'Get existing config'

def get_existing(self):

    self.existing = dict(bridge_domain_id=self.bridge_domain_id, evpn=self.evpn_info['evpn_inst'], route_distinguisher=self.evpn_info['route_distinguisher'], vpn_target_both=self.evpn_info['vpn_target_both'], vpn_target_import=self.evpn_info['vpn_target_import'], vpn_target_export=self.evpn_info['vpn_target_export'])
