[olsr-dev] OLSR Basic Multicast Forwarding (BMF) plugin v1.4 released

[Erik Tromp]

Hi all,

A new version of the OLSR Basic Multicast Forwarding (BMF) plug-in is available.

Here is the change log with respect to the previous version:

* Optimized the standard forwarding mechanism in such a way that retransmissions
of packets are only done on those network interfaces that make a host a
multi-point relay (MPR) for the sender. I.e.: retransmitting a packet on a
network interface is not done if that does not lead to any new hosts being
reached.
* Optimized the standard forwarding mechanism such that, if the network topology
indicates there is only one neighbor on an interface, packets are sent to the
specific IP address (unicast) of that neighbor. If the network topology
indicates there are multiple neighbors, then BMF will still send packets to the
IP local-broadcast address.
* Introduced a new forwarding mechanism, using only IP-unicast to forward
packets. Packets are forwarded to the best candidate neighbor; other neighbors
listen promiscuously. IP-local broadcast is not used. This saves air time on
802.11 WLAN networks, on which unicast packets are usually sent at a much higher
bit rate than broadcast packets (which are sent at a basic bit rate).

As always, the source package can be downloaded at:

http://sourceforge.net/projects/olsr-bmf

Have fun with it!

Erik