan. According to Facebook said the number of months in Taiwan about 15 million active users. Facebook announced in January this year, will set up a small team in Taipei, in order to provide better technical support to Taiwan enterprises and application developers.
data center |
ONOS published SDN's latest operating system Emu
Open network operating system ONOS community, today announced the fifth edition of the operating system software. Pursuant before each edition are named alphabetically from one bird Avocet, traditional Black bird, Cardinal, Drake, and this version of the software is named after an Australian Emu ostrich named. This is also a year ONOS continuous release of the fifth edition of the software. ONOS indicate this release demonstrates the continued ONOS they will work together to create a real partnership effort SDN / NFV solutions. ONOS has quickly become a operators and equipment manufacturers can rely on it to create SDN / NFV solutions, the introduction of new business models, and from SDN / NFV business profitable platform.
This version of the software, including the contribution ONOS communities such as IP Multicast, improve SDN-IP platforms, including CORD (Central Office Re-Architected as a Data Center), packet / optical, and other key business functions SFC chain applications improve, and to project an open platform for the NFV OPNFV and OpenStack support.
ON.Lab engineering VP Bill Snow expressed, ONOS community continues to accelerate each quarter release, this release is becoming a habit for ONOS future success will be very important. They were very happy to see Emu published.
ONOS also announced the release of Emu version of the system including access to ECI, ClearPath Networks and participation from China BUPT FNlab like. Last month, Alcatel-Lucent also announced to join ONOS project.
Emu new features include:
Huawei to support OpenStack and OPNFV the Brahmaputra integrated contribution, Fujitsu predetermined resource subsystem work and support the work of CORD SK Telecom for providing mobile network.
IP Multicast --DirecTV multicast architecture will continue to contribute. To support multicast applications, ONOS create ONOS forward multicast applications MFWD.
GUI-ONOS new MFWD CLI and REST API supports external operators and application inspection modify MFWD state.
Business function chain - Huawei for VTN (virtual tenant network) system supports ONOS Contribute Layer 2 and Layer 3 virtual network applications and business functions IETF chain of SFC
CORD-- forthcoming and AT&T to expand field trials in the first half of next year
Adaptive streaming surveillance - Korea Electronics and Telecommunications Research Institute ETRI contribution
SDN-IP-- supports connection to external network applications, using BGP.
In the evaluation of LR, CORD and support for OpenStack and OPNFV is seen as the most important improvement in this edition ONOS operating system.
ONOS is an open source ON.Lab Management SDN network operating system, mainly for service providers and large enterprises the ability to create and deploy the hardware, including the white card switch. December 5, 2014, released the first version of the open source ONOS, and high-profile service providers and technology suppliers are involved in ONOS projects, such as AT&T, Cisco, Ciena, Ericsson, Huawei, NTT Communications and Telecom. ONOS is considered to be the leading IT vendors to OpenDaylight community a telecommunications countermeasures. Currently ONOS has been more and more telecom operators and equipment manufacturers support.
This version of the software, including the contribution ONOS communities such as IP Multicast, improve SDN-IP platforms, including CORD (Central Office Re-Architected as a Data Center), packet / optical, and other key business functions SFC chain applications improve, and to project an open platform for the NFV OPNFV and OpenStack support.
ON.Lab engineering VP Bill Snow expressed, ONOS community continues to accelerate each quarter release, this release is becoming a habit for ONOS future success will be very important. They were very happy to see Emu published.
ONOS also announced the release of Emu version of the system including access to ECI, ClearPath Networks and participation from China BUPT FNlab like. Last month, Alcatel-Lucent also announced to join ONOS project.
Emu new features include:
Huawei to support OpenStack and OPNFV the Brahmaputra integrated contribution, Fujitsu predetermined resource subsystem work and support the work of CORD SK Telecom for providing mobile network.
IP Multicast --DirecTV multicast architecture will continue to contribute. To support multicast applications, ONOS create ONOS forward multicast applications MFWD.
GUI-ONOS new MFWD CLI and REST API supports external operators and application inspection modify MFWD state.
