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Recommendations

Enterprises should adhere to these recommendations:

• Enterprises should perform site surveys selectively (e.g., to understand signal propagation in noisy locations)

rather than throughout the enterprise.

• Network design can help enterprises estimate cost, itemize bill of materials (BOM), and create an installation

plan. However, enterprises should avoid trying to maintain a model of their design once it is deployed because

they will quickly reach a point of diminishing returns. Enterprises should try to create several standard designs

that can be used across many buildings and floors.

• Enterprises should require that vendors document their network-design plan and BOM. In addition, enterprises

should require that vendors pay for any extra wiring and access points (APs) that are not itemized in the

original BOM.

• Enterprises should consider management products that enable a network administrator to hierarchically

navigate among many sites as well as provide the ability to navigate through simple lists of devices.

• Features such auto-power assignment, auto-channel assignment, and guest-access security are baseline

requirements for all vendors.

• Enterprises should carefully test vendor features such as load balancing, band steering, beamforming, airtime

fairness (ATF), and service-level-assurance (SLA) mechanisms. These features can improve wireless LAN

(WLAN) performance, coverage, and availability, but they are non-standard; therefore, results will vary from

vendor to vendor. Enterprises must shoulder the responsibility of testing these solutions to make certain they

satisfy enterprise requirements.

• Small and medium-sized enterprises should consider cloud-based network management systems that offer

deployments based on software as a service (SaaS). Such an approach may reduce cost and deployment

complexity.

• Enterprises should consider vendors that provide the ability to capture AP and client statistics over time and to

easily “re-play” those statistics.

• Enterprises should consider vendors that provide the ability to not only collect historical information, but also

correlate client statistics with client location over time. This enables network administrators to ascertain where

a client was located over time, identify the closest APs and stations, and provide a visual re-play of client and

network interaction.

• Enterprises should consider vendors that integrate spectrum analysis and classification with real-time network

control into their products. These systems will help the WLAN dynamically adapt to problems and will

optimize performance.

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