'Notify L3 agents of ARP table entry for dvr service port.
When a dvr service port goes up, look for the DVR router on
the port\'s subnet, and send the ARP details to all
L3 agents hosting the router to add it.
If there are any allowed_address_pairs associated with the port
those fixed_ips should also be updated in the ARP table.'

def update_arp_entry_for_dvr_service_port(self, context, port_dict):

    fixed_ips = port_dict['fixed_ips']
    if (not fixed_ips):
        return
    allowed_address_pair_fixed_ips = self._get_allowed_address_pair_fixed_ips(context, port_dict)
    changed_fixed_ips = (fixed_ips + allowed_address_pair_fixed_ips)
    for fixed_ip in changed_fixed_ips:
        self._generate_arp_table_and_notify_agent(context, fixed_ip, port_dict['mac_address'], self.l3_rpc_notifier.add_arp_entry)
