Månadsvis arkiv: December 2015
Nowadays, broadband services are beginning to affect people’s life in a real and significant way. The massive upsurge in bandwidth-hungry networking applications has obliged network service providers and suppliers to upgrade their network capacity and optical networks. One of the key components used to support these network performances is the low-cost, high-density SFP (Small Form-factor plugable) optical transceivers. These widely-used optical communication devices are used in Gigabit Ethernet (GbE), Fibre Channel and Synchronous Digital Hierarchy (SDH) applications.
A SFP optical transceiver is a combination of a transmitter and a receiver in a single package. The transmitter and the receiver function independently for bidirectional communication. In February 1998, leading global communication manufacturer signed a Multi-source Agreement (MSA), specifying for small optical transceivers, also known as SFF transceivers. And in September 2000, another MSA was established for SFP transceivers, that are hot-pluggable transceiver modules, while having the same size as SFF. This article details Fiberstore SFP optical transceivers mainly from two aspects: protocol and data rate, and transmission media.
A protocol basically helps with the connection between two network devices. It is important to know which protocol and data rate the switch or router supports. There are various protocols such as Ethernet, Fiber Channel, InfiniBand, SONET/SDH, CPRI and so on. Each of these protocols supports their own data rates. Gigabit Ethernet can range from 1Gb/s to 100Gb/s while Fiber Channel ranges from 1GFC (1.0625Gb/s) to 16GFC (14.025Gb/s). There are various kinds of optic modules, including transceivers and cables, can be used to achieve these different data rates. Take 10Gb/s for example, 10GBASE-SR, 10GBASE-LR, 10GBASE-ER are all interface standards that are designed for 10GbE. Among those standards, SFP-10G-SR is the most popular type among users. Fiberstore compatible Cisco SFP-10G-SR enables high-bandwidth 10G optical links with duplex LC connectors. The figure below shows what a SFP-10G-SR module looks like.
Transmission media can be single-mode fiber (SMF), multi-mode fiber(MMF) and also copper. The single-mode fiber based standard transceivers can have a transmission distance of 5km to 120km, thanks to single-mode fiber’s lower attenuation. While the multi-mode transceivers are defined to support distances ranging from 150m to 5km. As for copper based transmission, the less expensive electronics used in structured copper cabling assembly makes it an alternative to fiber patch cables in networking system. Certainly, besides SFP optical transceivers, QSFP+ transceivers can also run over copper cabling. Like Finisar FCBG110SD1C01 module, it runs over active copper cable for 40-gigabit links. This Finisar FCBG110SD1C01 module listed in Fiberstore is guaranteed to be 100% compatible with the equivalent Finisar direct-attach cables.
As a professional fiber optical product manufacturer and supplier, as well as a third party for major brands, Fiberstore has always been a leader in producing and providing high-quality fiber optical products, including SFP optical transceivers, which are fully compatible with major brands, like Cisco and Finisar. Fiberstore continues to be engaged in supplying these superior pluggable modules to meet the rapidly changing communication market needs for higher bandwidth. Fiberstore SFP optical transceivers have high-performance, and they are worth your try.
SFP optical transceivers, as the key components in network transmission, are designed with high-density and high-performance to function as high speed pluggable solutions. Fiberstore SFP optical transceivers boast of broad selections and can be customized upon your specific requests. Besides SFP, QSFP+ transceivers are also available in Fiberstore. You can visit Fiberstore for more information about optical transceivers.
Optical transport systems vendor ECI says it will develop a software-defined networking (SDN) controller based on the Open Network Operating System (ONOS) from the ON.Lab-led ONOS open source community. The systems house says it will pair offer the controller as part of its SmartLIGHT portfolio.
ECI says it decided to base the upcoming SDN controller on ONOS “at the end of thorough research.”
“We chose ONOS rather than alternative consortiums for three major reasons: 1) the ONOS platform is more suitable for WAN, which is where we play; 2) we were looking for a carrier-grade platform suited to our customers from a scale and performance perspective; and 3) its aims for truly programmable networks,” said Hayim Porat, CTO at ECI.
“At the base of our ELASTIC network strategy we have sworn to provide our customers with an ecosystem which is open, vendor-agnostic, and secure. In doing so, we believe we can offer the customer the greatest flexibility in choosing what is best for them,” Porat added.
The company did not say when the SDN controller would be available.
ON.Lab announced the open source ONOS project just over a year ago (see “ON.Lab, backed by AT&T and NTT, offers open source SDN operating system”); it joined with the Linux Foundation shortly thereafter (see “ONOS Project, Linux Foundation partner for SDN development”). The platform has undergone several revisions since it first appeared early this year, including the most recent Emu release.
“We look forward to ECI’s contributions to the community,” said Guru Parulkar, executive director and board member at ON.Lab/ONOS project. “ECI has added a great deal to our efforts by supporting the case for multilayer control of IP and optical layer networks. We are delighted that ECI shares our goals and is contributing to the initiatives of the consortium.”
Originally published at www.lightwaveonline.com/articles/2015/12/eci-to-develop-onos-based-sdn-controller.html
To accommodate the ever-growing number of operating systems and applications that need more bandwidth, to meet the growing demands for faster processing speeds, low power server inter-connect and I/O consolidation deployments, Fiberstore SFP+ direct attach cables (DACs) deliver lower power, lower latency and higher density for today’s Data Centers and Storage Area Networks.
SFP+ direct attach copper cable includes SFP+ direct attach copper cable and SFP+ active optical cable (AOC). The former, also known as twinax cable, is a SFP+ cable assembly used in rack connections between servers and switches. It consists of a high speed copper cable and two copper SFP+ modules. While the latter, SFP+ active optical cable, is designed to support single channel, high speed data link applications. This cable is a full duplex construction capable of transmitting data at rates up to 10Gb/s and supporting signal transmission at distances between 1m and 100m.
