[Ntop] Is PCI passthrough definitely needed for Ntopng Edge on KVM?

[Victor Hooi]

Hi,

Does Ntopng edge always need PCI passthrough on network cards?

I'm thinking of setting up a Proxmox 5.2 system, running ntopng Edge in a
KVM virtual-machine.

The physical machine has four on-board Ethernet ports, so I was going to
pass through two of these to act inline.

However, I see that
https://www.ntop.org/guides/nedge/get_started.html#running-into-a-vm mentions
that you must enable PCI passthrough.

Is this for performance reasons? Or there's some other reasons for it?

Thanks,
Victor

[Victor Hooi]

Hi Luca,

Thanks for getting back!

My knowledge of some of this is a little lacking, so forgive me if this is
naive.

However - what if you created a dedicated bridge interface in KVM, attach a
single physical Ethernet interface to that bridge, and only assign that
bridge to the ntopng Edge VM?

(I'm sorry, I didn't understand what you meant by bump in the wire).

Thanks!
Victor

Post by Victor Hooi
Victor
the problem is that when using virtual adapters you in essence use a
switch and thus we cannot implement the bump in the wire as the collision
domain will prevent it from working, So yes, you need PCIe passthrough
Regards Luca
Hi,
Does Ntopng edge always need PCI passthrough on network cards?
I'm thinking of setting up a Proxmox 5.2 system, running ntopng Edge in a
KVM virtual-machine.
The physical machine has four on-board Ethernet ports, so I was going to
pass through two of these to act inline.
However, I see that
https://www.ntop.org/guides/nedge/get_started.html#running-into-a-vm mentions
that you must enable PCI passthrough.
Is this for performance reasons? Or there's some other reasons for it?
Thanks,
Victor
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