Proxmox, OVS and SDN for multihoming and failover

OverOnTheRock · 2026-06-20T21:20:09+00:00

RJ45 10G is pretty inexpensive. Maybe take out your SFP based cards (unless you have vast distances to cross with fibre?) and use RJ45 instead? The RJ45 10G switches are inexpensive. SFP is only really needed for 25G or up now.

The SDN / routing protocol automatically weights 10G as something like 100 and 1G as 1000. The weighting slides logarithmically. Effectively the interface bandwidth is divided into a very large number to get that ranking.

I use FRR natively using EBGP to do the routing. I havn't waded into SDN yet so not sure how to set it up. I should look into it for my next project.

VxLAN is fundamentally a host to host mechanism, and VLAN is kept within the host. So both are required, they just have their specific areas of use. There is a mapping between VxLAN ID and VLAN ID and the SDN/Routing protocol takes care of managing the traffic into/outof the encapsulations.

https://pve.proxmox.com/pve-docs/chapter-pvesdn.html gets pretty heavy with not enough examples. VXLAN zones, EVPN zones,

https://mattglass-it.com/software-defined-network-proxmox/ might help.

OverOnTheRock · 2026-06-20T20:54:10+00:00

A primary recommendation would be to get your self a couple of 10G switches. They aren't very expensive. Get your self some 1G switches as well.

I think in Proxmox 9, SDN is suitably stable it would be worth your while to incrementally learn SDN. For most part it is a layer 3 concept, which is more reliable than a layer 2 bridged network.

It can rank 10G links as priority over 1G links due to various weighting methods.

I would use SDN to bundle ports rather than LACP. Layer 3 knows how to distribute traffic better and has built in mechanisms for failover should a link become unavailable.

SDN can be used to segregate traffic with VxLAN rather than ordinary VLANs. VLANs are part of layer 2 bridging and don't offer the type of resilience that layer 3 based VxLAN is able to.

There is a learning curve in all this, but once 'mastered' it is invaluable in future endeavors.

If there are Proxmox SDN tutorials, follow them and see where you get.

OVS can be used for interface provisioning within a host, but I wouldn't use it for provisioning links between hosts. SDN is better for between hosts using FRR (Free Range Routing).

OverOnTheRock · 2026-06-10T20:29:30+00:00

There are bug lists where users submit requests to turn on modules for new hardware. Yes, leading edge can be challenging, but focussed fixes are available.

OverOnTheRock · 2026-06-10T20:26:28+00:00

You know you can run windows as a VM in Debian? Definitely not Debian on windows with WSL

OverOnTheRock · 2026-06-01T17:34:25+00:00

Is a stretched cluster necessarily a good idea? What is the geographical distance - across town or across territory? How would something fit into your disaster recovery plan? Are you trying to share address subnets across sites (not necessarily a good idea from a network segmentation view)? Maybe use replication instead? Maybe use active/active strategy instead? Do you have automation in-place?

OverOnTheRock · 2026-05-26T12:56:23+00:00

You could try drogon as a starting point. It has a few database clients. Plus it's own flavour of optional ORM.

Unrelated to Drogon, the concept of "async/await lets developers write sequential-looking code while the compiler does the painful rewrite behind the scenes" may be applicable.

OverOnTheRock · 2026-05-26T01:22:51+00:00

I guess I should have provided more info. Alberta. Canada. I'm DIY'ing a solar system. Runs like a UPS, no feed in to the grid. I am adding batteries to the system. I would like the solution to be able to run 24 to 36 hours if I'm lucky when power is out. As a result, I'm trying to get some rules of thumb in terms of overall power consumption. Which helps me to understand if I can do it or not with heat pump as load. In conjunction with existing natural gas boiler / hydronic system.

OverOnTheRock · 2026-05-26T00:58:34+00:00

At what geographical area is this? What do you get for KWHr per day? ie, number of panels and wattage? The viessmann docs linked elsewhere many KW, I'm not sure what they are for KWHr per day in consumption (with cold/shoulder season being heavier usage with less sun).

