Dell NativeEdge: Virtual Machine Network Interface Reports 1 Gbps Despite Higher Expected Throughput

Summary: NativeEdge Endpoints use QEMU/LibVirt as their virtualization technology. A Virtual Machine (VM) on a NativeEdge Endpoint may show a network interface speed of 1 Gbps, but this is not the actual speed. ...

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Symptoms

When data is transferred between two VMs on the same Endpoint using a virtual network interface controller (VNIC), speeds can exceed 1 Gbps.

The operating system reports VNIC as 1 Gbps.

Cause

The NativeEdge VNIC does not have a fixed speed. It implements a network interface in software, achieving the fastest possible speed based on the network, CPU, memory load on the virtualization host, and the traffic. 

Resolution

To evaluate the actual throughput of a VNIC:

  • Use benchmarking tools like iperf or netperf between two VMs or a VM and an external host.
    This method gives a more realistic view of the network bandwidth achievable under real workloads.

Additional Information

The VNIC types that NativeEdge uses are:

  • Intel e1000 (Windows)
  • virtio-net (*nix)

 

Produse afectate

NativeEdge Solutions, NativeEdge
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Article Number: 000310698
Article Type: Solution
Ultima modificare: 23 May 2026
Version:  2
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