IGMP Snooping question

[jordan78]

Hello everyone,

I have a little problem on my Proxmox cluster, at times it happens that the whole cluster is restarted because of the fencing.

Currently I have 10 machines on a first Nexus switch and 1 other machine on a second Nexus switch.

During a flap of the link between the two Nexus all the nodes have reboot invoking fencing.

I notice that igmp snooping is disabled on my switches. Can that be the reason ?

The doc says we have to activate it with the igmp snooping querier but I don't have the option on my Nexus's.

Sincerly,
Jordan

 

[wolfgang]

I notice that igmp snooping is disabled on my switches. Can that be the reason ?

Yes you should always turn igmp snooping on, to reduce the traffic on you network.
And yes it can happen depend on your network topology that loop protection kill a link.