Fluke AIRCHECK User Manual page 68

AirCheck Wi-Fi Tester
Users Manual
Table 4. 802.11n Capabilities (shown on the Access Points Details screen) (continued)
AP accepts 802.11n Greenfield
packets
AP does not accept 802.11n
Greenfield packets
AP has detected 802.11a, b, g
devices
AP has not detected 802.11a, b, g
devices
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The access point can increase speed if it uses Greenfield packets.
The access point will not accept 802.11n Greenfield packets. The user has set the
access point to never use Greenfield packets or the access point hears a, b, or g clients
and will not operate Greenfield 802.11n mode.
The access point must use protection so that it does not cause problems with a, b, or g
transmissions. Protection procedures decrease the speed of the 802.11n network.
• The access point has heard 802.11a, b, or g access points or clients.
•
A client that uses the access point has heard 802.11a, b, or g access points or
clients.
It is not necessary for the access point to use protection to prevent problems with a, b,
or g transmissions. The access point can operate at maximum speed.