Date: Fri, 2 Sep 2016 13:02:03 +0300 From: Slawa Olhovchenkov <slw@zxy.spb.ru> To: Hans Petter Selasky <hps@selasky.org> Cc: freebsd-net@FreeBSD.org, Meny Yossefi <menyy@mellanox.com>, Oded Shanoon <odeds@mellanox.com> Subject: Re: 60G+ network connection Message-ID: <20160902100203.GK88122@zxy.spb.ru> In-Reply-To: <224082ab-95f5-0935-6429-7e7a612f1312@selasky.org> References: <20160901211825.GG88122@zxy.spb.ru> <0fb9979f-d479-f7b1-500e-210ed5316e0f@selasky.org> <20160902093114.GJ88122@zxy.spb.ru> <224082ab-95f5-0935-6429-7e7a612f1312@selasky.org>
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On Fri, Sep 02, 2016 at 11:44:20AM +0200, Hans Petter Selasky wrote: > 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. Ah, I am wrong, see LX limited to 54G. As I see only CX-4 with QSFP28 available, no QSFP+? I think cable QSFP28-QSFP+ don't exist? > > 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. I can do it by if_lagg.
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