return false
	}
	return true
}

func (sim *Simulation) matchRoute(vh *route.VirtualHost, input Call) *route.Route {
	for _, r := range vh.Routes {
		// check path
		switch pt := r.Match.GetPathSpecifier().(type) {
		case *route.RouteMatch_Prefix:
			if !strings.HasPrefix(input.Path, pt.Prefix) {
				continue
			}
		case *route.RouteMatch_PathSeparatedPrefix:

	return &out
}

// GetRouteOperation returns readable route description for trace.
func GetRouteOperation(in *route.Route, vsName string, port int) string {
	path := "/*"
	m := in.GetMatch()
	ps := m.GetPathSpecifier()
	if ps != nil {
		switch ps.(type) {
		case *route.RouteMatch_Prefix:
			path = m.GetPrefix() + "*"
		case *route.RouteMatch_Path:
			path = m.GetPath()
		case *route.RouteMatch_SafeRegex: