Software-Defined Networking provides the operational model of a VM for networks. IT uses SDN to streamline provisioning of network services from weeks to seconds. This removes the manual effort and cycle times associated with procuring, installing, and configuring traditional network hardware. As such, SDN allows network engineers to support a switching fabric across multi-vendor hardware and application-specific integrated circuits. A network administrator can shape traffic from a centralized control console without having to touch individual switches.
SDN’s powerful orchestration capabilities programmatically distribute network services in lock step with virtual machines. Enterprises use SDN to standardize and maintain pre-defined templates that consist of the network topologies and services. For example, a network engineer creates a template for a multi-tier application for development purposes. The environment can be provisioned to an application developer in seconds via self- service. The same can be done for QA, staging, and production environments – across multiple applications and services – with consistent configuration and security. SDN’s automation capabilities reduce operational expense, accelerate time-to-market, and speed IT service delivery.
SDN also streamlines operations by consolidating configuration state and instrumentation data for all network connections – both virtual and physical. Administrators have complete operational visibility of what’s occurring across the entire network infrastructure. This simplifies traffic management, monitoring, troubleshooting, and remediation.
Infrastructure Optimization & Refresh with SDN
Enterprises are using SDN to bridge and simplify datacenters without disruption. SDN works with traditional multi-tier tree-type architectures and flatter next-generation fabric architectures. The result is a common platform with the same logical networking, security, and management model. Enterprises are using SDN for a number of optimization and consolidation scenarios. For example, integrating information systems following mergers and acquisitions, maximizing hardware sharing across tenants in multi-tenant clouds, and accessing islands of unused compute capacity.
If it were up to incumbent network vendors, enterprises would continue to rip-and-replace their gear every few years with increasingly expensive hardware. Fortunately, this path is no longer your only option. SDN unlocks more compelling economics and choice. Enterprises now have flexibility regarding when and how they refresh their network infrastructure. With SDN, all that is needed to deploy a SDDC is your existing physical network infrastructure.
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