On Mon, Dec 14, 2015 at 1:21 PM, Hesameddin Alizadeh <(spam-protected)> wrote: > Ok, need to change something on my Topology ! I am not sure I understand what you plan to do. > Is the metric base on PING time between two neighbors? No, olsrd bases its metric on OLSR protocol multicast loss between the nodes. google for "ETX metric". Henning