def get_physical_network(self):
    phy_network = self['network']['meta'].get('physical_network')
    if (not phy_network):
        phy_network = self['details'].get(VIF_DETAILS_PHYSICAL_NETWORK)
    return phy_network
def get_physical_network(self):
    phy_network = self['network']['meta'].get('physical_network')
    if (not phy_network):
        phy_network = self['details'].get(VIF_DETAILS_PHYSICAL_NETWORK)
    return phy_network