table_set_default ipv4_lpm drop
table_set_default swtrace add_swtrace 3
table_add ipv4_lpm ipv4_forward 10.0.3.3/32  => 00:00:00:00:03:01 1
table_add ipv4_lpm ipv4_forward 10.0.1.0/24 => 00:00:00:01:04:00 2
table_add ipv4_lpm ipv4_forward 10.0.2.0/24 => 00:00:00:02:04:00 3