to := t.Apps.C
	// Validates the config is generated correctly when only idletimeout is specified in DR.
	t.RunTraffic(TrafficTestCase{
		name:   "only idletimeout specified in DR",
		config: idletimeoutDestinationRule("idletimeout-dr", to.Config().Service),
		call:   from[0].CallOrFail,
		opts: echo.CallOptions{
			To: to,
			Port: echo.Port{
				Name: "http",
			},
			Count: 1,
			HTTP: echo.HTTP{