def large_frame_ping(count=100): logging.info("Large frame ping") s, o = virt_test_utils.ping(ip, count, interface=ifname, packetsize=max_icmp_pkt_size, timeout=float(count) * 2) ratio = virt_test_utils.get_loss_ratio(o) if ratio != 0: raise error.TestFail("Loss ratio of large frame ping is %s" % ratio)
def set_link_test(linkid): """ Issue set_link commands and test its function @param linkid: id of netdev or devices to be tested """ ip = vm.get_address(0) vm.set_link(linkid, up=False) s, o = virt_test_utils.ping(ip, count=10, timeout=20) if virt_test_utils.get_loss_ratio(o) != 100: raise error.TestFail("Still can ping the %s after down %s" % (ip, linkid)) vm.set_link(linkid, up=True) s, o = virt_test_utils.ping(ip, count=10, timeout=20) # we use 100% here as the notification of link status changed may be # delayed in guest driver if virt_test_utils.get_loss_ratio(o) == 100: raise error.TestFail("Packet loss during ping %s after up %s" % (ip, linkid))
def verify_mtu(): logging.info("Verify the path MTU") s, o = virt_test_utils.ping(ip, 10, interface=ifname, packetsize=max_icmp_pkt_size, hint="do", timeout=15) if s != 0 : logging.error(o) raise error.TestFail("Path MTU is not as expected") if virt_test_utils.get_loss_ratio(o) != 0: logging.error(o) raise error.TestFail("Packet loss ratio during MTU " "verification is not zero")
def verify_mtu(): logging.info("Verify the path MTU") s, o = virt_test_utils.ping(ip, 10, interface=ifname, packetsize=max_icmp_pkt_size, hint="do", timeout=15) if s != 0: logging.error(o) raise error.TestFail("Path MTU is not as expected") if virt_test_utils.get_loss_ratio(o) != 0: logging.error(o) raise error.TestFail("Packet loss ratio during MTU " "verification is not zero")
def size_increase_ping(step=random.randrange(90, 110)): logging.info("Size increase ping") for size in range(0, max_icmp_pkt_size + 1, step): logging.info("Ping %s with size %s", ip, size) s, o = virt_test_utils.ping(ip, 1, interface=ifname, packetsize=size, hint="do", timeout=1) if s != 0: s, o = virt_test_utils.ping(ip, 10, interface=ifname, packetsize=size, adaptive=True, hint="do", timeout=20) if virt_test_utils.get_loss_ratio(o) > int(params.get( "fail_ratio", 50)): raise error.TestFail("Ping loss ratio is greater " "than 50% for size %s" % size)
def size_increase_ping(step=random.randrange(90, 110)): logging.info("Size increase ping") for size in range(0, max_icmp_pkt_size + 1, step): logging.info("Ping %s with size %s", ip, size) s, o = virt_test_utils.ping(ip, 1, interface=ifname, packetsize=size, hint="do", timeout=1) if s != 0: s, o = virt_test_utils.ping(ip, 10, interface=ifname, packetsize=size, adaptive=True, hint="do", timeout=20) if virt_test_utils.get_loss_ratio(o) > int( params.get("fail_ratio", 50)): raise error.TestFail("Ping loss ratio is greater " "than 50% for size %s" % size)
def run_ping(test, params, env): """ Ping the guest with different size of packets. Packet Loss Test: 1) Ping the guest with different size/interval of packets. Stress Test: 1) Flood ping the guest. 2) Check if the network is still usable. @param test: KVM test object. @param params: Dictionary with the test parameters. @param env: Dictionary with test environment. """ vm = env.get_vm(params["main_vm"]) vm.verify_alive() session = vm.wait_for_login(timeout=int(params.get("login_timeout", 360))) counts = params.get("ping_counts", 100) flood_minutes = float(params.get("flood_minutes", 10)) nics = vm.virtnet strict_check = params.get("strict_check", "no") == "yes" packet_size = [0, 1, 4, 48, 512, 1440, 1500, 1505, 4054, 4055, 4096, 4192, 8878, 9000, 32767, 65507] try: for i, nic in enumerate(nics): ip = vm.get_address(i) if not ip: logging.error("Could not get the ip of nic index %d: %s", i, nic) continue for size in packet_size: logging.info("Ping with packet size %s", size) status, output = virt_test_utils.ping(ip, 10, packetsize=size, timeout=20) if strict_check: ratio = virt_test_utils.get_loss_ratio(output) if ratio != 0: raise error.TestFail("Loss ratio is %s for packet size" " %s" % (ratio, size)) else: if status != 0: raise error.TestFail("Ping failed, status: %s," " output: %s" % (status, output)) logging.info("Flood ping test") virt_test_utils.ping(ip, None, flood=True, output_func=None, timeout=flood_minutes * 60) logging.info("Final ping test") status, output = virt_test_utils.ping(ip, counts, timeout=float(counts) * 1.5) if strict_check: ratio = virt_test_utils.get_loss_ratio(output) if ratio != 0: raise error.TestFail("Ping failed, status: %s," " output: %s" % (status, output)) else: if status != 0: raise error.TestFail("Ping returns non-zero value %s" % output) finally: session.close()