Nokeena Networks is announcing this morning that it has raised $6.5M from Mayfield Fund, bringing its total funding to $15M. The new funding will be used primarily for marketing and sales. Nokeena's Media Flow Director is a software appliance that combines storage, caching and network optimization to deliver high-quality video at lower cost. I noted Nokeena in my recent post about the robust ecosystem of technology companies enabling higher-quality broadband video delivery.