Business function chain - Huawei for VTN (virtual tenant network) system supports ONOS Contribute Layer 2 and Layer 3 virtual network applications and business functions IETF chain of SFC
CORD-- forthcoming and AT&T to expand field trials in the first half of next year
Adaptive streaming surveillance - Korea Electronics and Telecommunications Research Institute ETRI contribution
SDN-IP-- supports connection to external network applications, using BGP.
In the evaluation of LR, CORD and support for OpenStack and OPNFV is seen as the most important improvement in this edition ONOS operating system.
ONOS is an open source ON.Lab Management SDN network operating system, mainly for service providers and large enterprises the ability to create and deploy the hardware, including the white card switch. December 5, 2014, released the first version of the open source ONOS, and high-profile service providers and technology suppliers are involved in ONOS projects, such as AT&T, Cisco, Ciena, Ericsson, Huawei, NTT Communications and Telecom. ONOS is considered to be the leading IT vendors to OpenDaylight community a telecommunications countermeasures. Currently ONOS has been more and more telecom operators and equipment manufacturers support.
The first 10 months of the communication device fixed assets investment 93.37 billion yuan
January to October, China's communications equipment industry completed an investment of 93.37 billion yuan, an increase of 12.9%, lower than 2.2 percentage points from January to September.
Data show that from January to October 2015, the electronic information industry, new projects in 8190, up 18.9%, higher than 0.7 percentage points from January to September, higher than the same period last year 19.1 percent. The number of new projects in the communications equipment industry grew 28.1%, respectively.
It is reported that from January to October 2015, China's electronic information industry 500 million yuan project is completed fixed assets investment 1.11646 trillion yuan, an increase of 14.5%, lower than 0.6 percentage points from January to September, but still higher than the same period last year 3.5 percentage points higher than the same period of industrial investment (8%) 6.5 percentage points. January to October, the electronic information industry new fixed assets 594.91 billion yuan, an increase of 25.5%, higher than the 0.2 percentage point from January to September, 15.2 percentage points higher than last year.
Data show that from January to October 2015, the electronic information industry, new projects in 8190, up 18.9%, higher than 0.7 percentage points from January to September, higher than the same period last year 19.1 percent. The number of new projects in the communications equipment industry grew 28.1%, respectively.
2015 1-10 month of industry investment in fixed assets |
It is reported that from January to October 2015, China's electronic information industry 500 million yuan project is completed fixed assets investment 1.11646 trillion yuan, an increase of 14.5%, lower than 0.6 percentage points from January to September, but still higher than the same period last year 3.5 percentage points higher than the same period of industrial investment (8%) 6.5 percentage points. January to October, the electronic information industry new fixed assets 594.91 billion yuan, an increase of 25.5%, higher than the 0.2 percentage point from January to September, 15.2 percentage points higher than last year.
Development Status SDN technology
SDN technology I believe we are no stranger to many people even have ears hear the calluses. After a period of controversy, SDN has finally been recognized by some of the data center market, began expanding the size of the relevant market, the market size in 2015 is expected to SDN switches and controllers will be more than 1.4 billion US dollars, and by 2019, this figure will reach $ 12 billion. SDN technology data center has been gradually recognized by the market for the development of the data center has brought vitality, which just a few years ago raised when SDN technology is very different, a lot of technical conservatives no longer ignore the existence of SDN technology, began to accept even like SDN technology, so the market opportunity came out. Compared to a few years ago talk SDN technology, now we have begun to emerge scale commercial trial, but to the number of data centers are being tested SDN technology program, a thriving affect SDN technologies emerge.
