VLAN BU : SW4 => eth2 => 192.168.8.0/24
VLAN BSDM : SW5, SW6 => eth3 => 192.168.2.0/24
VLAN BKHH : ??? => eth4 => 192.168.3.0/24
VLAN BP : SW7, SW8 => eth5 => 192.168.4.0/24
VLAN INSP : SW2 => eth6 => 192.168.5.0/24
VLAN PPEN : SW9 => eth7 => 192.168.6.0/24
VLAN PIM : SW1, SW3 => eth8 => 192.168.7.0/24
VLAN HOTSPOT : SW-HS => eth10 => 10.10.10.0/24