Multicast issues through L2 Switched Vlan

Hi,
I have attached a high level design diagram which represents the network topology and multicasting is introduced on the network for camera streams. For multicast using “sparse-dense-mode” and OSPF is used as the routing protocol.
Multicast works good when we had a single receiver “Receiver-1” and this receiver is connected to a access switch which directly connects to the core 6500 switch through a L3 Vlan. Mroutes looks good and works as expected.
When a second receiver “Receiver-2” was introduced on the network and the configuration is no different to the previous configuration and the receiver is not getting any streams and the multicast doesn’t work as expected. The only difference between is the presence of a L2 switch which acts as a bridge between the Access and the Core 6500 switch.
I believe, the simplest option is to enable routing and multicast on the switch called “Core-2” instead of using it as a L2 transparent switch. But, I would like to explore the possible options before enabling multicast throughout the network.
Your thoughts and help will be highly appreciated.
Thanks
Rajesh

Hi,
If Core-2 is pure L2 switch and we are running PIM between C-3750-2 and Core-1, it should not play any role in forwarding multicast traffic. Please share
from Core-1,C-3750-1 and C-3750-2
- show ip mroute <group>
- show ip pim nei
- show ip pim rp mapping
From C-3750-1 and C-3750-2
- show ip igmp group
Regards,
Akash

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What am I missing?

Hi,
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Hi Team
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Sure.
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                                                Gi1/0/32, Gi1/0/49, Gi1/0/50
                                                Gi1/0/51, Gi1/0/52
2    VLAN0002                         active    Gi1/0/24, Gi1/0/25, Gi1/0/26
                                                Gi1/0/28, Gi1/0/33, Gi1/0/34
3    VLAN0003                         active    Gi1/0/35, Gi1/0/37, Gi1/0/38
                                                Gi1/0/39, Gi1/0/40
4    VLAN0004                         active    Gi1/0/41, Gi1/0/42, Gi1/0/43
                                                Gi1/0/44
5    VLAN0005                         active    Gi1/0/45, Gi1/0/46, Gi1/0/47
                                                Gi1/0/48
100 VLAN0100                         active
200 VLAN0200                         active
300 VLAN0300                         active
600 VLAN0600                         active
700 VLAN0700                         active
900 VLAN0900                         active
1002 fddi-default                     act/unsup
VLAN Name                             Status    Ports
1003 token-ring-default               act/unsup
1004 fddinet-default                  act/unsup
1005 trnet-default                    act/unsup
VLAN Type SAID       MTU   Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
1    enet 100001     1500 -      -      -        -    -        0      0
2    enet 100002     1500 -      -      -        -    -        0      0
3    enet 100003     1500 -      -      -        -    -        0      0
4    enet 100004     1500 -      -      -        -    -        0      0
5    enet 100005     1500 -      -      -        -    -        0      0
100 enet 100100     1500 -      -      -        -    -        0      0
200 enet 100200     1500 -      -      -        -    -        0      0
300 enet 100300     1500 -      -      -        -    -        0      0
600 enet 100600     1500 -      -      -        -    -        0      0
700 enet 100700     1500 -      -      -        -    -        0      0
900 enet 100900     1500 -      -      -        -    -        0      0
1002 fddi 101002     1500 -      -      -        -    -        0      0
1003 tr    101003     1500 -      -      -        -    srb      0      0
1004 fdnet 101004     1500 -      -      -        ieee -        0      0
VLAN Type SAID       MTU   Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
1005 trnet 101005     1500 -      -      -        ibm -        0      0
Remote SPAN VLANs
Primary Secondary Type              Ports

Multicast issues through L2 Switched Vlan

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