PNET VM inside Proxmox keeps looping

[jacca92]

Hello,

I have a problem which I hope I will be able to describe. It's quite complex in my opinion, or I make it too complex for myself. Hard to say.

Also, I am not entirely sure whether this is a correct place to post it.
If not, take my post down, I won't mind - by I've been struggling with this for so long, that I don't know what to do anymore.

This is the output of proxmox "interfaces" file.


This is our out of band network, which I don't want to use for remaining traffic.

Inside, I have a PNETlab VM.
The gateway (or 2 actually) can be pinged by the PNET VM itself - 172.16.11.1 and 172.16.0.101. Network is also reachable no problem.

Now, to the main point.
I want to use network switches inside the PNET, but whenever I add a new network device inside PNET VM, which is tagged in VLAN 11 (and then create VLAN 11 on the switch itself, I guess some kind of loop happens and my proxmox is down completely.



My question is basically this - how do I add specific VLANs to proxmox's VM? Is it as shown above, but differently, cause my solution does not work?
Or is it supposed to be inside PNET's CLI?

This is PNET's "interfaces" file:


Any suggestions would be much appreciated.
Thanks in advance!

 

[shanreich]

The problem is that you have multiple NICs as bridge-ports. If they're all connected to the same switch you are creating a loop. If you want to use multiple NICs that way, you will need to create a bond on top of those 4 NICs and then use the bond as bridge port instead.

 

[jacca92]

The problem is that you have multiple NICs as bridge-ports. If they're all connected to the same switch you are creating a loop. If you want to use multiple NICs that way, you will need to create a bond on top of those 4 NICs and then use the bond as bridge port instead.

You mean bond which will connect those 4 NIC's into one? Or bond which has this vmbr0 inside?

 

[shanreich]

A bond is for combining multiple network devices into a single one. Without it, you will run into the issues as described in your original post. I recommend you read the respective section in the documentation [1] and familiarize yourself a bit more with the network stack.

[1] https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysadmin_network_bond