SDN is a change in the traditional network technology, breaking the technical barriers to the traditional network, allowing network technology to open. In the data center, the only network technology is the most closed technique, each network technology manufacturers all play each, have a lot of proprietary technology, which makes a lot of network equipment interoperability difficult, to the development of network technology, data center development have brought resistance . The network has become a stumbling block to the rapid development of the data center, it must make changes to the network. It is in this context, SDN onto the stage was. Although SDN wonderful dance, can not understand the appreciation of the audience are seated audience, or even think of SDN danced well ugly, so the emergence of SDN be more challenged, the development of resistance is not small, but not the network Support giant companies, almost unable to move. Not long, cloud computing, big data, virtualization technologies are fire, these new technologies detonated a data center, however, these techniques rely on a network are SDN, which highlights the importance of the SDN, only have the ability to network SDN to cloud computing, big data, virtualization techniques communion. At this Internet giant manufacturers have to accept SDN, joint networking vendors strive together for the network open. This time, SDN really angry, especially since 2015, with SDN network technology based data centers around the world, the country is also true. Three operators SDN and network manufacturers to do the test in the actual deployment of network applications, three Internet giants have been deployed in the data center SDN technology, these SDN deployment has played a good role model, peace, human security, government, banks, etc. hundred hundred lines industry giants are beginning to test and deployment of SDN, SDN technology has been widely promoted.
SDN hot market is one thing. In fact, from a technical point of view, is not currently commercially available SDN SDN original definition, in accordance with the definition of SDN by the controller to automatically manage the entire network, issued a stream table, traffic forwarding through the flow meter. This design for completely new data center, can be adapted, but the face of massive existing data center, are facing can not be practical situation. Massive data center contains a variety of network equipment, different manufacturers, different protocols and different specifications, which SDN controller is also compatible with these devices can not be, and traditional network devices do not support flow table, so that the data center is not possible to deploy SDN, which will replace all of these devices, these devices for the data center is the most precious asset, needs to be replaced gradually, upgrading it to deploy SDN brought great difficulty. Even for the new data center, we need the support of all network devices send flow table, and now all network controller manufacturers can not compatible with each other, so that the construction of such a SDN network, you can only choose an online vendor of all devices and controllers , which for a data center is very negative, which will purchase network equipment and a lack of future devices on the network operation and maintenance bargaining power, so in general the data center will purchase two to three network equipment manufacturers of equipment, compared with each other, merit-based selection, Thus there is a number in the network of network equipment, SDN nature can not be deployed, SDN technology to unify the online world is still a long way to go.
The current status of data centers SDN technology applications actually uses two deployment options, one is no controller scheme, which is clearly still a need for manual configuration of network equipment, changes in servers, network devices need to manually do some networking configuration change, but also the deployment of such networks VXLAN, NFV, TRILL and other SDN with technology, these techniques can be realized through a virtual machine across a data center server stateless migration, which no controller program but also to allow data center in the future Prepare to have the controller direction; the other is to have controller solutions, network equipment in the fiber optic interconnect good, good basic configuration interconnect port after delivering network configuration by the controller, when issued not flow table configuration, but the actual network configuration, such as ARP, MAC, routing these network elements to achieve up among all the devices within the network. When such change or increase during network equipment NE, own calculation by the controller to automatically deliver the configuration, which will greatly reduce the workload of operation and maintenance, the benefits it brings to the data center is obvious. This program, although not with a controller flow table under real hair, but already has a network of automated management software capabilities, the most important is that such programs can be compatible with existing data center network, is currently the most popular SDN program, which Species SDN program is not lofty, very down to earth, it was widely recognized. The last is a natural flow table SDN standard definition programs, this ideal SDN program, in fact, there is little use, but in some technical strength of strong research data center testing is still relatively far away from the actual commercial.
Although SDN applications and SDN standards vary, but gained more recognition in the data center began large-scale deployments. This SDN program is still not break the barriers between network technology, manufacturers of controllers on different networks have different, because there is no flow table, naturally they do not comply with OpenFlow protocol, so the current controller for manufacturers but also between the various networks closed, not for outsiders. This SDN solutions for data center operation and maintenance convenience brought on, but still not breaking the blockade network between manufacturers, have to say is a pity. However, SDN development just on the right track. I believe that with the white box switch mature, chip manufacturers on OpenFlow support is getting better, the real SDN technology will obtain greater future development, data center network inevitably more open.
