vmbr0: port1(eno3) entered disabled state

[brebelo]

Hi all, I have a proxmox server, and sometimes I lost access to the machines and to the proxmox web console and I need to restart the network to regain the access.

I found this in the logs, seems to be related to a network port that has lost connection and can't reconnect again.

Any ideas?

 

[bbgeek17]

I found this in the logs, seems to be related to a network port that has lost connection and can't reconnect again.

It says the Link is Down. If this is corrected by network restart you should look at switch logs and NIC settings such as speed/duplex/etc. Check that the cable is not cut and try a new one. Sometimes flaky cables/connectors can lead to strange results, ie a loose cable going in/out when someone walks by a server cage...

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[Moayad]

Does this issue happen when the PVE has a load on the network, such as a backup job or migration?

Note: we recommend placing Corosync on its own, dedicated network [0] and adding a redundant network [1] for it to fall back on in case the first link fails.

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