Multicast in Powerconnect 81xx

Hi,

I must upgrade a cluster of switch Powerconnect 81xx from firmware 5.1.0.1 to firmware 6.1.2.4 or higher. This switches stream television in multicast. Could you please help me to configure the multicast on the firmware 6.1.2.4 or higher.

The PowerConnect 81xx is my NETWORK CORE, there are other switches PowerConnect 55xx in my network. The upgrade of the PowerConnect 55xx from firmware 4.1.0.8 to firmware 4.1.0.20 doesn't affect the multicast.

Here's a part of my running config of PowerConnect 81xx

interface vlan 122
ip address 192.168.122.254 255.255.255.0
ip igmp
ip igmp version 2
ip pim
exit
interface vlan 124
ip address 192.168.124.254 255.255.255.0
ip helper-address 192.168.104.21
ip igmp
ip igmp version 2
ip pim
exit
interface vlan 125
ip helper-address 192.168.100.23
ip helper-address 192.168.100.24
exit

no ip igmp snooping
no ipv6 mld snooping
ip multicast
ip igmp
ip pim dense
no iscsi enable
sflow 2 destination owner 2 notimeout
sflow 2 destination 192.168.100.27
!

Thanks