Network Management Strategies for the CIO
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Will different wireless card link speeds cause network latency?
Our wireless networking expert, Lisa Phifer, explains how to avoid network latency when wireless network cards with different maximum link speeds slow down your WLAN. Ask the Expert
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Wireless LANs -- 'CCNA Official Exam Certification Library, Third Edition,' Chapter 11
This chapter examines the basics of WLANs to help you prepare for the CCNA exam. In particular, the first section introduces the concepts, protocols, and standards used by many of the most common WLAN installations today. The chapter then examines so... Chapter Download
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Vendors at Interop in a scrum over WLAN architecture
At Interop 2008, a panel discussion on WLAN architecture alternatives turned into an argument between Aruba Networks and Extricom over radio channel use. Article
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Upgrading to 802.11n: Key considerations
802.11n physical and link layer enhancements could significantly increase your WLAN's speed, capacity, reach and reliability. But realizing this potential requires proper deployment: Your 802.11n upgrade must be explicitly designed to satisfy your bu... Checklist
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802.11n Wi-Fi adoption faces Power over Ethernet hurdle
Enterprises that are looking at 802.11n Wi-Fi should make sure their chosen vendor has solved the Power over Ethernet problem. Article
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What can we expect in an 802.11n Wireless LAN standard implementation?
At what stage is 802.11n implementation in, and what changes can we expect to see with it? Learn about the standard from wireless networking expert Lisa Phifer. Ask the Expert
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Wireless security protocols -- How WPA and WPA2 work
WPA and WPA2 improve upon WEP's encryption methods for better 802.11 wireless security. WPA was carefully designed so that hardware upgrades would not be needed. The processing power of many early access points (APs) was quite limited. The RC4 cipher... Tip
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Wireless security -- How WEP encryption works
Inadequate wireless security can jeopardize critical company information. Encryption is an important part of wireless security -- but how does it work? In this tip, first in a two-part series on 802.11 wireless security protocols, learn how WEP or Wi... Tip
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Wi-Fi cellular convergence can boost mobile worker productivity
Dual-mode phones with both Wi-Fi and cellular coverage will help enterprises realize the mobility benefits that unified communications promises, while possibly cutting some costs. Article
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Introduction to wireless networks -- from 'The book of wireless'
When you're designing and building a new wireless network, or when you want to improve the performance of an existing network, it's important to understand what's going on inside the box (or in this case, inside each of the boxes that make up the net... Chapter Download