vSohill
Expert
Expert

EGS throughput

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Hi,

What is the max Bw throughput på Edge Service gateway if I have 40 GB NICs?

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mdac
Enthusiast
Enthusiast

The VMXNET3 adapter will report a link speed of 10Gbps, but that is cosmetic only. It will function at the maximum speed possible and is limited only by the capability of the physical networking on the hypervisor. I've been able to get >30Gbps out of a pair of VMs using VMXNET3 adapters while on the same ESXi host.

My blog: https://vswitchzero.com Follow me on Twitter: @vswitchzero

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mdac
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Enthusiast

Hi vSohill,

There are many different factors that could impact ESG throughput, including the features being used, whether or not the firewall is enabled and VXLAN vs. VLAN interfaces etc. I don't have much experience with 40Gbps hardware, but with Quad-Large sized ESGs, line rate at 10Gbps is possible in some situations. Using large frames will get you best throughput, as it's usually packet rate that holds you back long before throughput is an issue. This is especially true if you are using the DFW or ESG firewalls as well as VXLAN backed networks. The below post has more information that may be helpful:

https://vswitchzero.com/2018/08/02/jumbo-frames-and-vxlan-performance/

Regards,

Mike

My blog: https://vswitchzero.com Follow me on Twitter: @vswitchzero
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vSohill
Expert
Expert

Thank you Mike,

Is the throughput limited to the Virtual NIC capacity ( VM vmxnet3 ) which is has limited capacity to10 GB ?

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mdac
Enthusiast
Enthusiast

The VMXNET3 adapter will report a link speed of 10Gbps, but that is cosmetic only. It will function at the maximum speed possible and is limited only by the capability of the physical networking on the hypervisor. I've been able to get >30Gbps out of a pair of VMs using VMXNET3 adapters while on the same ESXi host.

My blog: https://vswitchzero.com Follow me on Twitter: @vswitchzero

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vSohill
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Expert

Thank you