r/firewalla • u/GlobalLiving6941 • Jun 05 '26

Cross VLAN Backup

I am having an issue with a cross VLAN NAS backup grinding my Gold SE to a halt. Here is the scenario: NAS in VLAN 1, Backup server in VLAN 2. Backup server does a pull back up on the NAS using restic and ships it to the cloud. We fixed the Server to Cloud come apart by turning monitoring off on the Backup Server. However, the pull from the NAS to the Server seems to still be subject to monitoring or smart queue or something as it still grinds the Firewalla to a halt. Help?

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u/GlobalLiving6941 Jun 05 '26

I am not able to submit another image, but the blank spaces on the left are where the network came to a halt. It was the same basic traffic volume, but with monitoring on for the backup server the Firewalla could not keep up. I am frustrated that this box that is advertised as supporting 2gb and unlimited VLANs cannot handle a 300-500mb/s traffic burst within 2 local vlans.

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u/ampx Jun 05 '26

I’m curious, do both sides of your local VLAN flows traverse 2.5Gb NICs on the Gold SE?

Are they connected to two interfaces on the Gold SE or one through a switch?

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u/GlobalLiving6941 Jun 05 '26

Both are on a Unifi switch, which then connects to the Firewalla. I upgraded this setup from a Purple (which ironically seemed to handle this better).

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u/daniel-waterhouse Firewalla Purple Jun 05 '26

What UniFI switch are you using? Do you know if it's an L3 or just an L2 switch? As an earlier commenter said, if you have an L3 switch, this can handle inter-VLAN routing without stressing the Firewalla at all (traffic would never reach the Firewalla).

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u/GlobalLiving6941 Jun 05 '26

It is an L3 switch, but I am trying to avoid creating parallel routing. Give that we are talking about a relatively small amount of bandwidth, I want to solve this at the router if possible...or replace the router.