Issues with a 40G network

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 technologies. I have Cisco CCIE Enterprise (Enterprise Core & Enterprise Advanced Infrastructure Implementation), Cisco Specialist - Enterprise SD-WAN Implementation, Juniper JNCIA-Junos (JN0-102) and JNCIA (Cloud) certificates. I have very good knowledge in Cisco wireless technology, VOIP & Network Security. My specialties: - Design/implement medium and large scale enterprise networks. - Configure Cisco Routers (ASR 1K & 9k, 2900, 2800, ISR 4K, 878, 888), Switches (Cat 6500, 3750, 3850, 2900, 2960, SG- 300, SG-500, [Nexus 5K, 7K and 9K]), Firewalls ([ASA 5505, 5506x, 5508], Fortigate, Palo Alto) and Wireless Acess Points 1800 and 2700. - Configure Juniper Routers (M7, M10, MX 480, MX 960) and SRX (300, 500). - Huawei, Mikrotik, HP & Ubiquiti devices Expert. - Packet Tracer, GNS-3, EVE-NG, VMWare workstation & VirtualBox Expert. - Routing protocols (RIP, OSPF, EIGRP, ISIS & BGP) Configuration and troubleshooting Expert and Switching Expert (VLANs, STP, VTP...). - VPN Configuration Expert (IPSEC/L2TP, GRE/PPTP, OPENVPN & SoftEther). - Linux, Unix & windows servers Expert. - Wireshark Traffic Capture & Analysis Expert. - Write technical reports and summaries. Thanks to check my profile and let me know if you are interested. Best Regards,

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 the time and cost accurately, please contact me now, looking forward to work with you Best regards

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 Vmware infrastructure and Cisco Routing and Switching. I have resolved similar problems in my previous history. Please message me to discuss more on chat.

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 require from your end to start a chat with me to discuss about Issues with a 40G network. It would be my pleasure to build long term relationship with you. All my skills are related to this particular project. Hoping to hear from you soon. Cheers. Rashid Amjad.

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 are still not getting the desired transfer speed of 1250 MB/s x 4 on your virtual machines. As a professional in this field, I would first recommend reviewing the configuration settings of your network components to ensure that they are optimized for 40G network speeds. This includes reviewing the settings on your Cisco Nexus 9396PX switch, your Dell PowerEdge R930 servers, and your Mellanox NIC on ESXi7 hosts. It may also be helpful to review the network utilization and bandwidth usage during the file transfer to identify if there are any bottlenecks or congestion issues. Additionally, it may be worth reviewing the TCP window scaling settings on both the client and server to ensure that they are configured appropriately for high-speed transfers. Finally, it may be necessary to conduct a more in-depth analysis of your network traffic to identify any underlying issues that may be affecting your network performance. This can be done using network analysis tools such as Wireshark. I am confident that with a thorough review and analysis of your network configuration and traffic, we can identify and resolve the issues you are experiencing. Please let me know if you have any further questions or concerns. Thank you.

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 stated required skills (Network Administration, VMware, System Admin, Linux and Cisco) as this is my area of professional specialization having completed all engineering certifications and developed adequate experience in this field. I humbly request you to consider my bid for professional and quality services always, with no timeline and quality excuses, and 100% client satisfaction guaranteed. Message me we discuss more about the project. THANK-YOU and WELCOME.

I've 20+ year of experience in IT networking technology. will get your issue/setup within 2 days. The given details looks like to build a bundle of ports to run on 40G on switch side and same Nic teaming is required on server side as well to bundle the chassis uplink ports.

Hello, Am a CCIE#26611 with extensive experience in routing & switching, datacenter, virtualization, programmability & automation. Am sure I’ll be able to troubleshoot / fix your issue & review all your configuration against vendor best practices. Hope to contact me soon. Regards,