Demand for Bandwidth

Bandwidth demands are growing and forecast to continue to do so in the next few years due to several trends including cloud migration.

This puts a hefty strain on enterprises faced with inflexible MPLS bandwidth contracts, a large number of sites, and downward pressures on IT budgets. A cloud-delivered SD-WAN can address these challenges by allowing enterprises to take advantage of inexpensive broadband – without sacrificing Quality of Service.

Bandwidth Demands for Large
Enterprise Networks

Bandwidth Growth Trends

That MPLS link was overprovisioned when it first went in—then later it was merely sufficient. Of late it’s either congested or really congested.

Branch office apps that lived happily on local servers continually move up into the cloud. In fact, most applications are offered now as cloud solutions. Desktops used to be local too, now VDI (virtual desktop infrastructure) means they also live on some VM in the cloud somewhere. Training, employee tutorials, customer guides, news articles—text used to be sufficient, then audio, now video has become the mainstay.

Employees increasingly use BYOD access—almost exclusively mobile devices—so that even more apps live in the the cloud. Co-locating data centers and virtualization streamline workflows and reduce IT costs, but also increase bandwidth demand and require that data be transferred predictably between all business locations.

The Top 5 WAN Challenges Include “Adding Bandwidth”

Large enterprises require reliable and scalable network connectivity. MPLS is reliable, but often not very scalable due to a combination of cost, multiyear price-negotiated contracts, strict SLAs, geographic availability and lengthy install lead times.

Internet bandwidth—broadband of any flavor, or LTE—is near ubiquitously available, quick to deploy, flexible in bandwidth, and significantly less costly. But these links have a reputation of uneven, non-guaranteed quality (delay, packet loss, jitter). Adding a broadband link to an existing MPLS link also brings the complexity—often prohibitive in a large network with thousands of sites—of managing “critical” traffic to flow over the MPLS link (which traffic? how to identify or select this traffic? how many rules? how many sites?), while allowing the “non-critical” traffic over the Internet link. Oh, and the Internet link traffic also has to be secured, but the VPNs run only on the MPLS infrastructur

SD-WAN Transport Independence

VMware SD-WAN by VeloCloud™ architecture and VMware SD-WAN technology offer
solutions to these challenges. You can economically and flexibly increase bandwidth by
aggregating circuits, and at the same time you can get the voice and video quality and
application performance you need through:

Transport Independence

Links are automatically detected and bandwidth — real-time throughput, not just a passive SLA — is measured, monitored and used to optimize traffic steering services.

Bandwidth Elasticity

VMware SD-WAN enables economical expansion of bandwidth by aggregating WAN circuits of any type, from any provider, to relieve congestion or provide faster response even for single application flows.

Enterprise-grade Performance

Application performance is guaranteed through application-aware per-packet link steering and on-demand remediation capabilities to achieve optimal performance for all traffic types including real-time voice and video.

Single-click Orchestration

Virtualization and automated configuration of business and security policies enable one-click, centrally controlled, automated traffic steering services.

Auto VPN Setup

Security policies defined on the central orchestrator trigger built-in SD-WAN capabilities to establish VPNs where and when needed, over any transport link. This enables secure communications over both branch-office-to-data-center-or-cloud VPNs, as well as branch-to-branch VPNs.

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