Ekahau Site Survey has the capability to simulate the placement of virtual APs with features such as automatic wall importation from CAD files, auto-planner with coverage and capacity planning, fully 3D modeling (floor to floor propagation, antenna uptilt/downtilt, wall heights), and more. Now onto the meat of the topic, Predictive Modeling. With the knowledge of the wireless environment you can take the data collected into the Predictive Model (ESS) to ensure a properly calibrated simulation that closely matches the real-world deployment. To measure these anomolies or unique obstructions follow the steps outlined in a blog post written by Nigel Bowden. There is a library of many common obtructions within ESS, however these are typical losses and there are sometimes varying construction methods that result in different values. Getting accurate attenuation values for these obstructions is vital to ensure the simulation is close to real-world results. ESS Planning uses these values to predict the signal loss and propagation through the obstructions. If you know what channels neighboring networks are using and any channels that are affected by RF interference, you may be able to design the network to avoid such channels.Īnother important part of the Wi-Fi survey is to determine the attenuation values of the obstructions (walls, doors, racks, etc.) on the site. The predeployment survey can identify any neighboring Wi-Fi networks and spectrum interference. Ekahau Site Survey will be covered in our next blog post in the series. Ekahau Site Survey (ESS) can perform the Wi-Fi survey, while Ekahau Spectrum Analyzer (aka MetaGeek Chanalyzer) can perform the spectrum analysis. In addition to physical walkthroughs, it is recommended you conduct a predeployment survey (Wi-Fi and Spectrum Analysis).
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Note the location of wiring closets and switches, such that you know how to route the ethernet cabling being mindful of maximum cable lengths. A physical walkthrough of the facility can help identify potential pitfalls such as false ceilings/raised floors, drywall covering brick walls, mirrors lining walls, large metal racks, basically anything that may affect the propagation of RF signals or the placement of Access Points (APs). In order to get a proper design, it is essential to understand the environment in which the network is being deployed. Once the network requirements are determined, the network can be designed accordingly.
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Verify that there are enough switch ports to handle the number of APs being install and potential future expansion, as well as the POE (Power Over Ethernet) requirements. It is also important to gather information about the existing network infrastructure. The main goal of the requirement gathering is to determine the use case of the network which may include applications (VoWLAN aka wireless VoIP, video/audio streaming, video sharing, email, etc.), data rates (speed), and client devices (laptops, tablets, smartphones, 802.11a/b/g/n/ac). The stakeholders may range from internal management to clients/customers to end-users. If you're more visual, you can watch a video about Wi-Fi planning Aruba networks with ESS:Īs with any design it is essential to first meet with the stakeholders to determine the needs of the network. I apologize in advance for the length, but I believe that it will be an extremely valuable reference. I will detail these steps in greater detail below.
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Let's walk through the recommended steps for a proper Wi-Fi network design. In this post we will be covering how to design an Aruba wireless network using Ekahau Site Survey (ESS). The first post can be read here and provides an overview of Ekahau and its history.
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This is the second of a series of blog posts about Ekahau Wi-Fi Tools. If you have any questions about these blogs, feel free. Blogs are written by current and past Arubans employees.
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