802.11 Wireless LAN Fundamentals

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by: Pejman Roshan Jonathan Leary

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Summary

      Pejman Roshan is a product line manager with the Wireless Networking Business Unit at Cisco Systems. He manages the Cisco wireless LAN security, network management, and software products.

  Jonathan Leary is a product line manager with the Wireless Networking Business Unit at Cisco Systems. His primary focus is the use of wireless LAN technology in outdoor applications.

          Author Bio

      Pejman Roshan is a product line manager with the Wireless Networking Business Unit at Cisco Systems. He manages the Cisco wireless LAN security, network management, and software products.

  Jonathan Leary is a product line manager with the Wireless Networking Business Unit at Cisco Systems. His primary focus is the use of wireless LAN technology in outdoor applications.

Table of Contents

Foreword.

      Introduction.

      1. Ethernet Technologies.

      802.3 Ethernet. 802.3u Fast Ethernet. Gigabit Ethernet. Summary.

          2. 802.11 Wireless LANs.

      Overview of WLAN Topologies. 802.11 Medium Access Mechanisms. Nonstandard Devices. 802.11 MAC Layer Operations. Summary.

          3. 802.11 Physical Layer Technologies.

      Wireless Physical Layer Concepts. 802.11 Wireless LANs. 802.11b WLANs. 802.11a WLANs. 802.11g WLANs. CCA. Summary.

          4. 802.11 Wireless LAN Security.

      Wireless Security. Overview of Encryption. Encryption in the 802.11 Standard. Authentication Mechanisms in the 802.11 Standard. MAC Address Authentication. Security Vulnerabilities in the 802.11 Standard. Secure 802.11 WLANs. AES Encryption. Summary.

          5. Mobility.

      Characteristics of Roaming. Layer 2 Roaming. Layer 3 Roaming. Summary.

          6. QoS for 802.11 Wireless LANs--802.11e.

      Challenges for QoS in 802.11 Networks. QoS Mechanism Overview. Summary: The Challenges Facing EDCF and HCF.

          7. Radio Frequency Essentials.

      Radio Basics. Antenna Basics. Receiver Performance Basics. System Performance. Unlicensed Wireless. U-NII Ban