Re: Mellanox QSFP to SFP+ adaptor
Ophir,Thank you for your response.I am using a QSFP to SFP+ Mellanox adaptor – MAM1Q00A-QSA.I am trying to use it with a QSFP to 4xSFP+ 3m breakout copper cable form Amphenol – PN - 621700003.So I...
View ArticleRe: Mellanox QSFP to SFP+ adaptor
It is possible that the Brocade switch could have made changes to the EEPROM component on the cable. We reallyhave no way of telling whether it is possible. It is possible that Amphenol blocked the...
View ArticleRe: QoS for Virtual Functions(SR-IOV devices)
Hi,How many VLANs you have on the VM? is it one VLAN or two?Do you work in VGT mode? (VLAN Guest Tagging ) or VST (VLAN switching tagging)?You can review the OFED UM on the SR-IOV chapter (4.15.6.3)Do...
View ArticleRe: QoS for Virtual Functions(SR-IOV devices)
Thanks for getting back to me.. I would like to have multiple VLANs with each VLAN having their own QoSs inside VM. It would be nice to configure everthing inside the guest instead of doing anything at...
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Big problem under CentOS 6.5 and the HP NC542m Network cards! I need help! I
Hello! I have a really really big Problem. I explain my problem later in this message! My Hardware:HP Bladecenter c30004 x BL460c G68 x Flex HP NC542m Mezz Interconnect Bay1: Cisco Catalyst Blade...
View ArticleTransceiver Module Compatability
Hi all, Can anyone tell me if optical transceivers are interchangeable between communication standards? IE, can I use any QSFP to MPO transceiver for infiniband or does it need to be designed for...
View ArticleVMA cpu soft locks on Ubuntu 14.04
Hi all, I'm attempting to use VMA for the first time with my application. I'm using a Mellanox ConnectX-3 (MCX311A-XCAT) card, The firmware-version is 2.31.5050 and I am using VMA version 6.6.4.0...
View ArticleRe: Re: ConnectX-3 Pro VXLAN Performance Overhead
#! /bin/bash set -x DEV=mlx4NET=21 ip addr flush dev mlx4ip link set dev mlx4 downip link del vxlan0 ip link set dev $DEV mtu 9000ip addr add 10.224.$NET.27/24 brd + dev $DEVip link set dev $DEV upip...
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Re: Big problem under CentOS 6.5 and the HP NC542m Network cards! I need help! I
Hello! Maybe i make on the Driver installation of CentOS 6.5 a error??? Because under Windows Server 2008 R2 works all fine! Port Mapping is correct! The Driver for Windows Server 2008 R2 works really...
View ArticleSX1024 no communication
Hi all, We have an SX1024 and compute nodes with Chelsio T520-CR.On the nodes this is the output of ethtool: [root@comp13 ~]# ethtool eth2Settings for eth2: Supported ports: [ ] Supported link...
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Simultanous TX/RX does not achieve 80Gbps (ConnectX-3 )?
Hello, Mellanox NIC info: Model: MCX354APSID: MT_1090110019Driver: mlx4_enversion: 2.2-1.0.1 (Jun 13 2014)firmware-version: 2.31.5050 We installed 2 Mellanox NIC on serverA and 2 of them on...
View ArticleRe: How to set IPoIB interface MTU in VmWare 5.5
Try the procedure I think helped me also.. Disconnect all interfaces from the switch... Then connect a 4k configured interface to the switch (be sure it's 4k)... Later connect the others.. It should...
View ArticleRe: x3 Card, Dual port. Does port 1 IB port 2 ETH work now
Has anyone tried if you can put 1 adaptor in IB mode and 1 adaptor in ETH mode? I also needed the config that grant @ schultztechnology.com wanted (1 interface ETH and 1 interface IB) and it seems it's...
View ArticleProblem installing ethernet driver, missing symbol backport_vzalloc
I have been able to build version 2.2 of the Ethernet driver against a 2.6.32-358 Linux kernel; however, I am unable to install mlx4_core because of a missing symbol: backport_vzalloc. Should the...
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Problems installing Ethernet driver, missing symbol backport_vzalloc
I have built version 2.2 against my Linux 2.6.32-358 kernel; however, the install of mlx4_core fails because of a missing symbol: backport_vzalloc. I am not sure whether the backport should be part of...
View ArticleRe: Re: QoS for Virtual Functions(SR-IOV devices)
Hi,Could you try the following:At the VM:- Configure 3 VLANs (let's say) and map each one of to egress with specific prioritylet's say - Management VLAN10 - priority 1 - Service VLAN30 - priority...
View ArticleRe: Simultanous TX/RX does not achieve 80Gbps (ConnectX-3 )?
Hi,Even if you have two 40GbE ports. each port can reach close to 40GbE, but when both of them pass traffic you are limited to the PCIe capacity with is ~54-55Gb/s.in addition, try to use high MTU side...
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Re: 56 GbE over a ConnectX-3 VPI adapter
Hi guys,when using the last MLNX-OFED and firmware, there is no need to change the ini file (unless you have two servers back to back) The adapter automatically discovers and changes the speed...
View Articlelag lacp with 2 MT27500 Family [ConnectX-3] : total 80g throughput
Hello, I would like to know if there's a limitation on the maximum throughput possible with this card.Actually i'm currently doing benchmarks and i tried to setup a link aggregation of 2 cards but...
View ArticleAutoinstall over ConnectX VPI
Hello, I have a kernel module enhancement request to mlx4_core because of an issue I have running auto-install on systems using ConnectX VPI cards over 10G ethernet. My issue is that the default...
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