Method resolve_arp

test/vpp_pg_interface.py:586–620

Resolve ARP using provided packet-generator interface :param pg_interface: interface used to resolve, if None then this interface is used

(self, pg_interface=None)

        )

    def resolve_arp(self, pg_interface=None):
        """Resolve ARP using provided packet-generator interface

        :param pg_interface: interface used to resolve, if None then this
            interface is used

        """
        if pg_interface is None:
            pg_interface = self
        self.test.logger.info(
            "Sending ARP request for %s on port %s"
            % (self.local_ip4, pg_interface.name)
        )
        arp_req = self.create_arp_req()
        pg_interface.add_stream(arp_req)
        pg_interface.enable_capture()
        self.test.pg_start()
        self.test.logger.info(self.test.vapi.cli("show trace"))
        try:
            captured_packet = pg_interface.wait_for_packet(1)
        except CaptureTimeoutError:
            self.test.logger.info("No ARP received on port %s" % pg_interface.name)
            return
        arp_reply = captured_packet.copy()  # keep original for exception
        if ARP not in arp_reply:
            raise UnexpectedPacketError(
                ppp("Unexpected response to ARP request:", captured_packet)
            )
        if arp_reply[ARP].op == getattr(ARP, "is_at", 2):
            self.test.logger.info(
                "VPP %s MAC address is %s " % (self.name, arp_reply[ARP].hwsrc)
            )
            self._local_mac = arp_reply[ARP].hwsrc
        else:
            self.test.logger.info("No ARP received on port %s" % pg_interface.name)

    def resolve_ndp(self, pg_interface=None, timeout=1.0, link_layer=False):
        """Resolve NDP using provided packet-generator interface