Reporting -> Traffic: remove bpf comment, since this seems to have been a side affect and not a related issue. the netmap output was fixed with https://github.com/opnsense/core/issues/4272

while here, also add information about the grid view for https://github.com/opnsense/docs/issues/301

source/manual/reporting_traffic.rst

@@ -6,6 +6,9 @@ Under :menuselection:`Reporting --> Traffic` you will find a traffic monitor whi
 data flowing through your firewall, measured in bps (bits per second).
 
 
+Graph
+...............................
+
 .. image:: images/reporting_traffic_sample.png
     :width: 100%
 
@@ -16,15 +19,15 @@ The graph below shows the top consumers over the same timespan, when you point t
 bandwith for the selected host (the color matches the interface).
 
 
-.. Note::
-
-    When an interface doesn't report traffic and you are certain there should be any, make sure to check if you have any
-    services enabled that use netmap (zero copy) support on the selected interface (such as IPS and Sensei).
-    When zero copy is used, packets won't by copied in the kernel in which case bpf can't read from the usual in memory buffer.
+Top talkers
+...............................
 
+Although the graphical overview also shows the most active clients on the network, sometimes it is more convenient
+to see the list of addresses and their current activity in a grid type overview.
+This is where the "Top talkers" tab comes into play, the information is quite comparable to what a command line tool as
+:code:`iftop` would display.
 
-    :code:`bpf(4)` does support a zerocopy mode, in which case it will map the kernel memory pages directly
-    (`freebsd/freebsd#310e3f9 <https://github.com/freebsd/freebsd/commit/310e3f93ddb4d35429a892af85c9b1cf4ef64ebe>`__),
-    To enable, go to :menuselection:`System -> Settings -> Tunables` and add :code:`net.bpf.zerocopy_enable` set to :code:`1`
+When opening this tab you will be presented with the most active addresses, including the amount of traffic
+passed when measured and the last time traffic was seen from or to that address.
 
-    Since this feature is marked experimental, the standard is not to use zero-copy.
+Every time the graph is updated, the grid will also be populated with new information.