• What Is Data Center?

    A data center is a repository that houses computing facilities like servers, routers, switches and firewalls, as well as supporting components like backup equipment, fire suppression facilities and air conditioning. A data center may be complex (dedicated building) or simple (an area or room that houses only a few servers). Additionally, a data center may be private or shared. A data center is also known as a datacenter or data centre. Data center components often make up the core of an organization’s Information System (IS). Thus, these critical data center facilities usually require a significant investment of supporting systems, including air conditioning/climate control systems, fire suppression/smoke detection, secure entry and identification and raised floors for easy cabling and water damage prevention. When data centers are shared, virtual data center access often makes more sense than granting total physical access to various organizations and personnel. Shared data centers are usually owned and maintained by one organization that leases center partitions (virtual or physical) to other client organizations. Often, client/leasing organizations are small companies without the financial and technical resources required for…

    April 23, 2019 0 0 2
  • What Is Data Center Interconnect?

    Data Center Interconnect (DCI) refers to the networking of two or more different data centers to achieve business or IT objectives. This interconnectivity between separate data centers enables them to work together, share resources and/or pass workloads between one another. A data center interconnect is mainly accomplished using networking tools and techniques along with supported software and data center management processes. Data center interconnect is a technique used in enterprise IT infrastructures that have multiple owned or partnered data centers. Typically, data center interconnect is achieved by connecting data centers through a VPN, leased lines or the Internet. Once connected, these data centers can use all or selected IT resources from within the network. Some of the ways data center interconnect is used are: To connect multiple data centers within the same organization To connect partner/customer data centers with shared data and/or resources To allow for workload sharing, wherein some or the bulk of the processes are performed at the interconnected data center To pool data center resources to meet scalability needs To use an interconnected data center as a…

    April 23, 2019 1 0 4
  • A Guide to Deep Packet Inspection

    Deep Packet Inspection (DPI) is used for in-depth analysis of the packets sent over the Internet. Every parcel of digital information—including the email you send, VoIP calls you make, and websites you load—is transmitted across the web in a formatted piece of structured data known as a “packet.” Inside this packet is structured metadata that assures your data is routed to the proper destination. Analyzing these packets is a process known as deep packet inspection (DPI,) and the practice is employed daily by enterprise companies, internet service providers (ISPs,) and media companies. What is Deep Packet Inspection? Internet traffic is composed of small bundles of data known as packets. Packets wrap digital information in a bundle of metadata that identifies traffic source, destination, content, and other pieces of valuable details. Analyzing digital traffic is a lot like analyzing automobile traffic: Patterns reveal useful insights. By studying metadata like headers using Deep Packet Inspection (DPI) network specialists can learn how best to optimize servers to reduce overhead, detect and deter hackers, combat malware, other statistical information, and glean intimate details about…

    April 15, 2019 1 0 8
  • High-Speed 100G QSFP28 CWDM4 Optical Transceivers

    Since 2017, the 100G QSFP28 CWDM4 optical transceiver has been the most popular product in the DCI (Data Center Interconnection). This article mainly portrays what the 100G QSFP28 CWDM4 optical transceiver is and why it is so popular. What Is the 100G QSFP28 CWDM4 Optical Transceiver? This Multi-Source Agreement (MSA) defines 4x 25Gbps Coarse Wavelength Division Multiplex (CWDM) optical interfaces for 100Gbit/s optical transceivers for Ethernet applications including 100GbE. Two transceivers communicate over single mode fibers (SMF) of length from 2 meters to at least 2 kilometers, available in SR and LR versions. Why Are the 100G QSFP28 CWDM4 Optical Transceivers So Popular? Longer Transmission Distance The transmission distance of the 100G QSFP28 CWDM4 Optical Transceiver can reach 2km. Although the 100G QSFP28 LR4 optical transceiver can reach 10km, the cost of the 100G QSFP28 CWDM4 Optical Transceiver is much lower, and it can meet a variety of medium and long-distance transmission requirements in the data center. Therefore, 100G CWDM4 MSA Technical Specifications published by MSA is a good complement to the gap due to the high cost of 100G…

    December 28, 2018 0 0 3
  • 400G Optical Transceiver at a Glance

    The broad market prospect of the 400G optical transceiver has become the consensus of the communications industry. Therefore, many optical devices and optical transceiver manufacturers have increased their investment in this area. This article mainly analyzes the driving forces of 400G optical transceivers market and the applications of 400G optical transceivers.

    December 25, 2018 0 0 5
  • How to Ensure the Compatibility and Quality of 3rd-party Optical Transceiver?

    When it comes to optical transceiver, as we all know there are 3rd-party optical transceiver and OEM (Original Equipment Manufacturers) optical transceiver. Literally, the 3rd-party optical transceiver is produced by a third-party optical transceiver manufacturer through independent analysis and decoding according to market specifications and standards. Many the 3rd-party optical transceivers are used by many users when they need a large number of optical transceivers to connect their devices. Because the excellent vendors can provide the compatible optical transceivers with a high quality, and the 3rd-party optical transceivers lower price than OEM optical transceivers. However, how do you ensure the compatibility and quality of the 3rd-party optical transceiver? This is a problem that users need to consider when selecting the optical transceivers. This article can give you references to select the 3rd-party optical transceivers. Compatibility References 1. Is there a Data Diagnostic Monitoring Interface (DDMI) as defined by the SFF-8472 specification? DDMI is also called DDM or DOM. DDM can monitor the condition of optical transceiver. Users can remotely monitor — in real-time — received optical power, transmitted optical power,…

    December 14, 2018 0 0 4
  • What Are Supercomputing, High-Performance Computing and Cloud Computing?

    In recent years, the terms “supercomputing”, “high performance computing” and “cloud computing” have often been talked about, but most people do not seriously understand what they are and what the difference is. This article will answer these questions in detail for you. Supercomputing is based on supercomputer. Supercomputers are computers capable of supercomputing. Supercomputing uses computers to research, design products and support complex decisions. In addition to the most advanced computing hardware systems, it also includes software systems and testing tools, and algorithms to solve complex computing. At present, China’s supercomputers are in the leading position in the world. In last year’s supercomputer 500 strong selection, China’s “Sunway TaihuLight” won the championship. Although such a giant has been developed, the specific application of supercomputers in China is still in a relatively backward position compared with the United States and Germany. High Performance Computing, referred to as HPC, is the application of high-performance computers. High-performance computers are parallel computers composed of traditional ultra high-speed computers and multiple CPU. However, generally speaking, HPC is almost equivalent to supercomputing, mainly for scientific computing,…

    November 5, 2018 0 0 3

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