*/
    public boolean isPrimary() {
        return isPrimary;
    }

    /**
     * Set primary channel flag
     *
     * @param primary true if primary
     */
    public void setPrimary(boolean primary) {
        this.isPrimary = primary;
    }

    /**
     * Get number of bytes sent
     *
     * @return bytes sent
     */
    public long getBytesSent() {