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Radio Resource Management. Radio Resource Management. Radio Resource Management Software: Embedded in WLC. Transmit Power User Load Management Auto Channel Management Interference Detection and Avoidance. Rogue Detection and Containment Coverage Hole Management Mobility Management.

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radio resource management1
Radio Resource Management

Radio Resource Management Software: Embedded in WLC

Transmit Power

User Load Management

Auto Channel Management

Interference Detection and Avoidance

Rogue Detection and Containment

Coverage Hole Management

Mobility Management

All Channels Scanned While Offering Service

Country Channels Only or All Channels

All 802.11 Packets Collected and Characterized

Rogue Beacons, Rogue Clients, 802.11 Interference and Matched Against IDS Signatures

Key RF Stats Profiled

AP Received Energy

Total Energy on Each Channel

Non-802.11 Noise

Non-802.11 Noise Heard on Channel

802.11 Interference (Described as %busy)

802.11 Packets Heard During Sampling Intervals

Utilization

More Emphasis Given to APs That Require More Bandwidth

LWAPP AP

WLC

automatic rf grouping

WLCs Elect a Leader to Analyze RF MeasurementVariables and Make Optimal Channel and Power Decisions for the Whole System; Changes Are Made Locally If Possible; Dampening for System Wide Changes

< –80dBm

  • Neighbor Messages
  • Sent at Full Power
  • WLC IP/RF Group Name
  • Operating channel
  • Authenticated
  • If APs on different WLCs hear neighbor messages at -80 dBm or stronger, they group their RF domains
  • Channel and power then computes as a group
Automatic RF Grouping
  • Auto-RRM negates the need to configure each AP
  • Automatic channel and power selection
    • Performed in real-time
    • Computed across multiple WLCs
    • Automatically performs ongoing configuration adjustments
  • Over-ride capability for non-typical installs
    • On-demand RRM
    • Manual channel and power configuration

WLC A

RF Group = Networkers

WLC B

RF Group = Networkers

rrm thresholds
RRM Thresholds
  • RRM will be postponed on a per-AP basis where traffic remains in the Platinum QoS (Voice) queue
  • RRM thresholds are for alerting only
  • By default, only the channels used for data are factored into RRM scanning; if needed, select All Channels

In the WLC WebGUI:

Wireless > 802.11x RRM> AutoRF

building block dynamic rf
Building Block: Dynamic RF

RF channel “1”

RF channel “2”

RF channel “3”

Monitoring

Monitoring

Monitoring

Cisco Hardware Layer

Each AP provides traffic delivery and RF monitoring (Wireless IDS).

real time rf management
Real-Time RF Management

DynamicChannelAssignment

RF channel “1”

RF channel “6”

RF channel “11”

DynamicPowerOptimization

Cisco AironetAccess Points

Cisco Hardware Layer

  • Eliminate coverage holes
  • Optimize coverage area
  • Avoid interference & Improve performance
  • Reduce “hands on” WLAN management
real time configuration management

Channel 44Interference

Real-time Configuration Management

Minimize the Impactof Noise and Interference

Channel 36

Channel 44

Channel 52

Channel 60

better network performance dynamic load sharing
Better Network PerformanceDynamic Load Sharing

Solving Performance & Capacity problems in high density areas (e.g. conference rooms, cafeteria)…

better network performance dynamic load sharing1
Better Network PerformanceDynamic Load Sharing

Solving Performance & Capacity problems in high density areas (e.g. conference rooms, cafeteria)…