Re: infiniscale iv switch howto set mtu_cap ?
If the hosts are using 2K mtu there is no harm of 4k mtu on the links between the switches.
View ArticleIs there a reference implementation for direct NIC-to-GPU data transfer?
Many of the material on utilizing GPUDirect RDMA with high-speed NICs on Mellanox and NVIDIA websites seem geared towards distributed computing applications using MPI where a GPU on one machine needs...
View ArticleRe: infiniscale iv switch howto set mtu_cap ?
Actually we have the opposite, our hosts come up as 4k mtu but the inter-switch links are 2k mtu.If we set the infiniscale switch ports to 2k mtu, we hope the attached hosts will negotiation at 2k mtu.
View ArticleUse MTPB23108 with Windows server 2012 R2 as NIC
Could I use two MTPB23108 with Windows server 2012 R2 to connect two servers to each other? And could I set up MTPB23108 to work as NIC in OS? Thanks!
View ArticleRe: IS5022 Switch Fabric
Hi Steve,The topology looks fine.Since you have IS5022 switches they are "unmanaged" and are not capable of running an SM (subnet manager) so the other step you would need to take is to start opensm on...
View ArticleRe: basic inter-vlan routing
Hi I think you will need to create ACL's and apply the ACL's to the subinterfaces
View ArticleRe: ibdump for Windows
Hello Aleksey, Can you please try to run it as 'ibdump -d mlx4_0 -i <port> -o <output file>' and let me know if it works?Also please run 'vstat' and 'ibstat' and share the output....
View ArticleRe: ibdump for Windows
Hello Einav, Thanks for advise. But I'm afraid it does not work.cmd was opened with admin privileges, output was like: c:\Program Files\Mellanox\MLNX_VPI\IB\Tools>ibdump.exe -d mlx4_0 -i 1 -o...
View ArticleConnect-X adapter fails to receive invalid IPv6 frame
Hello, I am using two Ethernet adapter cards (ConnectX-3 40G), on an Ubuntu system. I have noticed that certain Ethernet frames are not received by the cards, but are received fine by other Ethernet...
View ArticleConnect 2* HP switch with 2*Mellanox
Hi, I have 2 * Mallanox Switch SX1012 configured with MLAG. Is it possible connect 2 * ME SX1012 and 2 * HP 2910 Switch with RSTP like on the picture?Thanks--------------...
View ArticleRe: Connect 2* HP switch with 2*Mellanox
Can you explain what are you trying to do?Why don't you use MLAG configured on the SX1012 for example? Closing a loop between the switches will cause the RSTP to block one of the ports. se-rulez...
View ArticleRe: Connect 2* HP switch with 2*Mellanox
We expect MLAG connectivity to be replicate what it would like if both the switches were one. So, we need the links in between the SX1012 and the HP switch. Once you have MLAG, RSTP is not required as...
View ArticleRe: ibdump for Windows
Hello Aleksey, Thank you for the info, seems like you are running the ibdump on a VM. I would run in on the host rather then on the VM.Currently it is not supported and not planned to be implemented in...
View ArticleRe: Is it possible to setup both SR-IOV-IB and Non-SR-IOV-Ethernet within 1 VM?
Hello Mikyung, Currently this setup is not supported. BR,Einav Ezra
View Articleunable to create QP after set HUGE_RC to y
Hi, I had a problem since I set HUGE_RC to y in order for HCA to use huge pages for QP and CQ. It shows up the following error message: Unable to create QP.Couldn't create IB resources After I remove...
View ArticleRe: Connect-X adapter fails to receive invalid IPv6 frame
Can you see that interface drops counters increase (ethtool -S)?
View ArticleRe: unable to create QP after set HUGE_RC to y
Could you try set these variables and run test againexport MLX_QP_ALLOC_TYPE=HUGEexport MLX_CP_ALLOC_TYPE=HUGE
View ArticleRe: unable to create QP after set HUGE_RC to y
Hi, Thank you for replying. I tried to set the above mentioned variables, but it still shows the same error messages.I guess you mean MLX_CQ_ALLOC_TYPE instead of MLX_CP_ALLOC_TYPE. I am running...
View ArticleRe: Connect-X adapter fails to receive invalid IPv6 frame
Thanks for your answer. Drop counters do not change, but the following counters increase by one when "not receiving" the problematic frame :rx_packetsvport_rx_filteredrx_novlan_packets Do you know what...
View ArticleRe: Connect-X adapter fails to receive invalid IPv6 frame
I found this link : Counters Troubleshooting for Linux Driver that describes the vport_rx_filtered counter as: Received packets dropped due to packet check that was failed. I would like to disable all...
View Article