Recently, driven by the development of AI technology in North America, the demand for interconnection between the nodes of the arithmetic network has grown significantly, and the interconnected DCI technology and related products have attracted attention in the market, especially in the capital market.
DCI (Data Center Interconnect, or DCI for short), or Data Center Interconnect, is to connect different data centers to achieve resource sharing, cross-domain data processing and storage. When building DCI solutions, not only do you need to consider the need for connection bandwidth, but also the need for simplified and intelligent operation and maintenance, so flexible and convenient network construction has become the core of DCI construction.DCI application scenarios are divided into two types: metro DCI and long-distance DCI, and the focus here is on discussing the metro DCI market.
DCI-BOX is a new generation of telecom operators for the architecture of the metropolitan network, operators expect to be able to do optoelectronic decoupling, easy to control, so DCI-BOX is also known as open decoupled optical network.
Its core hardware components include: wavelength division transmission equipment, optical modules, optical fibers and other related devices. Among them:
DCI wavelength division transmission equipment: usually divided into electrical layer products, optical layer products and optical-electrical hybrid products, is the main product of data center interconnection, consisting of racks, line side and customer side. The line side refers to the signal facing the transmission fiber side, and the customer side refers to the signal facing the switch docking side.
Optical modules: usually include optical modules, coherent optical modules, etc., an average of more than 40 optical modules need to be inserted into a transmission device, the mainstream rate of data center interconnections in the 100Gbps, 400Gbps, and now in the trial phase of the 800Gbps rate.
MUX/DEMUX: A series of optical carrier signals of different wavelengths carrying a variety of information are combined together and coupled into the same optical fiber for transmission at the transmitting end through the MUX (Multiplexer), and optical signals of various wavelengths are separated at the receiving end through the Demultiplexer (Demultiplexer).
AWG chip: DCI combined splitter MUX/DEMUX mainstream using AWG program to achieve.
Erbium Doped Fiber Amplifier EDFA: A device that amplifies the intensity of a weak input optical signal without converting it into an electrical signal.
Wavelength Selection Switch WSS: The precise selection and flexible scheduling of the wavelength of optical signals is realized through the precise optical structure and control mechanism.
Optical Network Monitoring Module OCM and OTDR: for DCI network operation quality monitoring and maintenance. Optical Communication Channel Monitor OCPM, OCM, OPM, Optical Time Domain Reflectometer OTDR are used to measure fiber attenuation, connector loss, fiber fault point location and understand the loss distribution of the fiber length.
Optical Fiber Line Auto Switch Protection Equipment (OLP): Automatically switch to the backup fiber when the main fiber fails to provide multiple protection for the service.
Optical Fiber Cable: The medium for data transmission between data centers.
With the continuous growth of traffic, the amount of data carried by a single data center, the amount of business is limited, DCI can better improve the utilization rate of the data center, has gradually become an inevitable trend in the development of data centers, and the demand will grow. According to Ciena's official website, North America is currently the main market for DCI, and it is predicted that the Asia-Pacific region will enter a high rate of development in the future.
Post time: Nov-28-2024