Sunday, October 29, 2017

Major Trends for 100G Ethernet Market



1. Data Center Architecture and Traffic Changes

At present, the fiber industry's transmission technology reaches gigabits per second (10G) and 40 gigabits per second (40G), which has been around for a long time. These techniques are effective and most people have no objection to this. For most users, the 40G transmission speed is more than enough. The problem of data transmission in the data center becomes apparent. Internet content providers and enterprises in the cloud data on the scale and traffic will continue to grow.
Cisco Systems predicts that Internet data (IP) traffic in the global data center will grow at an annual rate of 31 percent over the next five years. The way people use the Internet changes to make this growth. Cloud computing data volume is growing, the global mobile device access to video social media content data more and more.

Data center construction is increasing, which requires a better data management solution. The influx of traffic has led to changes in the way in which the three-tier network and other changing information flows through the data center movement (ie, a combination of user interfaces, data processors, and database management systems). Newer technologies allow parallel processing and can transfer more data. The Internet is becoming more and more complexed, and websites need more interconnection. The architecture of the data center is changing, focusing more on the integration nodes and increasing the bandwidth. Obviously, 100G will become the new standard for higher bandwidth and smarter data center architecture.

2. 10G Cannot Meet the Growing Needs of the Enterprise Network

Some large data centers have been switched. The Howard Hughes Medical Institute has recently switched to 100G technologies, delivered via the Brocade MLXE router. The data center includes 56 11G ports, all equipped with its efficiency to achieve the highest priority of the switch. Traditionally, the data center will rely on 10G multiple bundles of transmission, requiring link aggregation, and resulting in suboptimal and inefficient load balancing.

This is the 100G useless. It releases space, minimizes data aggregation, and significantly improves overall efficiency. As the size of the enterprise grows and the demand for data becomes more complex, the 100G will provide them with the urgency of bandwidth and efficiency. Companies with four or five 10G ports have witnessed their database growth and may find switching to more affordable and scalable 100G ports. Of course, this is driven by the cost and the resources of the enterprise.

3. The Continuous Development of CMOS Technology Will Make 100 G Become Mainstreams

With the evolution of 10G technology, 100G technology into the mainstream before it takes some time to develop transceiver technology, when it began to use, the cost is expensive, requires a lot of power. With the passage of time, advances in chip technology have reduced more costs and the emergence of various energy-saving technologies. This is exactly 100G technology in the market to win the reasons, and the use of CMOS technology to become the industry standard. Because the use of CMOS architecture will make it faster, while using less power.


Once the technology is mature, the 100G system architecture can save more power and provide up to 10 times the speed. At present, Cisco and Brocade Communications Systems sell 100G switches and routers at the enterprise level. But the average cost per port of its switch is $ 2,500, which means that companies using 100G network to pay a high price. However, with the development of CMOS technology, the creation of these systems will become easier and more affordable. Many optical communication manufacturers, like Gigalight, launched various kinds of 100G products, such as 100G QSFP28. These systems will reduce costs, reduce data center size and power requirements, and make 100G applications mainstream.

Wednesday, October 25, 2017

Ethernet vs Internet: What's the Difference?

As we all know, both internet and Ethernet belong to types of networks that are used to connect computers.  However, to some degree, they differ in many aspects. Then if we want to compare Ethernet vs Internet, what are their differences? In this article, we will discuss it in detail.

  Internet is one of networks, composed of millions of ones from the local to the private, the governmental, the academic, and the corporate in the globe and connected by a series of techs, such as electronic tech, wireless tech, optical fiber network tech and so on. While  the Ethernet is the base LAN  standard created by Xerox, and jointly developed into the one by Xerox, Intel and DEC. It adopts the CSMA/CD access control method and is conformed to IEEE802.3.

  In fact, the difference between them has been shown from the introduction, but the difference between them i s far more than this. More differences are reflected in these respects.


What Is the Difference Between Internet and Ethernet?


  For one thing, in terms of connection range, compared with Ethernet, the connection range of internet is far wider than that of it. Ethernet belongs to one of Local Area Network(LAN), mainly responsible for the interconnections of computers in local areas. Generally speaking, the interconnections of computers in local areas usually happen in the same building or in the neighborhood. However, with the developments of Ethernet cables, the connection range of the Ethernet can be expanded to ten kilometers. Even so, in some sense, it's impractical to achieve the long-distance interconnection between computers. While internet belongs to one of Wide Area Network (WAN), able to connect networks all over the world.  The private, the governmental, the academic, and the corporate network in the globe are connected with each other to share massive information, resources and services.

  For another thing, they distinguish in the aspects of transmission media and tech. The Ethernet applies twisted pair and fiber as the transmission media and adopts CSMA/CD(Carrier Sense Multiple Access with Collision Detection )method. While internet doesn’t use some specific tech or transmission media, it contains all transmission medias  and techs.

  In addition, they also differ in respect of the network administration. Ethernet can have one or more administrators; while parts of internet are administrated by administrators, but there is no administrators  to control the whole internet.

  Finally, there are differences in security of network. By comparison, the Ethernet is with higher security than internet. External people have no access to it; while internet is accessible to all of people.

Article souce: www.gigalight.com

Wednesday, October 11, 2017

3 Types of SFP Transceivers That You Want to Know

There are many types of SFP transceivers in the current market. Gigalight supply various types of SFP module 100% compatible with Cisco SFP, HP SFP , Juniper SFP, Netgear SFP, DELL SFP CWDM SFP, DWDM SFP, BIDI SFP, 10G SFP and so on. For many SFP transceiver types, I will introduce three main types of SFP transceiver modules in detail.

1.       CWDM SFP Transceiver :

CWDM SFP (Small Form Factor Pluggable) transceiver is actually an optical transceiver compact used in communications optics both for applications in telecommunication and communication of data on the wavelength. CWDM SFP are widely used to link the ports of the network of fiber optics, typical CWDM SFP as Cisco could support both Gigabit Ethernet and Fiber Channel . CWDM SFP modules take advantage of the SFP interface for connecting the computer and use interface connector fiber PC LC double for the connection of the network optics. Gigalight CWDM SFP transceivers can be found with a number of different types of transmitter and receiver, allowing users to decide on the appropriate transceiver for each link to provide the required optical range over the available optical fiber.


2.       DWDM SFP Transceiver:

Dense wavelength multiplexing transceivers (DWDM Division) offer DWDM transport with far lower power and the cost of a standard SFP pluggable package. DWDM SFP is available in all wavelengths of 100 GHz C / L bandwidth of ITU DWDM network. As multifrequency user interfaces that support all protocols from 100 Mbps to 4.25 Gbps. The modules meet the requirements of the Gigabit Ethernet IEEE802.3 standard ANSI specifications and channel of fiber, they are suitable for interconnections in Gigabit Ethernet environments and channel of fiber. The DWDM SFP was created to accept DWDM SONET / SDH (with or without FEC) for 200 miles links and Ethernet / fiber protocol channel of traffic to the links 80 miles.

3.       10G SFP Transceiver :

The 10G SFP Transceiver Modules refers to 10G SFP Plus transceivers, It is known that sfp + is an enhanced version of the SFP that supports data rates up to 10 Gbit /s. Several standards 10G SFP has been set free, 10GBASE-SR is for fiber optic multimode OM3, SFP corresponding more distance work 300 meters max, 10GBASE-LR is fiber optic mode only, corresponding SFP more distance work of 10 km , 10GBASE-LRM is forFDDI multimode fiber , the SFP+ supports remote work of 220 meters .