abednarz
Executive Editor

Don’t be a WAN optimization laggard

Opinion
Nov 29, 20073 mins

* Aberdeen Group lays out best practices for optimizing WAN resources, accelerating apps

If you’re still thinking that simply increasing bandwidth is going to solve your application delivery woes, it might be time to give up that notion. Most companies have tried adding bandwidth capacity, but that alone isn’t going to bolster application response times as much as end users would like.

If you’re still thinking that simply increasing bandwidth is going to solve your application delivery woes, it might be time to give up that notion. Most companies have tried adding bandwidth capacity, but that alone isn’t going to bolster application response times as much as end users would like.Consider this: In a survey of 235 companies, 93% of respondents said they increased their bandwidth over the last two years, but only 52% saw an improvement in application response times and only 36% saw WAN latency decrease.What’s needed is a more comprehensive approach to WAN optimization. Aberdeen Group, which conducted the survey, found the companies that are best-in-class when it comes to WAN optimization do a lot more than simply increase bandwidth. They study application performance, put policies in place for prioritization of network traffic, commit staff to the effort, invest in key technologies, and measure the results of their efforts. (Check out my last newsletter for more details on how Aberdeen distinguishes between best-in-class, industry average and laggard organizations, in terms of WAN optimization tactics.)For companies that want to escape the “throw more bandwidth at the problem” rut, Aberdeen lays out tips for getting better mileage out of WAN resources. Here are some of the highlights:* Develop policies and deploy tools for prioritizing WAN traffic. “… organizations need to make decisions about how they want their WAN bandwidth to be used and deploy technology solutions to enable network managers to reinforce those decisions,” the report reads.* Define traffic thresholds and plan WAN capacity based on historic data. Companies that can view bandwidth consumption per network location, and per application, can better plan for changes in capacity and preserve optimal application performance, Aberdeen says.Centralize management of WAN optimization appliances. The ability to manage remote WAN appliances from a central location is critical if a company wants to get to best-in-class performance, Aberdeen says.For lots more tips and information, check out the full report, “Optimizing WAN for Application Acceleration,” sponsored by Virtela Communications, Shunra, Mazu Networks and Exinda Networks. A free copy is available (registration required) on Aberdeen’s site

* Implement auto alerts for issues with application performance. The quicker network managers become aware that traffic has reached a defined threshold, the faster any performance problems can be repaired.

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abednarz

Ann Bednarz is the executive editor of Network World. Ann is a longtime IT journalist and has spent 26 years writing and editing for Network World, where she has worked as a news reporter, managed product testing and reviews, and developed features and how-to articles for an audience of network professionals and data center managers. Over the last two years, she has conceived and edited award-winning content for Network World that includes 2025 Jesse H. Neal Award finalists, 2025 Azbee Award regional winners and national finalists, and 2024 Eddie & Ozzie Award finalists.

Ann holds a bachelor’s degree in architecture and spent the early part of her journalism career writing about architectural design and construction. In her free time, she keeps those skills alive through DIY projects.

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