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T1 circuit or MPLS network: How to choose
The venerable T1 circuit is making way for the high-speed, easy to manage MPLS network. While the carriers are not ripping out T1 connections, they are pressuring WAN managers to abandon them. Feature
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A WAN manager’s guide to data center interconnect
Virtualization is changing the role of the WAN for data center interconnect. WAN managers need to understand and prepare for the new requirements for data center links. Tutorial
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Deploying telepresence, video conferencing in the WAN to save companies money
The current tight economic times mean businesses must be more productive. Telepresence video conferencing is a proven productivity and creativity enhancer. Read part four of the e-Book, 'The Ultimate Guide to Gaining Control of the WAN,’ to learn mor... Tutorial
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Using WAN optimization for bandwidth management and monitoring
Discover why bandwidth management and comprehensive monitoring are critical to ensure your WAN is functioning optimally and to its fullest capacity, in part five of the e-Book 'The Ultimate Guide to Gaining Control of the WAN.' Tutorial
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WAN emulator technology primer: What to know about network emulators
This WAN emulator technology primer details what wide area network engineers and architects should know about network emulators. Learn the basics of network traffic simulation, and find out how it is used in enterprise IT. What you need to know
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Talari Networks' APN appliances offer low-cost, reliable WANs
Talari Networks' adaptive private networking (APN) appliances can lower the cost of your networking services while giving your enterprise higher reliability and more bandwidth. Sound too good to be true? Read about the pros and cons of using this sta... Feature
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WAN bandwidth management frequently asked questions
WAN bandwidth management is probably the most time-consuming aspect of a network engineer's job and is a common question on the ITKE forums. Here are the most common questions and the answers for managing WAN bandwidth. FAQ
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A virtualized server requires a dynamic WAN optimization controller
Server virtualization changes a wide area network's ability to deliver applications with adequate security, storage access and QoS configurations and policies. Learning Guide
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Virtualized applications improve with WAN optimization controllers
To simplify branch offices, enterprise IT has been implementing virtualized applications, which create significant wide area network (WAN) performance problems. To overcome these application delivery challenges, a WAN optimization controller (WOC) ca... Learning Guide
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Using WAN optimization controllers for application delivery: An introduction
Achieving acceptable application delivery performance has become a priority for wide area network (WAN) managers. Learning Guide
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Interop 2012: Can putting video in the cloud save WAN bandwidth?
The number of devices supporting video is growing; an Interop 2012 panel discusses whether putting video in the cloud can help lessen bandwidth burdens over the WAN. News | 11 May 2012
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WAN optimization for the data center interconnect
When choosing a data center interconnect WAN optimization vendor, investigate its ability to support your incumbent storage vendor. Feature | 29 Mar 2012
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2012 IT trends: Growth of video drives increased bandwidth needs
One of the 2012 IT trends is the growth of video in the enterprise. Video conferencing and video on demand traffic will take up precious WAN bandwidth. Slide show | 10 Jan 2012
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Should you allow video traffic over your enterprise WAN?
Decide whether you should support video traffic across your enterprise WAN (wide area network) using these recommendations. Q&A | 22 Nov 2011
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MPLS and Ethernet WAN connectivity send frame relay and ATM packing
Legacy WAN connectivity options, such as ATM and frame relay, are falling out of favor as businesses spend more on MPLS and Ethernet WAN services, according to In-Stat. News | 16 Sep 2011
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10 Gbps WAN emulators test backup, DR traffic on high-capacity links
Many WAN pros learn the hard way that bigger pipes don't always ensure that overnight backups finish on time, which a high-capacity WAN emulator could help eliminate. News | 03 Aug 2011
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WAN pros find Metro Ethernet services fast, cheap, simple alternative
WAN managers tasked with satisfying an insatiable hunger for bandwidth are looking to Metro Ethernet and other Ethernet WAN services for bigger, cheaper pipes. News | 01 Jul 2011
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WAN optimization cuts backup over WAN for DR from 7 days to 1
One wide area network (WAN) manager shrunk the window for his weekly 300 gigabit backup over WAN links for disaster recovery from seven days to one with WAN optimization. News | 30 Mar 2011
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Time to unplug MPLS? IT pros consider broadband for WAN connectivity
Looking to cut WAN costs associated with expensive private circuits, enterprises are considering standard broadband as a primary means of WAN connectivity for select branches. News | 01 Feb 2011
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WAN optimization vendors improve WAN video delivery with eCDN features
Networking pros struggling to improve WAN video delivery can reap the benefits of enterprise CDNs with equipment they may already have: WAN optimization controllers. News | 26 Jan 2011
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How to use iPerf to measure throughput
Learn how to use iPerf, a network testing tool to measure throughput and benchmark your WAN links. Tip
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How to calculate the cost of VPN links
Do you need to upgrade the bandwidth of your virtual private network (VPN)? Calculating link capacity will help control the cost of VPN links. Tip
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Video conferencing bandwidth requirements for the WAN
In this tip, learn to calculate video conferencing bandwidth requirements for all of the sites in your company across the enterprise wide area network (WAN). Tip
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Ping latency test results: How slow is your WAN link?
