if http2ProtocolOptions != nil && maxConcurrentStreams > 0 {
			http2ProtocolOptions.MaxConcurrentStreams = &wrapperspb.UInt32Value{Value: maxConcurrentStreams}
		}
	}
	if settings.Http != nil && settings.Http.UseClientProtocol {
		// Use downstream protocol. If the incoming traffic use HTTP 1.1, the
		// upstream cluster will use HTTP 1.1, if incoming traffic use HTTP2,
		// the upstream cluster will use HTTP2.

	// concern for plaintext, but we do not have a way to distinguish https vs http here. If users of
	// gateway want this behavior, they can configure UseClientProtocol explicitly.
	if cb.sidecarProxy() && port.Protocol.IsUnsupported() {
		// Use downstream protocol. If the incoming traffic use HTTP 1.1, the
		// upstream cluster will use HTTP 1.1, if incoming traffic use HTTP2,