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Difference between revisions of "Mesh/BATMAN-adv"
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Jwentwistle (talk | contribs) (added network coding) |
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= [http://downloads.open-mesh.org/batman/manpages/batctl.8.html batctl] configuration= | = [http://downloads.open-mesh.org/batman/manpages/batctl.8.html batctl] configuration= | ||
These | These functions change BATMAN-adv configurations through batctl: | ||
* [http://downloads.open-mesh.org/batman/manpages/alfred-gpsd.html alfred-gpsd] - a used to distribute GPS location information about your batman-adv mesh network. This information could be, for example, combined with [http://www.open-mesh.org/projects/batmand/wiki/VisualizeMesh vis] to visualize your mesh topology with true geographic layout. The server fetches the information from locals nodes serving data from [http://manpages.ubuntu.com/manpages/karmic/en/man8/gpsd.8.html gpsd]. | * [http://downloads.open-mesh.org/batman/manpages/alfred-gpsd.html alfred-gpsd] - a used to distribute GPS location information about your batman-adv mesh network. This information could be, for example, combined with [http://www.open-mesh.org/projects/batmand/wiki/VisualizeMesh vis] to visualize your mesh topology with true geographic layout. The server fetches the information from locals nodes serving data from [http://manpages.ubuntu.com/manpages/karmic/en/man8/gpsd.8.html gpsd]. | ||
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= [http://downloads.open-mesh.org/batman/manpages/batmand.8.html batmand] configuration = | = [http://downloads.open-mesh.org/batman/manpages/batmand.8.html batmand] configuration = | ||
There functions | There functions change BATMAN configurations through [http://downloads.open-mesh.org/batman/manpages/batmand.8.html batmand]: | ||
* s (visualization server) - Batman daemons may send their local view about their single-hop neighbors to the vis server. It collects the information and provides data in a format similar to [http://www.olsr.org/ OLSR's topology] information output. | * s (visualization server) - Batman daemons may send their local view about their single-hop neighbors to the vis server. It collects the information and provides data in a format similar to [http://www.olsr.org/ OLSR's topology] information output. | ||
* o (originator interval in ms) - a node transmits broadcast messages (we call them [http://www.open-mesh.org/projects/batman-adv/wiki/OGM originator message or OGM], [http://www.open-mesh.org/projects/batman-adv/wiki/Ogm-v2 version 2]) to inform the neighboring does about it's existence. Originator interval is the time to wait after sending one message and before sending the next message. The default value is 1000 ms (1 second). In a mobile network, you may want to detect network changes very quickly, so you need to send message very often, for example, use a value of 500 ms. In a static network, you can save bandwidth by using a higher value. | * o (originator interval in ms) - a node transmits broadcast messages (we call them [http://www.open-mesh.org/projects/batman-adv/wiki/OGM originator message or OGM], [http://www.open-mesh.org/projects/batman-adv/wiki/Ogm-v2 version 2]) to inform the neighboring does about it's existence. Originator interval is the time to wait after sending one message and before sending the next message. The default value is 1000 ms (1 second). In a mobile network, you may want to detect network changes very quickly, so you need to send message very often, for example, use a value of 500 ms. In a static network, you can save bandwidth by using a higher value. | ||
= configuration | = Configuration files = | ||
== Device configuration == | |||
This configuration is valid for [http://wiki.openwrt.org/about/history OpenWRT 12.09] (Attitude Adjustment), which uses BATMAN 2012.4.0. In newer versions, the version of BATMAN used is 2013.0.0 and the configuration of BATMAN slightly differs. | This configuration is valid for [http://wiki.openwrt.org/about/history OpenWRT 12.09] (Attitude Adjustment), which uses BATMAN 2012.4.0. In newer versions, the version of BATMAN used is 2013.0.0 and the configuration of BATMAN slightly differs. | ||
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Write some of this stuff down for reference later! You might need it! | Write some of this stuff down for reference later! You might need it! | ||
= Network configuration = | == Network configuration == | ||
In /etc/config/network: | In /etc/config/network: | ||
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</pre> | </pre> | ||
= BATMAN configuration = | == BATMAN configuration == | ||
There are [http://www.open-mesh.org/projects/batman-adv/wiki/Tweaking other options], but these are the recommended settings in /etc/config/batman-adv: | |||
<pre> | <pre> | ||
config mesh 'bat0' | config mesh 'bat0' | ||
option interfaces 'adhoc0' # the interface for which to enable batman0 | option interfaces 'adhoc0' # the interface for which to enable batman0 | ||
option 'aggregated_ogms' | option 'aggregated_ogms' | ||
option 'ap_isolation' | option 'ap_isolation' | ||
</pre> | </pre> | ||
= System configuration = | * [http://www.open-mesh.org/projects/batman-adv/wiki/Tweaking aggregated_ogms] - an option that combines the [http://www.open-mesh.org/projects/batman-adv/wiki/OGM originator messages] into a single packet instead of a lot of smaller packets. | ||
* [http://www.open-mesh.org/projects/batman-adv/wiki/Ap-isolation ap_isolation] - an option that prevents any communication between stations connected to the same access point. The clients of the access point won't be able to communicate to each other, which makes it more secure, but less efficient for networking. There's [http://www.open-mesh.org/projects/batman-adv/wiki/Extended-Isolation extended ap isolation], which prevents all the wirelsss-to-wireless traffic and at the same time marks clients as isolated based on the user configuration. | |||
* multicast mode - an option that reduces unnecessary packet transmissions. This optimization announces multicast listeners via the translation table mechanism, thereby signaling interest in certain multicast traffic instead of all of it. If disabled multicast traffic is forwarded to the every node in the network (broadcast). | |||
* [http://www.open-mesh.org/projects/batman-adv/wiki/Understand-your-batman-adv-network routing_algo] - an option to change the routing algorithm. | |||
== System configuration == | |||
In /etc/config/system you can set hostname and timezone. This is not strictly necessary for BATMAN to work, but it should be set correctly. The below timezone is correct for the pacific U.S. timezone. The naming convention for hostnames is: <router-model-name>-<some-unique-name-you-choose> | In /etc/config/system you can set hostname and timezone. This is not strictly necessary for BATMAN to work, but it should be set correctly. The below timezone is correct for the pacific U.S. timezone. The naming convention for hostnames is: <router-model-name>-<some-unique-name-you-choose> | ||