[ofa-general] Some problem about the root nodes selection in up/down algorithm

Thu May 14 18:41:38 PDT 2009

In the function "updn_find_root_nodes_by_min_hop(OUT updn_t * p_updn)",
there are two sentences"thd1 = cas_num * 0.9; thd2 = cas_num * 0.05;"
I can't understand what the number "0.9, 0.05" means. Why use the number
"0.9, 0.05"?   What's the principle of this root node selection algorithm ?
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