From Bandwidth Management to Bandwidth Governance
Businesses today are highly dependent on distributed applications to support every aspect of operations. If these applications under-perform for remote users or fail, losses of productivity, revenue and opportunity inevitably result. It is thus critical to ensure the consistent performance of applications across the network. One of the gating factors controlling application performance is bandwidth. As more applications and services are activated on the network, they contend for the finite available bandwidth. Bandwidth can be an especially critical factor for companies with small or overseas locations that may not have high-capacity network connections to the data center. Typically, IT organizations approacthis critical relationship between application performance and bandwidth by managing supply. This supply-side management approach is characterized by adding more bandwidth or implementing technologies that prioritize use of the bandwidth that's currently available. But IT organizations can no longer depend on supply-side bandwidth management alone. Demand -- driven by more applications, higher volumes of data and increasing intensity of use -- is just growing too fast. Funding for technology infrastructure is growing too slowly. And the consequences of service interruptions are too great. In fact, supply-side management alone fails to address a variety of issues. Some applications aren't very well designed for deployment on the network, so they won't perform well, regardless of how much bandwidth you throw at them. Some applications will perform a bit better with more bandwidth, but those incremental performance gains aren't worth the cost of the additional infrastructure. In some cases, management needs to consider retiring an application altogether. In other cases, steps must be taken to reduce end-user demand.
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