Re: Stack Huawei S5700-52X-PWR-LI-AC
I think you should contact Huawei on this question....
View Article40000LR not being advertised
I'm experiencing some difficulties in getting 40g LR optics to work with my Connectx-3 card.Relevent diagnostics: /etc/redhat-release:CentOS Linux release 7.1.1503 (Core) uname -a: Linux x.x.x.x...
View ArticleRe: Frequent TCP retransmissions with ConnectX-3 EN
Traffic is exchange market data (mcast) and orders (tcp/ip sockets). Not really observing any mcast drops -- just the retransmits. Nothing reported by ethtool as far as drops or errors: $ ethtool -S...
View ArticleRe: unable to create QP with IBV_EXP_QPT_DC_INI
Hi Sam, DCT is only possible with mlx5 architecture, so only Connect-IB or ConnectX-4 Regards,Erez
View ArticleRe: Frequent TCP retransmissions with ConnectX-3 EN
Thanks, So you're saying a retransmit is not observed specifically when you're bursting traffic, but it is more random on normal load? What flow steering mode are you using ? you can check dmesg when...
View ArticleRe: Direct connect two windows machines with CX314A and passive copper cable
I just wanted to post here so that anyone who was reading my issue above would have the information. My only problem was that I was trying to use a VPI copper cable instead of the 40Gb ethernet copper...
View ArticleRe: HCA extended port counters
Yes exactly. There seems to be hardware and OFED version dependency whether the PortExtendedCounters attribute is exposed. I haven't discovered the pattern yet. Sometimes "perfquery --extended" will...
View ArticleRe: HCA extended port counters
At least in upstream kernel, I only see mandatory PortCounters support in /sys/class/infiniband but didn't chase every HCA driver to see if they augment this. Which HCA(s) and which OFED or MOFED are...
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Re: Problem configuring and using IPoIB
Does flex boot cause issues with trying to use IB normally? ibdiagnet seems to indicate errors in the FW but the most recent FW I found on the mlnx site is 2.9.100, and that is what my cards say they...
View ArticleConfiguration of ConnectX-3 to work with Virtualbox
I have a dual port ConnectX-3 installed in a Dell R620 server running the followingCentos 6.6mlnx driver 2.4.1.0.0.1Virtualbox 4.3.28Guest OS also Centos 6.6Bridged network adapter pointing to p1p1...
View ArticleRe: Frequent TCP retransmissions with ConnectX-3 EN
> Thanks, So you're saying a retransmit is not observed specifically when you're bursting traffic, but it is more random on normal load? Yes seem like just a normal load. > What flow steering...
View ArticleWindows 8.1 workaround for direct connection?
I am trying to set up an Infiniband link between an Asus esc4000fdrg2 server running Windows Server 2008 R2, and a workstation running Windows 8.1. The server has a built-in Infiniband FDR port. I...
View ArticleRe: Frequent TCP retransmissions with ConnectX-3 EN
Hi Bud, Assuming you're using OFED 2.4 - Can you copy paste dmesg output when the low lever driver loads (mlx4_core) ? and you can also try optimizing the flow steering mode - just create a mlnx.conf...
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Re: Windows 8.1 workaround for direct connection?
There seems to be a driver that might be able to work with 8.1 client : http://www.mellanox.com/downloads/WinOF/MLNX_VPI_WinOF-4_95_All_win2012R2_x64.exe I would go through the archives and install an...
View ArticleRe: How do I load the MLNX_OFED_LINUX driver into Debian 6.0.10?
did you find any answer?
View ArticleRe: Configuration of ConnectX-3 to work with Virtualbox
Hi, if you're using IP forwarding you might want to disable LRO on the interfaces, seems like the kernel is pointing to a bad packet flow because of it. ethtool -K <ethx> lro off Please try and...
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Re: How do I load the MLNX_OFED_LINUX driver into Debian 6.0.10?
As far as I'm aware of there's no official package for Debian 6.0.10, so your best bet is to see if the package for 6.0.9 driver is able to compile using DKMS which is supported in these distributions.
View ArticleIs there a way to downgrade 40GE Adapter to 10GE?
Hi, I am working on following configuration: Mellanox Adapter: ConnectX-3 Pro FDR InfiniBand + 40 GigE (MX354A-FCCT) Mellanox Switch: SX1012 Mellanox Fibre Optic Cable: MC220731V-010(Upto 56Gb/s)...
View ArticleRe: Is there a way to downgrade 40GE Adapter to 10GE?
Hi Komal, You can change the switch port speed to 10G with: switch(config)# interface ethernet 1/x speed 10000 force
View ArticleRe: Is there a way to downgrade 40GE Adapter to 10GE?
Hi Eddie, Thanks for the reply.Any change required on adapter side as well?And can I use same cable(upto 56Gbps)?
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