Specifications

10 General
Customer Is Adding 802.11n APs and Is Also Keeping Old APs
It is not uncommon that, when upgrading a b/g WLAN with a second radio for 5.0 GHz, new APs
have to be installed (if there is no slot reserved in the AP for a second radio).
Most modern APs include support for the 802.11n standard. When a second AP is installed, old
APs may be left in place to ensure that there is no interruption of the current service. The new 5.0
GHz network can then be tuned and configured for n-support and HT-enabled devices can be
moved over to the new WLAN.
This also requires additional cable drops and PoE switch ports, running two systems side by side.
Data (b/g) Voice If the WLAN contains of a lot of b/g data clients, it can be preferable
to keep them in the 2.4 GHz band and have all voice clients use the
5 GHz band.
The same planning considerations apply if DFS-channels not are
used.
Voice (g) Data This allows the 2.4 GHz band to be dedicated to voice and all data
clients, if possible, are moved to the a-band.
b/g a Comment