public int getSelectedVersion() {
        return selectedVersion;
    }

    /**
     * Set selected protocol version
     *
     * @param selectedVersion selected version
     */
    public void setSelectedVersion(int selectedVersion) {
        this.selectedVersion = selectedVersion;
    }

    /**
     * Get number of credits granted
     *
     * @return credits granted
     */

        // For TCP fallback, we simulate successful negotiation
        RdmaNegotiateResponse response = new RdmaNegotiateResponse();
        response.setStatus(0); // Success
        response.setSelectedVersion(request.getMaxVersion());
        response.setCreditsGranted(request.getCreditsRequested());
        response.setMaxReceiveSize(Math.min(request.getMaxReceiveSize(), 65536));

        // Simulate successful negotiation for skeleton implementation
        RdmaNegotiateResponse response = new RdmaNegotiateResponse();
        response.setStatus(0); // Success
        response.setSelectedVersion(request.getMaxVersion());
        response.setCreditsGranted(request.getCreditsRequested());
        response.setMaxReceiveSize(request.getMaxReceiveSize());