Adaptive ap, Physical layer features – Brocade Mobility RFS7000-GR Controller System Reference Guide (Supporting software release 4.1.0.0-040GR and later) User Manual

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Brocade Mobility RFS7000-GR Controller System Reference Guide

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Software overview

1

Adaptive AP

An adaptive AP (AAP) is a Brocade Mobility 7131N-FGR Access Point adopted by a wireless switch.
The management of an AAP is conducted by the switch, once the Access Point connects to the
switch and receives its AAP configuration.

An AAP provides:

local 802.11 traffic termination

local encryption/decryption

local traffic bridging

tunneling of centralized traffic to the wireless switch

The connection between the AAP and the switch can be secured using IPSec depending on
whether a secure WAN link from a remote site to the central site already exists.

The switch can be discovered using one of the following mechanisms:

DHCP

Switch fully qualified domain name (FQDN)

Static IP addresses

The benefits of an AAP deployment include:

Centralized Configuration Management & Compliance - Wireless configurations across
distributed sites can be centrally managed by the wireless switch or cluster.

WAN Survivability - Local WLAN services at a remote sites are unaffected in the case of a WAN
outage.

Securely extend corporate WLAN's to stores for corporate visitors - Small home or office
deployments can utilize the feature set of a corporate WLAN from their remote location.

Maintain local WLAN's for specific applications - WLANs created and supported locally can be
concurrently supported with your existing infrastructure.

For an overview of AAP and how it is configured and deployed using the switch and Access Point,
see

“Adaptive AP”

on page 487.

Physical layer features

802.11a

DFS Radar AvoidanceDynamic Frequency Selection (DFS) is mandatory for WLAN equipment
intended to operate in the frequency bands 5150 MHz to 5350 MHz and 5470 MHz to 5725
MHz when in countries of the EU.
The purpose of DFS is:

Detect interference from other systems and avoid co-channeling with those systems (most
notably radar systems).

Provide uniform spectrum loading across all devices.
This feature is enabled automatically when the country code indicates that DFS is required
for at least one of the frequency bands that are allowed in the country.

TPC Transmit Power Control (TPC) meets the regulatory requirement for maximum power and
mitigation for each channel. TPC functionality is enabled automatically for every AP that
operates on the channel.

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