Is 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)?
View ArticleRe: Is there a way to downgrade 40GE Adapter to 10GE?
Hi Komal, no change is needed from the adapter side.As for the cable, AFAIK it should work with 10GbE as well
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Re: Problem configuring and using IPoIB
Hi Trevor, are you still experiencing issues with IPoIB?if yes - can you please provide the opensm configuration file you are using (if exists) and the opensm command line you used in order to start...
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Re: Problem configuring and using IPoIB
yes, I am still having this problem. Although at this point I believe my IPoIB config is correct and it seems to be a firmware issue. my opensm folder in /etc is empty so it looks like I do not have an...
View ArticleRe: Configuration of ConnectX-3 to work with Virtualbox
Found a similar comment on Google, but the recommended ethtool -K <ethx> gro off. That did not work, so went through and turned off all offloading in the driver, used ethtool with the...
View ArticleRe: Frequent TCP retransmissions with ConnectX-3 EN
> FC = Flow control, assuming it is enabled on the NIC (ethtool -a ethX) it is needed also to be enabled on every switch port on your Arista. Got it. It is enabled on the NIC $ ethtool -a p6p1...
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Problems with ConnectX2(rev:b0)
I have a Mellanox ConnextX2 ethernet adapter and I having some issues receiving packets on it. I am sending simple layer 2 vlan tagged packets. I can see the packets were sent on the wire to the...
View ArticleRe: Frequent TCP retransmissions with ConnectX-3 EN
Erez, In looking at the VMA github repo Commits · Mellanox/libvma · GitHub it seems like there has been some work with ack timers and retransmits between VMA 6.8.3 (which ships with OFED 2.4) and VMA...
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FreeBSD 10.1 ib0 does not bring link up at boot
I have a strange issue. I've set ib mode on FreeBSD driver 2.1.6 (same behavior on 2.1.5), and set ip for ib0. The issue that i'm facing is that after a reboot, i need to do ifconfig ib0 down...
View ArticleNo DHCP lease on boot
Using a ConnectX-3 with an 10Gb Ethernet port I installed Debian 8 (jessie). Booting is fine until I install the Mellanox OFED stack (3.0-1.0.1), at which point I no longer get a DHCP lease at boot....
View ArticleRe: MLNX_OFED install failed at Ubuntu 14.04.2
Just an FYI, MLNX_OFED_LINUX-3.0-1.0.1-ubuntu14.04-x86_64 seems to work fine with Ubuntu 14.04.2. -- Bud
View ArticleI have windows 2012R2 OS on Dell R710.When i connect mellanox nics and cables...
I have windows 2012R2 OS on Dell R710.When i connect mellanox nics and cables through a Dell switch with 40G ports, It shows network cable unplugged.
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flexboot versions?
Hello all, I am trying to install flexboot on two HT26428's. The most recent version of flexboot I can install for my FW version is 3.4.124, but there seem to be 3 different versions (VPI, ethernet,...
View ArticleRe: I have windows 2012R2 OS on Dell R710.When i connect mellanox nics and...
If you're running things in Infiniband mode, is there a subnet manager running on the network? This kind of sounds like what happens when you run without a subnet manager. If you're not sure, try...
View ArticleRe: I have windows 2012R2 OS on Dell R710.When i connect mellanox nics and...
He is saying Dell switch, I don't think that it is InfiniBand. Few questions:Did you install WinOF driver? Could you make sure that the port is configured with Ethernet (if this is the case)?Try to...
View ArticleFDR with unmanaged switch
I have been trying to set up a new cluster using an 18 port MSX6015 switch and 9 systems with connectx-3 cards/built in IB:08:00.0 Network controller: Mellanox Technologies MT27500 Family...
View ArticleRe: I have windows 2012R2 OS on Dell R710.When i connect mellanox nics and...
First, I would make sure you are using supported adapters, cables, and SFPs for both the Mellanox cards and the Dell switch. There are known issues when mixing certain types of SFPs and cables, and...
View ArticleMellanox OFED 3.0 failed to build in sles12
Build warnings/errors in sles12 happened in %install.Are these problems known? Already a patch available?Mlnx-ofa_kernel 3.0 was built fine in sles11sp3. 1)extracting debug info from...
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