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Cisco Aironet Series 2700/3700 Access Points Deployment Guide
Cisco Aironet Series 3700 Access Point
802.11ac clients and is supported with the Cisco Wave-1 module but this does not negate the value
of Cisco ClientLink which is still used by the primary 802.11n radios as ClientLink benefits all
802.11a,g, and n clients.
• With regard to Cisco products, the 802.11ac module in the AP 3600 is a 5 GHz only module because
802.11ac does not scale well in 2.4 GHz due to the limited channels and bandwidth limitations (it
is not practical to bond channels in 2.4 GHz) in an enterprise deployment and non-standard “turbo
modes” don’t scale.
Understanding 802.11ac (wave-1) Elements:
Figure 67 1 Spatial Stream MCS Rates for 801.11n (left) and 1 Spatial Stream MCS Rates for
802.11ac
Figure 68 Channel Bonding Allows More Usable Bandwidth (Similar to a Multi-Lane Highway)
So, the net take away is that 802.11ac permits faster speeds, allowing clients to take advantage of the
additional bandwidth and complex modulation for over-all performance enhancement while maintaining
backward compatibility with 802.11n and 802.11a/g systems already in place.
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