gistfile1.txt

# vlan tag 78 on bond0
auto sip0
iface sip0 inet manual
  pre-up ip link set up dev bond0 > /dev/null 2>&1 || echo -n ''
  pre-up ip link add name $IFACE link bond0 type vlan protocol 802.1q id 78
  up ip link set up dev $IFACE
  down ip link set down dev $IFACE
  post-down ip link del dev $IFACE

# vlan tag 78 on bond1
auto sip1
iface sip1 inet manual
  pre-up ip link set up dev bond1 > /dev/null 2>&1 || echo -n ''
  pre-up ip link add name ${IFACE} link bond1 type vlan protocol 802.1q id 78
  up ip link set up dev $IFACE
  down ip link set down dev $IFACE
  post-down ip link del dev $IFACE

auto sip
iface sip inet manual
  pre-up ip link add name ${IFACE} type bridge
  pre-up brctl stp ${IFACE} on
  pre-up ifup sip0 > /dev/null 2>&1 || echo -n ''
  pre-up ip link set dev sip0 master ${IFACE}
  pre-up ip link set dev sip1 master ${IFACE}
  pre-up ip addr add 192.168.79.7/24 dev ${IFACE}
  up     ip link set up dev $IFACE
  down      ip link set down dev $IFACE
  post-down ip addr del 192.168.79.7/24 dev ${IFACE}
  post-down ip link set dev sip1 nomaster
  post-down ip link set dev sip0 nomaster
  post-down ip link del dev $IFACE