Multicast traffic issue with 3750x stack

[Anthonize Rajaratne]

Hi, 

Does 'no ip cef optimize neighbor resolution' create any issues for multicast traffic? I have implemented this command on 3750x switch stack to avoid a bug issue running on 15.0-2.SE2. 

I'm broadcasting some multicast traffic from our data center to a destination which is having above 3750x as a core. Non of the users behind this 3750x cannot receive any multicast traffic. It worked prior to upgrade the switch to 15.0 code. 

Thanks in advance. 

[Jon Marshall]

Did multicast work after you upgraded but before you added that command ?

Or did you not try that.

What do the basics show ie "sh ip mroute" on the switch and can you see the stream being received by the switch etc.

Jon