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| author |   Linus Luessing <linus.luessing@web.de> | 2016-01-16 16:40:09 +0800 |
|---|---|---|
| committer |   Antonio Quartulli <a@unstable.cc> | 2016-02-29 16:05:29 +0800 |
| commit | d6f94d91f766b4205e5b0aa4b11f96271c793f6d (patch) | |
| tree | 8055ce7a0337ab262af4522f9a20ab11b4769239 /net/batman-adv/Kconfig | |
| parent | batman-adv: Add hard_iface specific sysfs wrapper macros for UINT (diff) | |
| download | linux-dev-d6f94d91f766b4205e5b0aa4b11f96271c793f6d.tar.xz linux-dev-d6f94d91f766b4205e5b0aa4b11f96271c793f6d.zip | |
batman-adv: ELP - adding basic infrastructure
The B.A.T.M.A.N. protocol originally only used a single
message type (called OGM) to determine the link qualities to
the direct neighbors and spreading these link quality
information through the whole mesh. This procedure is
summarized on the BATMAN concept page and explained in
details in the RFC draft published in 2008.
This approach was chosen for its simplicity during the
protocol design phase and the implementation. However, it
also bears some drawbacks:
* Wireless interfaces usually come with some packet loss,
therefore a higher broadcast rate is desirable to allow
a fast reaction on flaky connections.
Other interfaces of the same host might be connected to
Ethernet LANs / VPNs / etc which rarely exhibit packet
loss would benefit from a lower broadcast rate to reduce
overhead.
* It generally is more desirable to detect local link
quality changes at a faster rate than propagating all
these changes through the entire mesh (the far end of
the mesh does not need to care about local link quality
changes that much). Other optimizations strategies, like
reducing overhead, might be possible if OGMs weren't
used for all tasks in the mesh at the same time.
As a result detecting local link qualities shall be handled
by an independent message type, ELP, whereas the OGM message
type remains responsible for flooding the mesh with these
link quality information and determining the overall path
transmit qualities.
Developed by Linus during a 6 months trainee study period in
Ascom (Switzerland) AG.
Signed-off-by: Linus Luessing <linus.luessing@web.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Diffstat (limited to 'net/batman-adv/Kconfig')
| -rw-r--r-- | net/batman-adv/Kconfig | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/net/batman-adv/Kconfig b/net/batman-adv/Kconfig index 2dd40e5ea030..5c148a8489da 100644 --- a/net/batman-adv/Kconfig +++ b/net/batman-adv/Kconfig @@ -15,6 +15,20 @@ config BATMAN_ADV https://www.open-mesh.org/ for more information and user space tools. +config BATMAN_ADV_BATMAN_V + bool "B.A.T.M.A.N. V protocol (experimental)" + depends on BATMAN_ADV + default n + help + This option enables the B.A.T.M.A.N. V protocol, the successor + of the currently used B.A.T.M.A.N. IV protocol. The main + changes include splitting of the OGM protocol into a neighbor + discovery protocol (Echo Location Protocol, ELP) and a new OGM + Protocol OGMv2 for flooding protocol information through the + network, as well as a throughput based metric. + B.A.T.M.A.N. V is currently considered experimental and not + compatible to B.A.T.M.A.N. IV networks. + config BATMAN_ADV_BLA bool "Bridge Loop Avoidance" depends on BATMAN_ADV && INET |