SFP+ direct attach cables allow hardware manufacturers to achieve high port density, configuration and utilization at a very low cost and reduced power budget, providing a cost-effective solution over fiber optic cables in short reach applications. Their design allows for serial data transmission up to 10Gbps in each direction.
As a low cost, low power consumption and low latency solution that is ideal for high-density, in-rack 10Gb/s connections between servers and switches, Fiberstore SFP+ direct attach cables are made of rugged twinaxial cables that are connected directly into SFP+ ports. These cables are hot-removable and hot-insertable, meaning that you can remove and replace them without powering off the switch or disrupting switch functions. They use high-performance integrated duplex serial data links for bidirectional communication with data rates of up to 10 Gbps. While meeting the ever growing need to cost-effectively deliver more bandwidth, Fiberstore SFP+ direct attached cables are really a good choice for your high-performance networking connectivity.
SFP+ direct attach copper cable generally falls on two types mentioned above: SFP+ direct attach copper cable and SFP+ active optical cable.
- SFP+ Direct Attach Copper Cable
This cable assembly is then divided into two kinds: passive and active versions.
SFP+ Passive Copper Cable—SFP+ passive copper cable assemblies offer high-speed connectivity between equipment with SFP+ ports. They are compatible with hubs, switches, routers, servers, and network interface cards (NICs) from leading electronics manufacturers like Cisco, Juniper, etc..One of popular Fibertore SFP+ passive copper cable products is CAB-SFP-SFP-5M module. Fiberstore compatible Arista CAB-SFP-SFP-5M is SFP+ to SFP+ passive copper cable assembly used to establish a 10G link. The figure shows what a CAB-SFP-SFP-5M module is.
SFP+ Active Copper Cable—SFP+ active copper cable assemblies contain low power circuitry in the connector to boost the signal. They are generally used for end of row or middle of row in data center architectures.
- SFP+ Active Optical Cable
Fiberstore SFP+ active optical cable is fully compatible with industry standard SFF-8431 Pluggable (SFP+) interface requirements and performance. It offers reliable signal transmission in applications that require cable lengths usually up to 7m, as well as an option to reduce cable bulk and weight. Actually, active optical cable can also be applied for 40G links. Like Finisar FCBG410QB1C10, Fiberstore compatible Finisar FCBG410QB1C10 is used for 40-gigabit link between QSFP ports of Finisar switches within racks and across adjacent racks with cable lengths up to 10m.
Fiberstore SFP+ direct attach cables deliver enhanced availability, agility, and security, which are fully compatible with major brands, like Cisco, Juniper, as well as Finsar and Arista (mentioned above). You can visit Fiberstore to learn more about SFP+ direct attach cable solutions.
Taking a step further in its quest to develop an efficient ecosystem for the Internet of things (Iot), Cisco partnered with Philips earlier this month to sell “smart” Internet-connected lights. While the deal in itself is not particularly large, it is in line with Cisco’s partnering strategies and reflects its firm focus on the IoT domain. Cisco has been partnering with companies that can enhance its reach in different markets, and also provide a better understanding of new industries. Its recent partnership with Ericsson and a six year old alliance with EMC EMC +0.00% and VMware VMW -1.79% on cloud computing are indicative of this.
With its recent alliance with Philips, Cisco is planning to add another element to its networking solutions for enterprise customers and strengthen its IoT portfolio. The IoT domain is heating up, and many networking companies are investing in technologies that will ensure seamless connectivity between Internet-connected devices. Interestingly, the scope for scaling IoT by focusing only on connectivity is limited, while much of the potential lies with the end devices/services/applications of the IoT environment. This is where Cisco’s Internet-connected light partnership can prove useful. However, this arena is not without challenges, as the networking company faces competition from GE, Already Current and a number of startups.
We have a $26 price estimate for Cisco, implying a slight discount to the current market price.
The IoT domain includes computing devices other than PCs, tablets and phones. Cisco estimates that the IoT market will be worth $19 trillion over the next decade, representing a $1.7 trillion market for service providers. McKinsey estimates that IoT could have an impact of up to $6.2 trillion on the global economy by 2025. The installed base for IoT devices is estimated to grow from around 10 billion connected devices today to as many as 30 billion devices (or 50 as per some estimates) by 2020. While these estimates may vary, they are in agreement regarding the huge potential of the market. Clearly there is a lot of growth potential for networking companies such as Cisco in addition to network infrastructure players and semiconductor companies.
According to Philips, its Internet-connected lighting partnership with Cisco will help it effectively address the needs of the EUR 1 billion office lighting market. The collaboration would apparently offer the best of the lighting and IT industries in the IoT domain. The lighting offered to offices will help customers save energy and money, improve offices’ operational efficiency and enhance employee productivity. With the lighting-sensor orchestration, lights will automatically turn on when a person walks into the room and turn off when he or she walks out. It will even change intensity based on employee preferences and researches around what lighting triggers maximum productivity.
The backbone of any local IoT network is the web of connected sensors, which enables seamless data flow between various devices. However, companies working on IoT technologies are most likely to reap benefits from services, devices and applications that process the data. According to Verizon, around 80% of IoT revenues come from applications and only 5% come from connectivity. Cisco-Philips’ smart lighting should help facility managers and building owners map lighting usage and subsequently control power costs. According to Philips, lighting can account for up to 40% of a typical building’s electricity use, so smart lighting could see strong demand. In an attempt to showcase the benefits of Internet-connected lighting, Cisco is installing Philips’state-of-the-art lighting systems in its headquarters.
Oroginally published at www.forbes.com/sites/greatspeculations/2015/12/16/ciscos-partnership-with-philips-reflects-its-strong-iot-focus/