Beyond 802.11n
The many features and high throughput of 802.11n might make it seem like the end-all wireless LAN technology. As with most any aspect of computing, the current state of the art is never good enough. Two 802.11 draft amendments are being developed that will take wireless performance to much greater heights. These amendments are not covered on the CCNA Wireless exam (yet), but are introduced here so that you can get a feel for the continuing evolution of 802.11 capabilities.
The 802.11ac amendment takes the best of 802.11n and offers a new generation that is much faster and more scalable. The goal is to bring wireless on a par with Gigabit Ethernet. Some of the most notable improvements are as follows:
Better channel aggregation ...
Get CCNA Wireless 640-722 Official Cert Guide now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
