NeutronL3Agent之LegacyRouter.md

Neutron L3 Agent 之 LegacyRouter

neutron/agent/l3/legacy_router.py

class LegacyRouter(router.RouterInfo)

def add_floating_ip(self, fip, interface_name, device)

    def add_floating_ip(self, fip, interface_name, device):
        if not self._add_fip_addr_to_device(fip, device):
            return lib_constants.FLOATINGIP_STATUS_ERROR

        # As GARP is processed in a distinct thread the call below
        # won't raise an exception to be handled.
        ip_lib.send_ip_addr_adv_notif(self.ns_name,
                                      interface_name,
                                      fip['floating_ip_address'],
                                      self.agent_conf)
        return lib_constants.FLOATINGIP_STATUS_ACTIVE

调用 _add_fip_addr_to_device 来将 floating ip 添加到 device 上 若失败，则返回 FLOATINGIP_STATUS_ERROR 若成功，则调用 send_ip_addr_adv_notif 发送 arp 通知