int_br
table0(LOCAL_SWITCHING)
egress->table71(BASE_EGRESS_TABLE)
1. arp(arp spoof)->normal
2. udp(dhcp)->table73(ACCEPT_OR_INGRESS_TABLE)
1.dst(local_mac)->table81
2.new->normal
3.normal
3. other(ct)->table72(RULES_EGRESS_TABLE)
match(ct,rule)->normal
ingress->table81(BASE_INGRESS_TABLE)
1. arp(dst_mac)->tap
2. udp(dhcp)->tap
3. other(ct)->table82(RULES_INGRESS_TABLE)
match(ct,rule)->tap
other->normal
================================================================================
phys_brs
table0
1.phy-br-ex(non-dvr)->normal
2.phy-br-ex(dvr)->table1(DVR_PROCESS_VLAN)
3.other->table3(DVR_NOT_LEARN_VLAN)