[illumin8]

Thanks, but my guess is that it's actually a bonded 2x 10Gbps link, which would also give you 20gbps, and cost a lot less per port.

[netguy6]

With current per port costs and economics, that doesn't make much sense. The $/Gbps/Watt improves with every spin of the chip, and every increase in serdes bandwidth.

10GbE (64x10G) - ~$4,500, $70/port

10GbE (32x40G) - ~$6,000, $50/port

25GbE (72x25G) - ~$7,000, $100/port (Seen as low as $5k)

25GbE (32x100G) - ~$9,000, $75/port (Seen as low as $7k)

2x 10GbE = $100

1x 25GbE = $75

Not to mention the extra cabling costs, and complexity.

[wmf]

I'm seeing 25G at the same price as 10G, but I'm not using Amazonomics.