Preface
Cloud computing is one of the hottest topics in recent years, our life is more and more inseparable from the cloud, network booking, shopping, booking, ordering and other applications emerge in endlessly. Cloud computing has changed people's way of life, but also changed the technology roadmap of the data center, in order to meet the emerging Internet applications and growing demand for data transmission, cloud computing data center network cabling is facing the following seven development trends.
One
High performance computing (100/40Gbps trunk, 25/10Gbps to server)
The traditional Ethernet grows by 10 as a multiple, and the price and power consumption will be very high from the economic point of view, which is difficult to meet the rapid growth of the data center market demand. The next generation of Ethernet 4 as a multiple of growth, 100Gbps trunk, 25Gbps to the server, the main 24 core or 12 core MPO cable, support 100Gbps or 40Gbps to the trunk; Cat.8 level by copper or copper Cat.6A, 25Gbps or 10Gbps to the server.
Two
Flat network architecture (Spine-leaf architecture, &ToR routing)
Traditional data center data flow mainly between the server and the client, we are vividly called the north-south flow, cloud computing data center data flow mainly between the data center server, we call it East-West flow. This kind of thing to exchange large amounts of data required by the data center backbone flat (Spine) and branch (Leaf) two level network architecture, this "fat tree" architecture to achieve non blocking, low latency, fast switching, prompting network wiring structure change accordingly.
The traditional data center with the main distribution area (MDA) and the level of the distribution area (HDA), EDAs (EDA) wiring three layer structure, cloud computing data center construction tends to flatten, simplify the structure of main wiring wiring area (MDA) and intermediate distribution area (IDA) two layer structure, equipment cabinet usually the top of the cabinet (ToR) switch to server jumper (Direct connect) direct way, this way to facilitate unified management, also can significantly reduce deployment time.
Three
Modularization
The traditional data center infrastructure, power supply, refrigeration, network wiring batch deployment, high cost, low deployment speed, high power consumption. Modular data center will be cabinet, power supply, distribution, refrigeration, wiring, security and other infrastructure into a whole, one-time delivery, is conducive to rapid deployment of data centers, flexible expansion, reduce power consumption.
Four
Light entering copper and retreating
Fiber virtualization driven data center uses higher performance, more cores, cloud computing data center with ToR wiring structure, there is no horizontal wiring cable and copper, the proportion is about 7:3 or more.
With the fiber core number and density increasing, the cloud computing data centers need more professional management by using optical fiber equipment, provide welding protection, bend radius protection, residual cable storage and physical protection and management, so as to ensure the reliable operation of 7x24 hours of the network, at the same time, the convenient jumper management and maintenance.
Five
Intelligent (DCIM&AIM)
Cloud computing data center is an ecosystem, which provides basic infrastructure (IaaS) or unified management platform (PaaS), and even unified software services (SaaS). With the cloud computing data center put into operation, the user flow continues to increase, the scope of management continues to expand, the administrator is facing increasing pressure: a large number of asset management, frequent movement, increase, change (MAC) maintenance, multi site management...... In order to effectively manage the ecological system, through the use of cloud computing data center data center infrastructure management (DCIM) and automatic infrastructure management (AIM) and other intelligent means to major infrastructure, real-time remote monitoring data center including power supply, temperature, security, routing, thus greatly improving the data visualization and management center efficiency.
Six
Centralized management
The traditional data center adopts distributed management mode, and the header cabinet is centralized placed into the switch and the horizontal distribution frame, which is used to manage the equipment of one column. The data center of cloud computing adopts centralized management mode, all the equipment cabinets are connected to the main wiring area (MDA) / intermediate wiring area (IDA) by optical fiber, and the optical fiber distribution rack (ODF) and branch (Spine) switches are centrally placed in the main wiring area (MDA) / intermediate wiring area (IDA). This centralized management mode is conducive to unified management, can improve the switching device port utilization, in addition to reduce the administrator footprint.
Centralized management mode
Seven
Cross connect (Cross-connect)
The traditional data center wiring generally adopts the interconnection (Inter-connect) connection mode, that is, the jumper is used to directly connect the horizontal distribution frame and the switch. The number of interconnection frame has the advantages of less disadvantage is needed in the days after the management and maintenance of the switch, easy to cause the active fault, and even network downtime.
The data center cloud computing in general in the main distribution area (MDA) or intermediate (IDA) using the wiring area cross connect (Cross-connect) connection, which switches the jumper connection to a mapping frame, daily maintenance such as network demand changes such as a need for increase or change, move the jumper (MAC), the administrator do not plug in the switch, jumper operation can be performed in between the frame and the frame level mapping.
The benefits of this cross connect (Cross-connect) approach include:
The management interface is clear, active devices and passive devices are placed in different management cabinets
No need to switch on the switch to reduce the failure of active equipment
Maintenance management is convenient after the jumper (MAC, mobile, increase, change), only need to operate in the wiring cabinet
Convenient line searching and matching
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