Wireless AP: 802.11ac/n: Different channel number

Note that 802.11n or 802.11ac/n might use a different channel than the
one explicitly requested when overlapping BSSes are found in the
neighbourhood.

Change-Id: I7ab45b00b7d0461fb2dfce0c3c794b99df70a823
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

1 files changed, 11 insertions, 3 deletions

diff --git a/doc/book-enea-edge-getting-started/doc/net_config_options.xml b/doc/book-enea-edge-getting-started/doc/net_config_options.xml
index 9c9dfe2..a9faf0a 100644
--- a/doc/book-enea-edge-getting-started/doc/net_config_options.xml
+++ b/doc/book-enea-edge-getting-started/doc/net_config_options.xml
@@ -916,15 +916,13 @@
       </mediaobject>
     </figure>
 
-    <note>
-      <para>Only a single Wireless AP is allowed on a physical interface. The
+    <para>Only a single Wireless AP is allowed on a physical interface. The
       validation of the <literal>wap-capable</literal> interface is done when
       adding the Wireless AP, so, in case of an error, the parameters of the
       <literal>wap-capable</literal> interface must be rechecked. This can be
       done by accessing the <emphasis role="bold">Configuration</emphasis>
       menu and selecting <emphasis role="bold">External
       Interfaces</emphasis>.</para>
-    </note>
 
     <note>
       <para>For the 2.4GHz band, the <literal>802.11 g/n</literal> wireless
@@ -934,6 +932,16 @@
       and secondary Wireless AP channels will be swapped, resulting in an
       effective channel width of 20MHz instead of 40Mhz being used.
       To avoid this, select another wireless channel.</para>
+
+      <para>For the 5GHz band, the <literal>802.11 n</literal> and the 
+        <literal>802.11 ac/n</literal> wireless modes can be configured
+      explicitly to use a specific channel number, even when Automatic
+      Channel Selection (<literal>ACS</literal>) is available. For regulatory
+      requirements compliance, channels are scanned in order to avoid
+      overlapping with existing networks. If overlaps are detected,
+      <literal>ACS</literal> will try to find another free channel,
+      resulting in a different channel number being used instead of the one
+      explicitly configured. To avoid this, select another wireless channel.</para>
     </note>
   </section>
 </chapter>