The 802.11n amendment to the IEEE 802.11 wireless LAN (WLAN) standard was ratified in September 2009, and enables 802.11 systems to provide much higher performance and range than before. The majority of network equipment manufacturers now offer 802.11n-compliant equipment as their primary WLAN solution. WLANs based on earlier versions of the standard (802.11a, 802.11b, and 802.11g) are considered “legacy,” and there is significant risk that these existing non-802.11n systems will become obsolete. As a result, organizations deploying new WLANs should definitely implement 802.11n-compliant equipment. In addition, organizations with existing non-802.11n WLANs should begin planning the migration to 802.11n-compliant networks.

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