[c-nsp] Nexus 5K FCoE to FC breakout

Tony Varriale tvarriale at comcast.net
Fri Apr 17 16:43:09 EDT 2009


I honestly do not know anyone putting these into 1U systems.  But, part (but 
not all) of the reference is to UCS.

The inital green pitch on the CNA is that the SFP+ draws less power than x2 
or XENPAK.

Every server has to have a FC and *gig NIC.  At this point that's the 
savings along with one card.

The pitch to move from gen 1 to 2 to save another ~10W per card isn't being 
made yet.

Anyways, I believe the original discussion was about speed.

tv

----- Original Message ----- 
From: "Brad Hedlund" <brhedlun at cisco.com>
To: "Tony Varriale" <tvarriale at comcast.net>; <cisco-nsp at puck.nether.net>
Sent: Friday, April 17, 2009 2:52 PM
Subject: Re: [c-nsp] Nexus 5K FCoE to FC breakout


> Not sure what you are specifically referring to but Gen1 C-N-A's are based
> on 3 chip's (1) Eth, (1) FC, (1) DCE "Menlo".
> As a result, Gen1 cards are long and do not fit in most 1RU systems.  The
> power draw of the 3 chip design is around 21W.
> Gen2 C-N-A's combine the functionality of all three chips into 1 custom
> ASIC.  As a result Gen2's will fit in 1RU systems and power draw is in the
> low teens.  Lots of buzz about this can be found on Emulex and Qlogic
> websites.
>
> The Emulex and Qlogic mezz C-N-A's initially available for Cisco UCS are
> based on the Gen1 design.  Maybe that is what you are referring to?
>
> Cheers,
>
> Brad Hedlund
> bhedlund at cisco.com
> http://www.internetworkexpert.org
>
>
> On 4/17/09 2:27 PM, "Tony Varriale" <tvarriale at comcast.net> wrote:
>
>> Gen 1 already offers this. :)
>>
>> tv
>
> 



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