Multicast Issue with NX-OS (vPC) - Even groups work - Odd groups do not work

[ulrickfr2001]

Hi everyone,

We are facing an issue with Multicast using PIM-SM (ASM). All devices seem to be configured correctly but the multicast streams do not work as expected. Bellow the description of the behavior using the information provided in the diagram.

 - RP IP address : 172.19.1.241

 - Receiver IP address : 172.18.66.1

 - There is vPC configured between N5Ks and N7Ks with Vlan tag

 - The interconnections are configured with HSRP (for redundancy)

 - When the IP source address is 172.19.35.5, the stream on multicast group 239.225.1.3 is received but the stream on multicast group 239.225.1.4 is not.

 - When the IP source address is 172.19.35.6 the stream on multicast group 239.225.1.4 is received but the stream on multicast group 239.225.1.3 is not.

Can someone help ?

[paul driver]

Hello

if you perform the interface count along the rpf if the mc traffic then if for some reason a particular I interface  isn’t allowing mc for a certain group then you should be able to identify so

[ulrickfr2001]

What command do I need to check the mc traffic ?