From here, administrators can promote more advanced network functions, including software defined network, but at the same time, we need to carefully consider the cable types and emerging network standards. The following are five online recommendations for understanding the latest trends and best practices for data center network management:
Chart development and maintenance is not a new approach to simplifying data center network management, and is usually disdain by IT. The creation of physical and logical network diagrams is often tedious and even difficult to update. The physical diagram should describe the hardware connection, including the distribution position of the switch and the location of the device wiring. The logical graph describes the network data stream, which provides more information than the physical map. According to your own needs to determine how to choose one, or combined use of two.
After creating the chart, determine the best solution for regular updates of the chart when changes occur. Some tools can create and update network diagrams, but they often use device discovery to build network diagrams and determine traffic, not necessarily the perfect way.
To minimize the time needed to create and maintain a chart, the scope of the chart needs to be reduced. This prevents the update of the entire chart from a single network change.
Consider the leaf ridge architecture to support new network flows
New technologies, such as superfusion infrastructure, cause data to move east-west, rather than a more traditional North to South model. Data may have a bottleneck when it passes through the network.
The leaf ridge structure is a network topology that handles advanced multidirectional data streams and helps IT solve these bottlenecks. The leaf switch integrates user data before transferring data to the "backbone" (that is, the core storage system and the server).
The leaf ridge also changes the network from three layers to two layers, reducing the number of switches and cables. However, the leaf ridge switch has more core connections than a single connector.
The leaf ridge structure also helps the logical network of the data center, because the devices can share information more directly and efficiently. Update the network topology to include the leaf and spine architecture, which can pave the way for the software definition network (SDN).
Fiber-optic cable evaluation
Integration and other IT trends often emphasize the limitation of cable capacity on the network. Optical fiber cable, not copper, can help achieve the necessary high-speed connection IT.
Some of the data center team may be familiar with fiber optic cable, in particular to more than 330 feet of cable - this is the maximum length of copper can be reached. A fiber optic cable with a SX based optical element is a common small SFP mode that supports a transmission distance of about 700 feet. The SFP model is the standard of 1 GbE, but the SFP + module can reach 10 GbE speed in the optical fiber connector.
As long as the switch supports the SFP + format, it is likely to also support the SFP module.
Fiber optic cable is developing with the use of digital diagnostic monitoring (DDM). The IT team can use DDM to solve link and exchange problems because information needs to be transmitted via cable. However, as the organization needs higher bandwidth, it is necessary to adjust the fiber cable in the future.
Understand the latest IEEE network standards
The electrical and Electronic Engineer Association (IEEE) approved four new network standards for 802.3 Ethernet in 2016, of which 802.3bq and 802.3by are very important. These two standards focus on the implementation of the 25 GbE capacity in the data center.
The 802.3bq standard emphasizes the data center network management and physical layer required for 25 Gbps and 40 Gbps, while 802.3by explains the 25 Gbps media access control parameters. These standards work together to help define a mutually compatible 25 GbE device protocol.
For data center administrators, turning to 25 GbE will mean cost reduction, but new network hardware is also needed to deal with these speeds. It is confirmed that data center switches, network interface cards, cables and other devices can handle 25 GbE.
After meeting the requirements of hardware, software, and cable, determine how to manage the workload on the 25 GbE network. Administrators need to rethink how to allocate resources to take advantage of faster bandwidth.
Improving efficiency through software - defined Technology
Flexibility, efficiency, and flexibility are the key final results of an administrator, making software - defined applications and SDN particularly attractive to data center network management.
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