func TestServerTracing(t *testing.T) {
	framework.NewTest(t).
		Run(func(t framework.TestContext) {
			appNsInst := tracing.GetAppNamespace()
			for _, cluster := range t.Clusters().ByNetwork()[t.Clusters().Default().NetworkName()] {
				t.NewSubTest(cluster.StableName()).Run(func(t framework.TestContext) {
					retry.UntilSuccessOrFail(t, func() error {
						err := tracing.SendTraffic(t, nil, cluster)
						if err != nil {

	// not support dual-stack.
	ipv4Supported = true
	ipv6Supported = true

	compatTester := winkernel.DualStackCompatTester{}
	dualStackSupported = compatTester.DualStackCompatible(s.Config.Winkernel.NetworkName)

	return
}

// createProxier creates the proxy.Provider
func (s *ProxyServer) createProxier(ctx context.Context, config *proxyconfigapi.KubeProxyConfiguration, dualStackMode, initOnly bool) (proxy.Provider, error) {

		return false
	}

	// check if network is using overlay
	hns, _ := newHostNetworkService(hcnImpl)
	networkName, err := getNetworkName(networkName)
	if err != nil {
		klog.ErrorS(err, "Unable to determine dual-stack status, falling back to single-stack")
		return false
	}
	networkInfo, err := getNetworkInfo(hns, networkName)
	if err != nil {
		klog.ErrorS(err, "Unable to determine dual-stack status, falling back to single-stack")

						// TODO fix tracing tests in multi-network https://github.com/istio/istio/issues/28890
						for _, cluster := range ctx.Clusters().ByNetwork()[ctx.Clusters().Default().NetworkName()] {
							cluster := cluster
							ctx.NewSubTest(cluster.StableName()).Run(func(ctx framework.TestContext) {
								retry.UntilSuccessOrFail(ctx, func() error {
									err := tracing.SendTraffic(ctx, nil, cluster)

		return c.Name() == i.Config().Cluster.Name()
	}
}

// Network matches instances deployed in the given network.
func Network(n string) Matcher {
	return func(i echo.Instance) bool {
		return i.Config().Cluster.NetworkName() == n
	}
}

// VM matches instances with DeployAsVM
var VM Matcher = func(i echo.Instance) bool {
	return i.Config().IsVM()
}

// NotVM is matches against instances that are NOT VMs.

}

// KubeProxyWinkernelConfiguration contains Windows/HNS settings for
// the Kubernetes proxy server.
type KubeProxyWinkernelConfiguration struct {
	// networkName is the name of the network kube-proxy will use
	// to create endpoints and policies
	NetworkName string
	// sourceVip is the IP address of the source VIP endpoint used for
	// NAT when loadbalancing
	SourceVip string

			"values.global.variant=" + ctx.Settings().Image.Variant,
		},
	}

	if ctx.Environment().IsMultiNetwork() && c.NetworkName() != "" {
		args.AppendSet("values.global.meshID", meshID)
		args.AppendSet("values.global.network", c.NetworkName())
	}

	// Include all user-specified values and configuration options.
	if cfg.EnableCNI {
		args.AppendSet("components.cni.enabled", "true")
	}

}

// Reconcile reconciles the associated resources.
func (h *HelmReconciler) Reconcile() (*v1alpha1.InstallStatus, error) {
	if err := util.CreateNamespace(h.kubeClient.Kube(), istioV1Alpha1.Namespace(h.iop.Spec), h.networkName(), h.opts.DryRun); err != nil {
		return nil, err
	}
	manifestMap, err := h.RenderCharts()
	if err != nil {
		return nil, err
	}

	err = h.analyzeWebhooks(manifestMap[name.PilotComponentName])

			d.cfg.Service,
			err)
	}
}

func (d *deployment) workloadEntryYAML(w *workload) string {
	name := w.pod.Name
	podIP := w.pod.Status.PodIP
	sa := serviceAccount(d.cfg)
	network := d.cfg.Cluster.NetworkName()
	service := d.cfg.Service
	version := w.pod.Labels[constants.TestVMVersionLabel]

	return fmt.Sprintf(`
apiVersion: networking.istio.io/v1alpha3
kind: WorkloadEntry
metadata:
  name: %s
spec:

											}
										} else if c.expectCrossCluster(from, opts) {
											// Expect to stay in the same network as the source pod.
											expectedClusters := to.Clusters().ForNetworks(from.Config().Cluster.NetworkName())
											if !check.IsDNSCaptureEnabled(t) && opts.To.Config().Headless {
												opts.Check = check.And(opts.Check, check.ReachedSourceCluster(t.Clusters()))
											} else {