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Forum Discussion
Netgear M4300 and HCI: IGMP and multicast
I'm running tests on an HCI solution.
The best practices of this solution (which I prefer not to name, it's KVM based anyway) recommends disabling IGMP Snooping on the switches. The thing has been done, at least it seems to me.
The servers are connected via LAG, where VLANs have been created.
Simply under the IGMP setting I disabled all the options for the LAGs involved and also for all the VLANs (including 1). For safety I ran the "no set igmp" command via CLI.
In fact, in the IGMP section I don't see enabled ports, if I activate one it is shown in the list which -rightly- is now empty.
The HCI solution has two tools that monitor the status and identify any problems or configuration errors.
The first tool informs me that one (only one of three) is connected to switches with IGMP Snooping enabled.
The second tool informs me that the switches do not allow multicast traffic.
I'm not a networking expert.
I ask: what can I check in the configuration of Netgear switches?
2 Replies
Hi MauroViola ,
It's OK if you don't want to name it - NETGEAR partners with most KVM over IP manufacturers and we are certified everywhere. All these technologies are IGMP based so there is obviously a problem with your configuration. Everything should work by default in our VLAN 1 with IGMP Plus. But we now have the AV user interface to help you even further (without any IGMP configuration exposed). Please come to us sending an email to ProAVDesign@netgear.com and one of us will certainly help you factory-default and configure right your HCI solution.
Regards,
Whatever you want or think you need to achieve.
I'd recommend not to disable IGMP snooping on the device. If you go and disable IGMP snooping, you might see reduced multicast performance. experience various multicast issues, and finally monitor excessive false flooding within the device.
That much about best practice or other questionable tools where we have no insight.
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