Questions tagged [mellanox]

For questions about or involving Mellanox Technologies, who produces adapters, switches, software, cables and silicon for markets including company data centers, cloud computing, computer data storage and financial services.

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Mellanox (NVIDIA) SN3700 switch: Cumulus Linux configuration to force traffic path?

I want to stress all ports on a SN3700 switch with iPerf. I want to force the traffic to go through each port, so port 1 to port 2, port 2 to port 3, port 3 to port 4, etc. The switch is running ...
CrystalBryan's user avatar
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Hardware compatibility of SFP+ devices [closed]

I have a Supermicro E300-8D (used as firewall) I want to plug to a Mellanox SX1012 device. I have tried different cables : mellanox mc2309130-001 supermicro cbl-0348L different switches : Mellanox ...
Dede's user avatar
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Inconsistent behavior of link aggregation

I'm testing bandwidth between two switches and I noticed link aggregation behaves inconsistently between test runs. I'm testing with a single instance of iperf with 2 streams. Sometimes the load is ...
Elliott B's user avatar
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3 votes
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Is there an equivalent of the Cisco/ Cisco esque command "ip helper-address a.b.c.d" on Mellanox switches?

Apologies for my newbie question. I have recently had a Mellanox switch added to the mix. I was using an "IP helper-address" to forward DHCP requests in different VLANs to my DHCP server(s) ...
user993269's user avatar
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Can I use a 40G transceiver in a QSFP56 NIC to connect to a 10G transceiver/switch if the NIC supports 10G speeds?

We're purchasing new servers that have Mellanox ConnectX 6 network cards in them, which accept QSFP56 transceivers. The card says it supports 10/25/40/50/100/200G. However, our switching backbone is ...
dodexahedron's user avatar
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Configure VEPA on Mellanox MLNX-OS MSN2700

Can anyone please help me with configuring reflective relay on Mellanox MLNX-OS MSN2700 (Mellanox switch)? This is to enable configuration of VEPA(Virtual Ethernet Port Aggregator). I was able to find ...
Marc Spencer's user avatar
2 votes
1 answer

Mellanox IS5031 switch field upgrade to 36-port switch

We bought IS5031 switch and found only top 18 ports works. The website says This stand-alone switch is available as an 18-port switch that can be field upgraded to a 36-port switch But no further ...
wm8120's user avatar
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IPoIB with Netem (Latency emulation) Poor performance

I have to emulate a wide area network. My setup contains two servers with MT27500 Family [ConnectX-3] Infiniband cards. Default latency between both nodes is ~0.4ms and iperf test shows throughput of ...
Khayam Gondal's user avatar
1 vote
5 answers

Configure Out of Band management on MLNX-OS

I'm trying to setup Out Of Band management on a MLNX-OS based Mellanox switch It seems by default the mgmt0-1 interfaces are in the same VRF as all other interfaces, and I assume I have to create a ...
JFL's user avatar
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