for _, l := range listeners {
		if port == l.Address.GetSocketAddress().GetPortValue() {
			return true
		}
		for _, fc := range l.GetFilterChains() {
			if fc.GetFilterChainMatch().GetDestinationPort().GetValue() == port {
				return true
			}
		}
	}

	return false
}

func findListenerByPort(listeners []*listener.Listener, port uint32) *listener.Listener {