return nil
		}
		// use the prior configuration bits of sampling and custom tags
		h.Tracing = &hcm.HttpConnectionManager_Tracing{}
		configureSampling(h.Tracing, proxyConfigSamplingValue(proxyCfg))
		configureCustomTags(h.Tracing, map[string]*telemetrypb.Tracing_CustomTag{}, proxyCfg, proxy)
		if proxyCfg.GetTracing().GetMaxPathTagLength() != 0 {
			h.Tracing.MaxPathTagLength = wrapperspb.UInt32(proxyCfg.GetTracing().MaxPathTagLength)
		}