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Certification

Description

The Wireless LAN Administration course, whether in an academic format or a 5-day fast-track format, provides the networking professional a complete foundation of knowledge for entering into or advancing in the wireless networking industry. From basic RF theory to 802.11 frame exchange processes, this course delivers hands on training that will benefit the novice as well as the experienced network professional.

Prerequisites

Basic networking knowledge, including OSI model and IP subnetting.

Course Content

Introduction to 802.11 WLANs

  • Discuss the standards organizations responsible for shaping the 802.11 Wireless LAN protocol
  • Learn how standards compliance is enforced for 802.11 WLAN vendors
  • Examine the 802.11 standard and various amendments
  • Discuss additional networking standards that are commonly used to enhance 802.11 WLANs

Radio Frequency Fundamentals

  • Physical aspects of RF propagation
  • Types of losses and attenuation that affect RF communications
  • Types of modulation and coding schemes (MCS) used for 802.11 communications
  • How channels and bandwidth are related to each other in wireless networks
  • Types of Spread Spectrum used in wireless networking

RF Power Output Regulations

  • Understand international, regional, and local RF spectrum management organizations
  • Understand RF channels in the unlicensed 2.4 GHz and 5 GHz frequency ranges
  • Understand how power output limitations are enforced by the FCC for Point-to-Multipoint (PtMP) and Point-to-Point (PtP) wireless connections

Power over Ethernet

  • Recognize the two types of devices used in Power over Ethernet (PoE)
  • Recognize the differences between the two types of Power Sourcing Equipment (PSE)
  • Understand the two ways in which power can be delivered using PoE
  • Understand the importance of planning to maximize the efficiency of Power over Ethernet
  • Understand the two standards currently available for PoE
  • Powering 802.11n APs

Basic WLAN Analysis

  • Protocol Analysis
  • 802.11 Frame Types
  • Data Frames
  • Control Frames
  • Management Frames
  • Protection Mechanisms
  • Legacy Power Saving operations
  • Transmission Rates

Coordinating 802.11 Frame Transmissions

  • Differences between CSMA/CD and CSMA/CA
  • Distributed Coordination Function (DCF)
  • Network Allocation Vector (NAV)
  • Clear Channel Assessment (CCA)
  • Interframe Spacing (IFS)
  • Contention Window (CW)
  • Quality of Service in 802.11 WLANs
  • Point Coordination Function (PCF)
  • Hybrid Coordination Function (HCF)

RF Math and System Operating Margin

  • RF units of measure
  • Basic RF mathematics
  • RF signal measurements
  • Understand link budgets

802.11 Service Sets

  • Three types of service sets defined for use within 802.11 WLANs
  • 802.11 authentication and association
  • 802.11 network infrastructure
  • Roaming within a WLAN
  • Load-balancing as a method to improve congestion in WLANs

The 802.11n Amendment

  • Challenges addressed by 802.11n
  • 802.11n PHY/MAC layer enhancements
  • MIMO and SISO systems
  • 802.11n coexistence mechanisms
  • 802.11n integration and deployment considerations
  • 802.11n site surveying and analysis

Wireless LAN Operation

  • WLAN Hardware Devices
  • WLAN Software
  • Architecture Types and Evolution
  • Ad Hoc & Infrastructure Connectivity Operation
  • AP Modes
  • Bridging & Repeating
  • Mesh Networking
  • WLAN Controller Deployments
  • WLAN Profiles
  • Multichannel Architecture (MCA)
  • Single Channel Architecture (SCA)
  • WLAN Management Systems (WNMS)

WLAN Security

  • The Importance of WLAN Security
  • Security Policy
  • Legacy WLAN Security Mechanisms
  • Modern WLAN Security Mechanisms
  • Baseline WLAN Security Practices

Site Surveying

  • Defining an RF site survey
  • Spectrum Analysis
  • Types of RF site surveys
  • Manual RF site surveys
  • Predictive Modeling
  • Dense AP deployments

Antennas

  • Types of antennas and antenna systems commonly used in 802.11 WLANs
  • Antenna Polarization and Gain
  • Antenna implementation and safety
  • Types of antenna cables, connectors, and other accessories