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RF Plan

RF Plan. Module Overview. Pre-installation activities Prepare Floor Plan Drawings Configure AP/AM modeling parameters Place APs/AMs Map FQLN Post-installation activies Dynamic heat maps AP monitoring Location tracking. RF Plan Pre-installation. Overview.

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RF Plan

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  1. RF Plan

  2. Module Overview • Pre-installation activities • Prepare Floor Plan Drawings • Configure AP/AM modeling parameters • Place APs/AMs • Map FQLN • Post-installation activies • Dynamic heat maps • AP monitoring • Location tracking

  3. RF Plan Pre-installation

  4. Overview • Use RF Plan as an initial tool to place APs • RF Plan makes many assumptions and does not factor in building construction materials (walls, doors, furniture, etc.) • Works well for typical office environments

  5. Pre-installation Activities • You will: • Create floor plan files to display floor layouts • RF Plan will: • Provide number of APs/AMs you will need for each floor/building • Derive recommended location for APs/AMs on the floor plans

  6. RF Plan • Required information for RF Plan: • Building (drawing) dimensions • Protocol (802.11a/g) • AP type • Desired data rate • Desired monitoring rate for Air Monitors • Floor maps in JPEG format

  7. Building RF Plan JPEG Top View 1st Floor 2nd Floor 175 Feet 220 Feet 300 Feet Side View 2nd Floor 1st Floor 350 Feet

  8. Placing Floors on Canvas 1st Floor 2nd Floor • Ensure JPEG Canvas: • Encompasses all floors • Is larger than the building 350 Feet Maintain relative position of floors 1st Floor 2nd Floor

  9. Importing Floor Plans Step 1 – Edit floor plan in a graphics editor Step 3 – Scale pixels per feet (or meters) against known dimension Step 2 –Move mouse to bottom right of image to measure picture (not Bldg) width and height in pixels

  10. Sizing Floor Plans Step 4 – Save floor image File as JPG • Step 5 – Calculate image dimensions: • Calculating pixels per feet (or meters) against a known dimension • Use that value to calculate dimensions of JPG image width and length in feet or meters

  11. Imaging Best Practices • Make sure the image is scaled • Images must be in JPEG format • Maximum 2048x2048 pixels • Leave a border around the image • Help triangulate Wi-Fi devices outside the building • Multi-floor buildings must have a common anchor point (elevator shafts, etc.) • The larger the dimension used for scaling, the more accurate

  12. RF Plan Availability • Included as a Tabbed Utility in AOS • Available as a Windows application from support.arubanetworks.com • Note the windows version is used for only pre-installation planning and not for post deployment heatmap displays, etc. • Results from Windows version may be imported to the Mobility Controller RF Plan

  13. Create Campus List of existing Campuses Select New Campus Enter Campus Name

  14. RF Plan • Check the Campus, then click New Building

  15. RF Plan • Click Building Dimension

  16. RF Plan • Set building (drawing) dimensions Width 1st 2nd Length 2nd Floor 1st Floor Height

  17. Coverage vs. Capacity • Site surveys traditionally attempt to minimize the number of APs • Complete coverage is crucial but also consider… • Per user throughput • Overlap for self-healing • Roaming performance

  18. RF Plan • Which bands to support? • Which APs will be used?

  19. AP Calculation Best Practices Coverage • Coverage is typically based on WLAN transmit rate • Desired speed rate defines estimated minimum connect speed • The higher the rate, the smaller the coverage area, more APs required • Capacity-based coverage is recommended for high capacity conference or training rooms • Custom coverage is for deployments where the AP count is already known Overlap • 100% (Low) – best for open spaces – warehouses, etc. • 150% (Medium) – best for office spaces • 200% (High) – offers twice the minimum APs, high redundancy/performance and dense deployments • Custom – allows specific overlap. Many office spaces work well with 120% overlap

  20. RF Plan • Decide on AM coverage rates

  21. RF Plan - Floor plans Open Floor Editor Specify level (sequence number) and optionally modify floor name Browse to background image and click “Apply”

