IGMP Snooping without Router

[lagapidis (Lazarus Agapidis)]

Hello Farid

@faridmamedov002

I just checked Cisco IOU, Cisco Virl switch and 3600 in Gns, however the command was not available on those switch.

Once again, it depends upon the IOS version on the device. We are not able to provide IOS for use with GNS3, but in order to find out which IOS/platform combination willl support the command, you can use the Cisco Feature Navigator.

@faridmamedov002

Regarding multicast mac address, as I mentioned before I already configured the querier and the multucast traffic is passing through the switch as in the example in this switch, however MAC table for multucast is empty.

If this was done using Cisco IOU, there may be a problem in the way it operates as far as IGMP snooping goes. Take a look at this post for more info:

IGMP Snooping

Hello Farid Looking at your configuration, report suppression is enabled, so you shouldn’t be seeing this behavior. However doing a little more research, I have found that IGMP snooping on Cisco IOU does seem to have some problems. Others have reported that it is not functioning as expected, and it could simply be a bug. Still others have mentoined that IOU only approximates IOS functionality and may not be true to actual device behavior. Take a look at the following posts on the GNS3 forum…

I hope this has been helpful!

Laz