Server to Server Basic Multicast Query

Dear All,

I have a below query related to Basic (Server to Server) multicast within
the same subnet and vlan but connected to two different switches.

Below is the scenario:

In N5K = Acting as a layer 2 and "ip igmp snooping" is enabled
In Dist_CAT65K= Acting as a layer 2 for Vlan1 and "no ip igmp snooping"
configured globally (disabled)
In Core_CAT65K= Acting as a layer 3 for Vlan1 (SVI) and "no ip igmp
snooping" configured globally (disabled)

Server-1 ---> N5K-1 ---> Dist_CAT65K-1 ---> "Core_CAT65K-1 <<====>>
Core_CAT65K-2" <--- Dist_CAT65K-2 <---- N5K-2 <----- Server-2

Kindly suggest what is the best way to enable multicast end to end.

I have one solution to enable 'pim' under SVI in the core switch:

Core_CAT65K:
!
interface Vlan1
 ip address 1.1.1.1 255.255.255.0
 ip pim sparse-dense-mode
end
!

To enable 'pim,' Do we need to enable "ip multicast-rouing"?

Do we need to enable "ip igmp snooping" in Core_CAT65K?

Is it better to enable "ip igmp snooping" in Dist_CAT65K?

Or Multicast will still work without doing anything because IGMP is
disabled on Core_CAT65K & Dist_CAT65K and Multicast packets will be
treated as Broadcast in Core_CAT65K.

What is the best way?

Thanks

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Received on Sun Jan 05 2014 - 14:33:33 ART