© 2012 Aerohive Networks CONFIDENTIAL

Devin AkinChief Wi-Fi Architect

High-DensityWi-Fi DesignTips and Tricks

© 2012 Aerohive Networks CONFIDENTIAL 2

Design Considerations

• Determining Required Capacity› Client Device Types and Quantity› Targeted Application Throughput

(per User/Device)

• Key RF Design Principles› Leverage 5 GHz Bands For Capacity› Primarily Use 20 MHz Channel Widths› Create a Balanced Link with Clients

© 2012 Aerohive Networks CONFIDENTIAL 3

Design Considerations (cont.)

• Site Surveying is a MUST› Types: Predictive, Active, Passive› Pre-Deployment and Post-Deployment› Cell Sizing to Maximize SNR› Maintain Clients at High Data Rates› Minimize CCI / ACI

© 2012 Aerohive Networks CONFIDENTIAL 4

Design Considerations (cont.)

• Designing Around the Facility Characteristics› Leverage RF Obstructions for Channel Reuse› Carefully Consider AP Mounting Locations› Co-locating APs to Increase Capacity› Appropriate Use of Antennas

© 2012 Aerohive Networks CONFIDENTIAL 5

Network Configuration & Features

• Bandwidth Management Techniques› Use WPA2 (AES-CCMP) or Open (no encryption)› Enable WMM & Prioritize Key Applications› Disable Low Data Rates› Minimize Airtime Utilization› Client Rate Limiting

© 2012 Aerohive Networks CONFIDENTIAL 6

Network Configuration & Features (cont.)

• Performance Enhancement Features› Bi-Directional Band Steering› Client Load Balancing› Airtime Fairness and Client SLA

Configured Band Steering Ratio

© 2012 Aerohive Networks CONFIDENTIAL 7

Network Configuration & Features(cont.)• Wired Network Requirements› GigEth Switch Ports and

PoE(+)› RADIUS Server Redundancy› IP Addressing & Subnet Sizing› Internet / WAN Bandwidth

• Network Management› On-Premise Management› Performance Monitoring &

Tuning

1000 MbpsPoE

© 2012 Aerohive Networks CONFIDENTIAL

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