  22. RF Plan - Floor plans Specify a zoom factor to enlarge image

  23. Initialize RF Plan Perform initial placement APs initially listed in “Suggested AP” block, unless already deployed

  24. Refine AP Placement “Start” optimizes AP placement Can also manually “drag and drop” AP to desired location

  25. Modify AP Name (optional) Double-click AP to open editor • Use AP names that help identify and locate the APs • Prior to deployment, you may define channel and power settings to override auto settings • Use note section for comments

  26. RF Plan - AM Placement

  27. RF Plan - Don’t Care

  28. RF Plan - Don’t Deploy

  29. AP Planning (continued) • Optimize AP locations • Drag and drop APs as needed (conference rooms, hallways, etc) • Avoid metal and non-RF friendly obstacles • New APs can be manually added if needed.

  30. Save Plan Information • Review and save the RF Plan • Verify the building information, AP and AM count and coverage rates • Save the building info

  31. Exporting Plans • Export RF Plan • Used to back up and move RF Plan info at campus or building levels • Export/Import between controllers or between offline version and controller • Click on include images if any images are present

  32. FQLN • Use Fully Qualified Location Name (FQLN) to associate APs and AMs to a location • FQLN Format: APname.Floor.Building.Campus • Used to map AP to Campus, Building, Floor in RF Plan • AP Name and AP Group still used for assigning profiles

  33. Setting FQLN Select building and Mapper

  34. Assign FQLN Dropdown options appear only after Campus, Building and Floor have been created Note: Setting FQLN reboots APs

  35. FQLN • NOTE: you do not have to use the FQLN mapper if you simply set the AP Name in the the AP Installation menu to be the same as the AP Name in RF Plan. The system will automatically configure the FQLN when the AP boots

  36. RF Plan Post-installation

  37. Post-installation Activities • Review dynamic heat maps and validate coverage • Track location of WLAN devices such as clients, Interfering and Rogue APs

  38. Dynamic Heat Maps Modify Heat Map presentation • Near real-time view of RF coverage and interference • Information reported by APs and AMs • Helps identify coverage holes and interference

  39. After “AP 320” Deployment Only one b/g device, so no heat map measurements to display Note “AP 320” moved from “Suggested” to “Deployed”

  40. Location Tracking (continued) Two Web UI options to locate APs and clients • Monitor • Viewing client/AP info and clicking on “Locate” • RF Plan • Performing a search for a specific client wireless MAC or AP BSSID

  41. Location Tracking: Monitor Click to map device At least three devices must be on the same channel to triangulate a device (AP or AM)

  42. Location Tracking: Monitor (continued) • Click Locate to show either contour shapes (shown here) and/or rings • “Keep data for” should be set to maximum of 10 minutes for best results • The more APs/AMs on same channel as the device the better the result will be

  43. Location Tracking: MAC Copy client MAC address or AP BSSID from Web UI screen or from CLI

  44. Use RF Plan directly to locate the device Select building Launch Location Services screen

  45. Location Tracking: MAC (continued) Click “Add Device” Enter MAC address to locate

  46. Adaptive Radio Management

  47. ARM • Adaptive Radio Management is a real-time dynamic calibration mechanism. • Purpose: • To learn and implement optimal channel plan • To learn and implement optimal power level plan

  48. How ARM Works • APs constantly scan other channels during dead intervals • AP analyzes BSSIDs and interference seen on current and other channels • AP reports back to switch when a better channel is found • “Better” is defined as “least number of APs seen on a channel” or “better SNR statistics” • Switch analyzes reports from APs and makes calculations based on known WLAN topology database • If switch finds no conflicts, it will instruct AP to move to the new channel • Dampening factor prevents channel “flapping”

  49. Power Level Adjustment • Aruba radio power levels are adjustable between 0 and 4 • 4 is highest • Calibration will automatically set the power level to avoid interference with other APs • Power levels will be dynamically adjusted to fill in holes if an AP fails

  50. Channel Selection • APs operate most efficiently when they are the only AP on the channel • Calibration will automatically assign channels to each AP to minimize interference • Only channels approved by the appropriate country regulations will be assigned • For example, in North America this is • 802.11b/g = 1, 6, and 11 • 802.11a = 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165

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