Issues with a 40G network
Budget €30-250 EUR
I had a 1Gb network which I upgraded recently to 40Gbps.
I have DELL servers with ESXi7 installed.
When I run iperf between two virtual machines, I get a bandwitch ranging from 6Gbits/sec to 10Gbits/sec.
When I copy files with scp I getting a transfer speed of about 110-120MB/s which is very far from the theorical bandwitch of 1GB/s x 4 ~ 4G/s for a 40G network.
Recently I discovered that encryption reduce transfer speed so, I setup FTP server. Transfer speed doubled with FTP. I got a transfer rate about 240-280 MB/s.
I also updated MTU to 9000 on both hosts and VMs but transfer rates are still the same.
I am looking for an Cisco/VMWare expert who can identify and solve the issue.
I need 40G Network bandwidth as configured in Switch to be reflected in Virtual machines
I also need the transfer speed to reflect as close as possible transfer speed of 40G network (~1250 MB/s x 4).
You will need to connect remotely using TeamViewer.
This is the current architecture details:
- Cisco Nexus 9396PX Switch with 40G module
- 4 Dell PowerEdge R930 Servers (VMware ESXi7 hosts)
- NVME disks on each server
- 40 Gbps Mellanox NIC on ESXi7 hosts
- QSFP+ DAC cables to connect servers to switch
9 freelancers are bidding on average €208 for this job
Hello Dear, I am an Expert Network Engineer and I am working as Professor and Expert Consultant Network Engineer in a Multinational ISP. I have great hands-on experience for more than 10 years in various network tech More
Hi, Let me look into this issue. I would be delighted to work on this project and resolve the issue. Thanks Ashish A.
Worked with all kind of servers and all panels since 2007 And currently working as linux system administrator If you need to start as soon as possible contact me And tell me more details about what you want to Tell th More
Hi, I am Data Center Specialist having 10 years of experience in managing network and system administration. I am VMware VCP-DCV certified professional and also CCNP Certified. I have strong working experience on Vmwar More
Hi there, How are you? I have gone through your project details. I would like to tell you that l have a great bunch of experience in Cisco, Network Administration, VMware, Linux and System Admin. For that I would requ More
Hi there, Based on the information you have provided, it seems like you have already taken some troubleshooting steps, such as setting up an FTP server and updating the MTU to 9000 on both hosts and VMs. However, you a More
CERTIFIED ENGINEER, EXPERT IN ENGINEERING&SCIENCE, Dear Client, I have Keenly gone through your project requirements as given in your project description. I gladly inform you that i am in possession of all clearly sta More