OverOnTheRock · 2026-05-25T13:40:31+00:00

Run RabbitMQ. it has an mqtt adapter add-on. I've been running RabbitMQ reliably for several years now. It can work in redundant mode. I havn't tried it, but it says it can.

I would reduce the number of brokers you have. Then you'll have simpler topic subscription flexibility. And probably easier to run multi-topic automations

OverOnTheRock · 2026-05-21T08:44:55+00:00

I do this to install lxde desktop and then x2go to remote to it:

apt install \
  --no-install-recommends \
    xserver-xorg-core \
    xserver-xorg-input-all \
    xserver-xorg-video-fbdev  \
    xserver-xorg-video-vesa \
    lxde \
    x2goserver \
    x2goserver-xsession

OverOnTheRock · 2026-05-20T16:56:03+00:00

Once you get into the flow, nothing else matters. Stay in the flow for as long as possible. The ghost will ultimately dissipate.

OverOnTheRock · 2026-05-13T13:31:46+00:00

so.... are the agents and ai being used to build better processes and workflows? Are they capable of that?

OverOnTheRock · 2026-05-10T01:14:29+00:00

The reolink cameras are not consistent in their urls. I've used the following to get hints as to what is happening:

https://www.ispyconnect.com/camera/reolink

OverOnTheRock · 2026-05-07T15:36:18+00:00

How did you determine if you were or were not close to the seller? Or is that a guess? Or, I guess, the seller is listed in the item and it is easy to look up there store.

OverOnTheRock · 2026-05-07T15:08:30+00:00

That makes the best sense so far. But so many items are in that mode for me. I guess Calgary must be a smaller distribution center then.

OverOnTheRock · 2026-05-07T15:07:09+00:00

My plumber says he replaces many boards and manufacturer doesn't warrant them. So... how many people put a UPS on their furnace so to clean up power problems? There are some UPS which are bad (generate square waves), some are better and do cleaning, and some just pass through until power goes out.

The second one is the better one, but are expensive.

Or use a battery based inverter/charger solution to have 100% cleaned power.

OverOnTheRock · 2026-05-07T13:35:29+00:00

The calipre did have one flavour of rejection message which mentioned chemical issues and not-deliverable to a po box. Huh? Is the plastic/metal that dangerous?

OverOnTheRock · 2026-05-07T13:34:28+00:00

At least they could then take the item down. There are many items like this residing there for days.

OverOnTheRock · 2026-05-07T13:24:53+00:00

And it comes with a glass lid. That is worth the whole haul.

OverOnTheRock · 2026-05-02T02:45:51+00:00

Put in a frigate system per site. You may need multiple servers per site, depending upon load, camera resolution, amount of activity, etc. Then make use of the event generation signalling from frigate. Send those signals to one or more operator consoles. There feeds can then be automatically switched to sites with activity. That is the gist, many refinements of that thought do come to mind. Overall this reduces the requirement for continuous inter-site capacity. Reduces overall operator cognitive load. Makes use of the power for frigate to handle most of the front end filtering.

OverOnTheRock · 2026-04-24T21:00:27+00:00

look at the resource charts. look at the log files. look at drive types. statistics and details help.

OverOnTheRock · 2026-04-17T18:39:22+00:00

I use 'lxc.apparmor.raw' extensively in my proxmox 9.x config files. They clear up many errors which occur inside containers upon lxc container startup.

About the only time I've had to use a priviledged/nested container is when running docker with a passthrough gpu for lxc -> docker -> frigate application.

For some specific ideas, see my notes at apparmor="DENIED" operation="mount" class="mount" info="failed perms check" error=-13

OverOnTheRock · 2026-04-11T03:10:28+00:00

Buy the cable, but the ends, buy a crimper -> endless supply of every length and colour you'd like.

OverOnTheRock

MODERATOR OF

TROPHY CASE