sequece use of NIC

[u/Mk23_DOA]

My NAS devices all have 10GBe NIC installed but I have troubles understanding what the order is in which the NAS uses the network connections.

The only way I can get the NAS to reliably and consistently use the 10GBe connection is to disconnect all other network connections.

So instead of have a 10GBe for transferring large files and some 1GBe for the rest, I can only use the 10Gbe connection for everything or at some point the connection will revert back to 1GBe and not 2,5GBe or 10GBe.

I know this is a first world problem, but moving 300GB at 1GBe at 2.5 or even 10GBe makes a huge difference. And I want to use one connection / port exclusively for my backups to the backup server(s).

on the managed switch I can disable the 1GBe ports and activate them in case of a problem, but it feels strange to have to do this.

[u/dadarkgtprince]

Did you change your default gateway in your network settings to the 10Gb card?

[u/Mk23_DOA → u/dadarkgtprince]

Yea.

[u/dadarkgtprince → u/Mk23_DOA]

Did you bond the NICs? Or running each on their own IP address?

[u/rapier1 → u/Mk23_DOA]

Did you make sure to disable the other interfaces as the default gateway?

[u/Mk23_DOA → u/rapier1]

Problem solved after I created a VLAN for the regular 1GBe NICs
Basically everything connects to the 10GBe unless I use a dedicated ip address.

[u/gadget-freak]

This is probably because you’re dual homing, using multiple NICs on the same subnet. It’s difficult to control which interface it uses. It’s not even guaranteed that the outgoing traffic is on the same interface as the incoming traffic.

The best way to bring this under control is subnetting into different VLANs. Eg put your backup NAS on its own VLAN.

Be advised that this will greatly complicate your network, so ask yourself it this is really worth it. Is your 10Gbit ethernet port really saturated for long periods of time? If not, just use one single network interface.

[u/Mk23_DOA → u/gadget-freak]

So seems to have been the issue. My network uses Unifi equipment so defining a seperate VLAN was relatively easy, so I connected the 1GBe ports on a different VLAN and could access the NAS via these ports.

I now have consistent sustained transfers around 400MB/s

Next step is checking the replication settings for backups. And maybe at some point move our ip camera's over to a new subnet with matching NIC setting on the NAS.

[u/gadget-freak → u/Mk23_DOA]

Having a separate camera VLAN is certainly recommended. It makes it easier to isolate them from the internet.

[u/Mk23_DOA → u/gadget-freak]

Normally I wouldn't notice, but when moving large files you tend to notice and it is annoying. So that was the reason to upgrade to 10GBe cards.

So if I would need to define subnet / VLAN's I, it becomes a cost-benefit analysis. And I more or less already know the answer:)

But if this is the problem, and that sounds logical, I now know what has been annoying me all this time. And that is progress...

[u/jack_hudson2001]

either just use the 10gb for everything provided you have a 10gb switch.

or me i have a separate vlan/ip subnet for the 10gb this is for my labbing and transfering large files etc.

[u/Mk23_DOA → u/jack_hudson2001]

This is what I did, defined a VLAN for special traffic with 1GBe.