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Subject: Re: 60G+ network connection
To: Slawa Olhovchenkov <slw@zxy.spb.ru>
References: <20160901211825.GG88122@zxy.spb.ru>
 <0fb9979f-d479-f7b1-500e-210ed5316e0f@selasky.org>
 <20160902093114.GJ88122@zxy.spb.ru>
Cc: freebsd-net@FreeBSD.org, Meny Yossefi <menyy@mellanox.com>,
 Oded Shanoon <odeds@mellanox.com>
From: Hans Petter Selasky <hps@selasky.org>
Message-ID: <224082ab-95f5-0935-6429-7e7a612f1312@selasky.org>
Date: Fri, 2 Sep 2016 11:44:20 +0200
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On 09/02/16 11:31, Slawa Olhovchenkov wrote:
> On Fri, Sep 02, 2016 at 09:37:25AM +0200, Hans Petter Selasky wrote:
>
>> On 09/01/16 23:18, Slawa Olhovchenkov wrote:
>>> What hardware (NIC) recomended for 60G+ network speed?
>>>
>>> Chelsio limited to 54Gbit/s
>>> Melanox don't available new drivers for ConnectX-5 and need too
>>> expensive transmiters and connectivity.
>>> Melanox don't available new drivers for ConnectX-4 Lx and also limited
>>> to 54Gbit/s
>>> Intel XL710 also limited to 54Gbit/s
>>>
>>> What I am miss?
>>
>> Hi,
>>
>> Mellanox has drivers in sys/dev/mlx5 for CX-4 which support 100GBit/s
>> speeds.
>
> can you some clarification?
> what relation between cx-4 and ConnectX®-4 Lx EN?

Hi,

The LX series has lower throughput and is cheaper. You'll need the 
regular CX-4 if you want to do 100GBit/s. Meny, correct me if I'm wrong.

> Is the same?
>
> PS: 100G transmiters and connectiveti too expensive, 2x40G prefer.

You can put 2x 40GBit/s modules in the CX-4. I'm not sure if you can 
combine 2x 40GBit/s into a single 80GBit/s.

--HPS