On 11/2/11, Alexander Smirnov <alex.bluesman.smir...@gmail.com> wrote: > This patch adds chapter to documentation which describes how to use > 6lowpan technology. > > Signed-off-by: Alexander Smirnov <alex.bluesman.smir...@gmail.com> > --- > Documentation/networking/ieee802154.txt | 26 ++++++++++++++++++++++++++ > 1 files changed, 26 insertions(+), 0 deletions(-) > > diff --git a/Documentation/networking/ieee802154.txt > b/Documentation/networking/ieee802154.txt > index 23c995e..7d50b26 100644 > --- a/Documentation/networking/ieee802154.txt > +++ b/Documentation/networking/ieee802154.txt > @@ -78,3 +78,29 @@ in software. This is currently WIP. > > See header include/net/mac802154.h and several drivers in > drivers/ieee802154/. > > +6LoWPAN Linux implementation > +============================ > + > +The IEEE 802.15.4 standard specifies an MTU of 128 bytes, yielding about 80 > +octets of actual MAC payload once security is turned on, on a wireless link > +with a link throughput of 250 kbps or less. The 6LoWPAN adaptation format > +[RFC4944] was specified to carry IPv6 datagrams over such constrained > links, > +taking into account limited bandwidth, memory, or energy resources that are > +expected in applications such as wireless Sensor Networks. [RFC4944] > defines > +a Mesh Addressing header to support sub-IP forwarding, a Fragmentation > header > +to support the IPv6 minimum MTU requirement [RFC2460], and stateless header > +compression for IPv6 datagrams (LOWPAN_HC1 and LOWPAN_HC2) to reduce the > +relatively large IPv6 and UDP headers down to (in the best case) several > bytes.
It might be a good idea to mention fresh RFC 6282, to note that it updates RFC 4944, deprecating old compression schemes and adding a new one. Then you can add a note that following RFC 6282 6lowpan code doesn't implement compression via HC1 and HC2 schemes (it doesn't, am I right?). > + > +All the code related to 6lowpan you may find in files: > net/ieee802154/6lowpan.* > + > +To setup 6lowpan interface you need: > +1. Add IEEE802.15.4 interface and initialize PANid; > +2. Add 6lowpan interface by command like: > + # ip link add link wpan0 name lowpan0 type lowpan Does this work with busybox ip or only with iproute2? > +3. Set MAC (if needs): > + # ip link set lowpan0 address de:ad:be:ef:ca:fe:ba:be IIRC address can be also specified at the step 2. > +4. Bring up 'lowpan0' interface -- With best wishes Dmitry ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Linux-zigbee-devel mailing list Linux-zigbee-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-zigbee-devel
