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Forum Discussion
M4200 -> M4300 Multicast Configuration (for NDI / Dante)
Hi all, I am not having any problems currently, but I wanted to run the config by this group and see if there's anything I'm missing or if any tweaks are in order... I have a M4200 with sever...
Does Netgear (or Newtek) have recommendations as far as IGMP settings recommended for NDI multicast? Such as Query Interval, Max Response, and Expiration? What about Fast Leave?
I thought everything was working fine with about 6x NDI multicast sources between these two switches, and suddenly one source completely locked up and froze frame.
I am seeing a bunch of "Timer for Group Membership Interval has expired! Removing membership for VLAN 1 Mac" in the log files but not sure it was about that particular source.
Hi...
Please see the NDI Network Guidelines attached.
These suggest the following:
• Disable Quality of Service
• Disable Jumbo Frames
• Enable Flow Control
• mDNS/Bonjour must be accessible for auto discovery
• Configure for each switch in multi-switch networks when using multicast
Set NDI connected switch ports to 1518, flow control on and untrusted QoS.
For Jumbo Frames and Flow Control settings, in the UI, navigate to:
"Switching => Ports => Frame Size".
The default is Jumbo Frames, so check the box next to the port number and change to "1518".
Enable "Flow Control" by again selecting the port number and select "Enable" in the "Flow Control" column.
This would also need to be carried out on the M4200 if NDI devices are connected.
Please also send the switch Tech Support file:
If the NDI devices are connected only to the M4300, do you still see the issue?
Thanks
Thanks. I've gone through the NDI Network Guidelines...
On Flow Control and changing frame size, should I change for all ports including the 10Gig trunk port connecting the two switches? QoS is configured for Dante, which is VLAN2, and I believe those settings apply to all VLANs?
Is setting the frame size to 1518 effectively disabling Jumbo Frames?
I will work to get switch configs posted when I can get into the site.
It should be fine to just change the frame size for the ports to which NDI devices are connected and not necessary to change on the uplink.
Once the default frame size of 9198 for jumbo frames is reconfigured for 1518 on a particular port where an NDI device is connected, this will disable jumbo frames for that port.
Only Dante devices should utilise the specific IP DSCP queue.
If any further issues, please also test the NDI devices when connected to the M4300 (if possible).
This would help with elimination.
Once the changes are made, please confirm the status and send the Tech Support file.
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