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Data center networking is an architecture that aids in storing and processing data. It involves arranging network devices like routers, switches, and interfaces that connect various computing and storage devices.
Data center networking presently leverages full stack networking, which dynamically adjusts and protects the data in an organization’s environment. The data center network ecosystem comprises three-layer structures: core layer, aggregation layer, and access layer. The core layer aids in interconnecting various data center aggregation modules, the aggregation layer provides bandwidth for servers, and the access layer aids in high-density access.
Data centers are available in different sizes ranging from small server rooms to entire individual buildings. Depending on the company's needs, there are the following types of data centers available:
Three-tier data center network
This data center network architecture follows a tree-based network topology consisting of layers of three networking switches. Three-tier data center network is an approach to logically organizing the switches. It uses network devices at higher layers of network topology.
Fat tree data center network
Fat tree data center network architecture uses customized routing algorithms. Thus, it helps reduce the cross-section bandwidth caused by three-tier data center networks.
DCell
This architecture is server centric, and the servers are connected using mini switches. DCell network architecture does not have a single point of failure and thus is tolerant to faults.
The following are some core features within data center networking that can help users in various ways:
Automation: A data center networking platform is expected to achieve speed and agility. Automation in data centers helps in efficiently programming a network. It also helps automate routine processes like patching, updating, and reporting.
Security: Data security is one of the top features in data center networking. Data center networking has integrated security as part of its architecture. Integrated security helps continually monitor logs and report on security events and threats.
Centralized management: Modern data center networking architecture is expected to interconnect the resources on-premises, in cloud, and at edge, which helps to improve the organization’s visibility.
Resiliency: Data center resiliency is one of the most important features in any data center networking ecosystem. It is the data center networking environment’s ability to quickly recover from a power outage, equipment failure, or other disruptions.
Scalability: Every organization has to deal with big data in recent times. A data center must be flexible and highly scalable to process this data.
Micro segmentation: It is a tool to fight lateral security threats. Firewall rules in micro segmentation, which are network based, are managed outside the workloads. This process involves admins segmenting networks by virtual local area network (VLAN). Micro segmentation helps build zero-trust security networks.
Data center networks help companies focus their budget on the business rather than IT maintenance. There are many other benefits that data center networks offer, such as:
Safety from power outages: When the data control is outsourced, it helps in reducing the impacts of power failure. Data center networking tools in present times ensure that there is no significant impact on the data due to power loss.
Improves efficiency: Data centers privatize power. Thus, data centers notice improvements in their technological functioning and speed. This is because the power used for the central hub comes from public utilities and slows down the IT operations and efficiency. Virtualization in the networking architecture has helped improve the performance and efficiency of data centers.
Manages disaster recovery: Data center networking solutions operating in multi-cloud environments help organizations improve disaster recovery management by assisting them in choosing redundant servers from different cloud services providers. It helps in creating replicas of applications in two or more clouds.
Data center network infrastructure helps organizations with the flow of data. Below are the roles in the organization that are related to the use of data centers:
Information security officers: Data center networks handle large amounts of data, thus raising concerns about data security. Information security officers help organizations safeguard their data by investing in data protection.
IT teams: IT professionals help in the administration of the data center infrastructure. They help in keeping the flow of data in place.
Data center solutions help solve the challenges of data storage and networking. However, they also come with a set of challenges:
Data security: This is one of the major challenges of data center networking solutions. A data breach can lead to a loss of millions. Data center administrators should consider risk management software that helps protect data distributed across the network.
Capacity planning: Optimum performance depends on the capacity planning of data centers. The more capacity provisioning, the better the performance. However, organizations must remember that over provisioning can be costly and cause a loss in computing space.
Bandwidth and latency: Bandwidth and latency are other data center network challenges; thus, real-time monitoring is required to keep the data flow in check.
Real-time network monitoring: Operation-side and client-side monitoring are challenges in data center infrastructure. There could be client issues that don’t originate from within the data center, but the data center networking solution doesn’t help identify where the real issue lies.