Understand your ping latency test results to determine whether your WAN link needs WAN optimization, QoS or other technologies. Tip
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Preparing your WAN for 10 GbE implementation
Where can 10 GbE be used in a wide area network (WAN) and how can you prepare the WAN for such an implementation? Read this article to find out. Tip
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Measuring WAN Latency
In this tip, learn how to measure wide area network (WAN) latency to determine whether the WAN is the source of network slowness complaints. Tip
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Using QoS to limit bandwidth
Quality of Service may be the simplest and cheapest fix to a real-time application performance problem. Learn in this tip how using QoS to limit bandwidth can decongest WAN links. Tip
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Securing and optimizing the direct-to-net branch network
When IT chooses to connect a branch network to both the Internet and the enterprise WAN, it creates the direct-to-net branch office: The WAN is only for traffic headed to internal hosts. Although this considerably reduces bandwidth demands on WAN con... Tip
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Security and optimization for backhauled branch network infrastructure
As the geographic spread of employees expands and their connections back to headquarters evolve, IT managers must understand how to optimize and secure corporate branch networks. This article explains how to speed up and secure network infrastructure... Tip
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How remote users change WAN connection and bandwidth requirements
The growth of remote users entering an increasingly virtual workplace is putting stress on WAN connections and bandwidth. How should network technology evolve to meet the demands of teleworkers? Find out in this article. Tip
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enterprise WAN
An enterprise WAN is a corporate network that connects geographically dispersed users areas that could be anywhere in the world. Definition
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WAN optimization (WAN acceleration)
WAN optimization, also known as WAN acceleration, is the category of technologies and techniques used to maximize the efficiency of data flow across a wide area network (WAN). Definition
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Wide Area Ethernet (WAE)
Wide Area Ethernet (WAE) or Ethernet WAN (also sometimes referred to as fiber or LAN extension service ) is a network carrier service that delivers high-speed wide area network (WAN) connectivity, utilizing Ethernet as the connection method. Position... Definition
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wireless WAN (Wireless Wide Area Network)
A wireless WAN is a wide area network in which separate areas of coverage or cells are connected wirelessly to provide service to a large geographic area. Definition
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bandwidth
Bandwidth is generally either (1) the amount of data that can be carried from one point to another in a given time period (usually a second) Definition
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chatty protocol
A chatty protocol is an application or routing protocol that requires a client or server to wait for an acknowledgement before it can transmit again. Definition
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Packet Order Correction (POC)
Packet Order Correction (POC) is a technique for dealing with out-of-order packet delivery. Definition
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WAN clustering (geoclustering, high-availability clustering or remote clustering)
WAN clustering, also called geoclustering, high-availability clustering or remote clustering, is the use of multiple redundant computing resources located in different geographical locations to form what appears to be a single highly-available system... Definition
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capacity planning
In information technology, capacity planning is the science and art of estimating the space, computer hardware, software and connection infrastructure resources that will be needed over some future period of time. Definition
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T1 (T-1)
Also see the T-carrier system, of which the T1 is a part. Definition
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WAN planning podcast: Future-proofing for WAN performance demands
Getting secure and acceptable WAN performance speeds under budget while keeping end users and CEOs happy can seem like an oxymoron. Listen to this WAN planning podcast with expert Bojan Simic to learn how to meet the business demands of today while f... Podcast
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Interop 2012: Can putting video in the cloud save WAN bandwidth?
The number of devices supporting video is growing; an Interop 2012 panel discusses whether putting video in the cloud can help lessen bandwidth burdens over the WAN. News
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enterprise WAN
An enterprise WAN is a corporate network that connects geographically dispersed users areas that could be anywhere in the world. Definition
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WAN optimization for the data center interconnect
When choosing a data center interconnect WAN optimization vendor, investigate its ability to support your incumbent storage vendor. Feature
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How to use iPerf to measure throughput
Learn how to use iPerf, a network testing tool to measure throughput and benchmark your WAN links. Tip
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How to calculate the cost of VPN links
Do you need to upgrade the bandwidth of your virtual private network (VPN)? Calculating link capacity will help control the cost of VPN links. Tip
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2012 IT trends: Growth of video drives increased bandwidth needs
One of the 2012 IT trends is the growth of video in the enterprise. Video conferencing and video on demand traffic will take up precious WAN bandwidth. Slide show
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Video conferencing bandwidth requirements for the WAN
In this tip, learn to calculate video conferencing bandwidth requirements for all of the sites in your company across the enterprise wide area network (WAN). Tip
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Ping latency test results: How slow is your WAN link?
Understand your ping latency test results to determine whether your WAN link needs WAN optimization, QoS or other technologies. Tip
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Should you allow video traffic over your enterprise WAN?
Decide whether you should support video traffic across your enterprise WAN (wide area network) using these recommendations. Q&A
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Preparing your WAN for 10 GbE implementation
Where can 10 GbE be used in a wide area network (WAN) and how can you prepare the WAN for such an implementation? Read this article to find out. Tip
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About Bandwidth and capacity planning
Effective capacity planning and determining how much bandwidth your WAN needs to run well is critical to network performance. This section includes methods -- including measuring and planning for bandwidth utilization and tools for WAN modeling, simulation and emulation -- that will help you maximize WAN throughput and eliminate bottlenecks.