Network of a node stops working when switch is rebooted

ctsde_markus

Member
Nov 22, 2019
9
3
8
Bavaria
I couldn't find anything that describes my problem so far.

I have a cluster of 3 nodes and recently i realized that one node was "offline" (it's a spare standby, so i didn't notice when exactly it went offline). After tempering with my switch configuration today i realized, that this node is offline whenever i reboot the switch to which it is connected. I don't see this behaviour on the other nodes.

After a switch reboot, i no longer can ping this node, although ip address show shows the eno1 interface is up, the correct link speed and the vmbr0 still has the correct IP configuration. But it can't send and receive anything over the network. In the switch diagnostics i can see the correct MAC of the NIC in the MAC table after the reboot, so the NIC itself obviously works.

My only solution so far is to go to the console and reboot the host.

How can i find out what's the problem here? Did anyone experience a similar problem? Is there a solution?

Thanks
Markus
 

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