SDN is a change in the traditional network technology, breaking the technical barriers to the traditional network, allowing network technology to open. In the data center, the only network technology is the most closed technique, each network technology manufacturers all play each, have a lot of proprietary technology, which makes a lot of network equipment interoperability difficult, to the development of network technology, data center development have brought resistance . The network has become a stumbling block to the rapid development of the data center, it must make changes to the network. It is in this context, SDN onto the stage was. Although SDN wonderful dance, can not understand the appreciation of the audience are seated audience, or even think of SDN danced well ugly, so the emergence of SDN be more challenged, the development of resistance is not small, but not the network Support giant companies, almost unable to move. Not long, cloud computing, big data, virtualization technologies are fire, these new technologies detonated a data center, however, these techniques rely on a network are SDN, which highlights the importance of the SDN, only have the ability to network SDN to cloud computing, big data, virtualization techniques communion. At this Internet giant manufacturers have to accept SDN, joint networking vendors strive together for the network open. This time, SDN really angry, especially since 2015, with SDN network technology based data centers around the world, the country is also true. Three operators SDN and network manufacturers to do the test in the actual deployment of network applications, three Internet giants have been deployed in the data center SDN technology, these SDN deployment has played a good role model, peace, human security, government, banks, etc. hundred hundred lines industry giants are beginning to test and deployment of SDN, SDN technology has been widely promoted.
SDN hot market is one thing. In fact, from a technical point of view, is not currently commercially available SDN SDN original definition, in accordance with the definition of SDN by the controller to automatically manage the entire network, issued a stream table, traffic forwarding through the flow meter. This design for completely new data center, can be adapted, but the face of massive existing data center, are facing can not be practical situation. Massive data center contains a variety of network equipment, different manufacturers, different protocols and different specifications, which SDN controller is also compatible with these devices can not be, and traditional network devices do not support flow table, so that the data center is not possible to deploy SDN, which will replace all of these devices, these devices for the data center is the most precious asset, needs to be replaced gradually, upgrading it to deploy SDN brought great difficulty. Even for the new data center, we need the support of all network devices send flow table, and now all network controller manufacturers can not compatible with each other, so that the construction of such a SDN network, you can only choose an online vendor of all devices and controllers , which for a data center is very negative, which will purchase network equipment and a lack of future devices on the network operation and maintenance bargaining power, so in general the data center will purchase two to three network equipment manufacturers of equipment, compared with each other, merit-based selection, Thus there is a number in the network of network equipment, SDN nature can not be deployed, SDN technology to unify the online world is still a long way to go.
The current status of data centers SDN technology applications actually uses two deployment options, one is no controller scheme, which is clearly still a need for manual configuration of network equipment, changes in servers, network devices need to manually do some networking configuration change, but also the deployment of such networks VXLAN, NFV, TRILL and other SDN with technology, these techniques can be realized through a virtual machine across a data center server stateless migration, which no controller program but also to allow data center in the future Prepare to have the controller direction; the other is to have controller solutions, network equipment in the fiber optic interconnect good, good basic configuration interconnect port after delivering network configuration by the controller, when issued not flow table configuration, but the actual network configuration, such as ARP, MAC, routing these network elements to achieve up among all the devices within the network. When such change or increase during network equipment NE, own calculation by the controller to automatically deliver the configuration, which will greatly reduce the workload of operation and maintenance, the benefits it brings to the data center is obvious. This program, although not with a controller flow table under real hair, but already has a network of automated management software capabilities, the most important is that such programs can be compatible with existing data center network, is currently the most popular SDN program, which Species SDN program is not lofty, very down to earth, it was widely recognized. The last is a natural flow table SDN standard definition programs, this ideal SDN program, in fact, there is little use, but in some technical strength of strong research data center testing is still relatively far away from the actual commercial.
Although SDN applications and SDN standards vary, but gained more recognition in the data center began large-scale deployments. This SDN program is still not break the barriers between network technology, manufacturers of controllers on different networks have different, because there is no flow table, naturally they do not comply with OpenFlow protocol, so the current controller for manufacturers but also between the various networks closed, not for outsiders. This SDN solutions for data center operation and maintenance convenience brought on, but still not breaking the blockade network between manufacturers, have to say is a pity. However, SDN development just on the right track. I believe that with the white box switch mature, chip manufacturers on OpenFlow support is getting better, the real SDN technology will obtain greater future development, data center network inevitably more open.
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