Repository : ssh://git@open-mesh.org/doc
On branches: backup-redmine/2017-07-13,master
commit 92702981b9927879af2f8c95443e748cd180c9ad Author: Simon Wunderlich sw@simonwunderlich.de Date: Sun Nov 9 23:19:08 2008 +0000
doc: open-mesh/FFTrace: add fftrace page
92702981b9927879af2f8c95443e748cd180c9ad open-mesh/FFTrace.textile | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)
diff --git a/open-mesh/FFTrace.textile b/open-mesh/FFTrace.textile new file mode 100644 index 00000000..e6e91fbf --- /dev/null +++ b/open-mesh/FFTrace.textile @@ -0,0 +1,21 @@ += FFTrace freifunk-traceroute = + +'''"fftrace"''' is a console-based olsr-route-link-quality monitor + +Problem description: in OLSR mesh networks routing is very dynamic. +Fine tools as traceroute give only a one-time impression, and mtr does not cope with routechanges as often as they happen. Both aim to measure and show the round trip times of packets as quality indicator. +A wireless network consists of many diffrent-quality HF-connections, some with severe packet loss and some with less. +The link-quality implementation of olsrd introduced a value do describe the quality of these connections. +A tool to monitor the current route and the link-quality of its connections was missing. + +'''"fftrace"''' aims to fill this gap. It lists the single nodes of a route and displays the quality of the connections in between. +Finally it shows the needed effort to get a packet through the whole route. + +The program uses ttl-manipulatet icmp-echo-requests to find the intermediate nodes and reads the udp-messages used and generated by the olsr-deamons to gather present information about the link-quality and neighbor-link-quality of node-node-pairs in the watched route. Due to this structure there is no instant information on a new node-node-pair. Until the information is available it is left blank and unregarded by the whole-route-etx. +The code tries to be modular enough to exchange parts if desired, such as the udp-part by +an olsr-plugin or the screen-output in something that can be diplayed graphical e.g. by olsr-viz. (gpl is gpl, be free to do so) + + + + * Download: [http://downloads.open-mesh.org/fftrace/] + * Trac: [https://dev.open-mesh.org/fftrace/] \ No newline at end of file