EP：

1  . config ip address
host-eth1 (up)

10.1.2.60/24

2  . config route

10.0.0.0/8

10.1.X.X—will lookup fail in mtrie（example 10.1.1.1）
X-any

when add 10.0.0.0/8 in func "set_root_leaf" will recurse on down the trie,

and come into func "set_leaf",     a->dst_address_length is 8, old_ply->dst_address_bits_of_leaves[i] is 16,  can't  update corret adj_index to leaf.