'Start Linux bridge'

def start(self, _controllers):

    self.cmd('ifconfig', self, 'down')
    self.cmd('brctl    delbr', self)
    self.cmd('brctl    addbr', self)
    if self.stp:
        self.cmd('brctl    setbridgeprio', self.prio)
        self.cmd('brctl    stp', self, 'on')
    for i in self.intfList():
        if (self.name in i.name):
            self.cmd('brctl    addif', self, i)
    self.cmd('ifconfig', self, 'up')
