Author: marek Date: 2010-05-03 00:45:28 +0200 (Mon, 03 May 2010) New Revision: 1647
Modified: trunk/batman-adv-kernelland/README Log: batman-adv: Merge README with 0.2.1 release
Signed-off-by: Sven Eckelmann sven.eckelmann@gmx.de
Modified: trunk/batman-adv-kernelland/README =================================================================== --- trunk/batman-adv-kernelland/README 2010-05-02 22:45:23 UTC (rev 1646) +++ trunk/batman-adv-kernelland/README 2010-05-02 22:45:28 UTC (rev 1647) @@ -1,4 +1,4 @@ -[state: 01-01-2010] +[state: 22-03-2010]
BATMAN-ADV ---------- @@ -15,7 +15,7 @@ This is batman-advanced implemented as Linux kernel driver. It does not depend on any network (other) driver, and can be used on wifi as well as ethernet, vpn, etc ... (anything with ethernet-style layer 2). -It compiles against and should work with Linux 2.6.20 - 2.6.32. Supporting older +It compiles against and should work with Linux 2.6.20 - 2.6.33. Supporting older versions is not planned, but it's probably easy to backport it. If you work on a backport, feel free to contact us. :-)
@@ -57,10 +57,11 @@ # ping 192.168.0.2 ...
+--- If you want topology visualization, your meshnode must be configured as VIS-server:
-# echo "server" > /proc/net/batman-adv/vis +# echo "server" > /proc/net/batman-adv/vis_server
Each node is either configured as "server" or as "client" (default: "client"). Clients send their topology data to the server next to them, @@ -71,19 +72,31 @@
When configured as server, you can get a topology snapshot of your mesh:
-# cat /proc/net/batman-adv/vis +# cat /proc/net/batman-adv/vis_data
-This output format is a graphviz formatted text file which can be -processed with graphviz-tools like dot. -The labels are similar/compatible to the ETX metric, 1.0 means perfect -connection (100%), 2.0 means 50%, 3.0 means 33% and so on. +This raw output is intended to be easily parsable and convertable with +other tools. Have a look at the batctl README if you want a vis output +in dot or json format for instance and how those outputs could then be +visualised in an image.
-Alternatively, a JSON output format is available. The format can be set -using by writing either "dot_draw" or "json" into the vis_format file. -"dot_draw" is selected by default. +The raw format consists of comma seperated values per entry where each +entry is giving information about a certain source interface. Each entry +can/has to have the following values: +-> "mac" -> mac address of an originator's source interface + (each line begins with it) +-> "TQ mac value" -> src mac's link quality towards mac address of a neighbor + originator's interface which is being used for routing +-> "HNA mac" -> HNA announced by source mac +-> "PRIMARY" -> this is a primary interface +-> "SEC mac" -> secondary mac address of source (requires preceeding +-> PRIMARY)
-echo "json" > /proc/net/batman-adv/vis_format +The TQ value has a range from 4 to 255 with 255 being the best. +The HNA entries are showing which hosts are connected to the mesh via bat0 +or being bridged into the mesh network. +The PRIMARY/SEC values are only applied on primary interfaces
+--- In very mobile scenarios, you might want to adjust the originator interval to a lower value. This will make the mesh more responsive to topology changes, but will also increase the overhead. Please make sure