descrs = append(descrs, fmt.Sprintf("Trans: %s", match.TransportProtocol))
	}

	if len(match.ApplicationProtocols) > 0 {
		found := false
		for protDescr, protocols := range protDescrs {
			if reflect.DeepEqual(match.ApplicationProtocols, protocols) {
				found = true
				descrs = append(descrs, protDescr)
				break
			}
		}
		if !found {

## Configuration protocol

Ztunnel, of course, needs to be dynamically configured in order to make decisions on how it should handle traffic.
For this purpose, we chose to use xDS transport protocol due to our expertise and existing infrastructure, and because the protocol is well suited to our needs.

                    "common_tls_context": {
                      "tls_params": {
                        "tls_minimum_protocol_version": "TLSv1_2",
                        "tls_maximum_protocol_version": "TLSv1_3"
                      },
                      "alpn_protocols": [
                        "istio-peer-exchange",
                        "istio"
                      ],

			port: corev1.ServicePort{
				Protocol: corev1.ProtocolTCP,
				Port:     80,
			},
			expectedProtocol: "auto-detect",
		},
		{
			port: corev1.ServicePort{
				Protocol: corev1.ProtocolUDP,
				Port:     80,
			},
			expectedProtocol: "UDP",
		},
	}

	for _, tc := range cases {
		protocol := findProtocolForPort(&tc.port)
		if protocol != tc.expectedProtocol {

				Namespace: ns,
			},
			Spec: gateway.GatewaySpec{
				GatewayClassName: constants.WaypointGatewayClassName,
				Listeners: []gateway.Listener{{
					Name:     "mesh",
					Port:     15008,
					Protocol: gateway.ProtocolType(protocol.HBONE),
				}},
			},
		}

		// only label if the user has provided their own value, otherwise we let istiod choose a default at runtime (service)

    image: "{{ annotation .ObjectMeta `sidecar.istio.io/proxyImage` .Values.global.proxy.image }}"
  {{- else }}
    image: "{{ .ProxyImage }}"
  {{- end }}
    ports:
    - containerPort: 15020
      protocol: TCP
      name: mesh-metrics
    args:
    - proxy
    - sidecar
    - --domain
    - $(POD_NAMESPACE).svc.{{ .Values.global.proxy.clusterDomain }}

		for _, port := range ports {
			p := port.(map[string]any)
			if p["protocol"] != nil && strings.EqualFold(p["protocol"].(string), serviceProtocolUDP) {
				continue
			}
			if ap := p["appProtocol"]; ap != nil {
				if protocol.Parse(ap.(string)).IsUnsupported() {
					errs = multierror.Append(errs, fmt.Errorf("service %q doesn't follow Istio protocol selection. "+

}

// NetworkPolicyPort describes a port to allow traffic on
message NetworkPolicyPort {
  // protocol represents the protocol (TCP, UDP, or SCTP) which traffic must match.
  // If not specified, this field defaults to TCP.
  // +optional
  optional string protocol = 1;

  // port represents the port on the given protocol. This can either be a numerical or named

      serviceAccountName: {{.ServiceAccount | quote}}
      containers:
      - name: istio-proxy
        ports:
        - containerPort: 15021
          name: status-port
          protocol: TCP
        - containerPort: 15090
          protocol: TCP
          name: http-envoy-prom
        {{- if contains "/" (annotation .ObjectMeta `sidecar.istio.io/proxyImage` .Values.global.proxy.image) }}

          ports:
            {{- range $key, $val := $gateway.ports }}
            - containerPort: {{ $val.targetPort | default $val.port }}
              protocol: {{ $val.protocol | default "TCP" }}
            {{- end }}
            - containerPort: 15090
              protocol: TCP
              name: http-envoy-prom
          args:
          - proxy
          - router
          - --domain