Hi there ASR 9000 and CRS-3 as far as I am concerned. That would be in Cisco World. There are other brands. Take a look at this: http://en.wikipedia.org/wiki/100_Gigabit_Ethernet On 09/27/2012 04:27 PM, Deric Kwok wrote: Hi all Do you have experience in 40G equipments eg: switch and NIC? Any brand name is reliable Thank you so much

On Sep 27, 2012, at 3:30 PM, Deric Kwok <deric.kwok2000@gmail.com> wrote:

Hi all

Do you have experience in 40G equipments

eg: switch and NIC? Infiniband or Ethernet?

Mellanox CX3 is likely your only choice today for a reliable 40Gbe.

Any brand name is reliable

Thank you so much

Hi Deric, On the part of 40G, there is a clear financial benefit instead of moving currently towards 100G. If you don't need 100G yet, there is a lot of money to be saved by skipping first generation 100G. 40G ports will only set you back around 1500 US$ per port. Optics are also quite cheap and because of that, it is a nice solution. As already mentioned by Adam in his reply. Extreme Networks has a device (the BD X8) that can fit 192 - 40G ports in 14.5U (or 1/3) rack space. These can also be used as 768 10G ports, if you split the 40G into 4*10G. Which you can by just putting other cabling to the optic. If you don't require such a large quantity of ports, there are also smaller (1U switches) with have 4*40G option boards, like the X670V from Extreme. These boxes are not expensive, stable and provide a great price to port density ratio. Also something which is very interesting, these boxes have both a very low latency, which makes them ideal for storage, cloud and trading scenarios. There are some tests reports you can find online if you are not only looking for 40G but specifically in combination with very low latency. I personally haven't used the Mellanox 40G nics yet, but I have been told that these have been tested by other customers and work like a charm with the Extreme kit. If you have more specific questions, please let me know (can also off-list). Regards, Erik Bais