H3C Technologies H3C S10500 Series Switches - Manual (Page 47)

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Configuring multicast source port filtering
When the multicast source port filtering feature is enabled on a port, the port can connect to only
multicast receivers rather than to multicast sources, because the port blocks all multicast data packets but
it permits multicast protocol packets to pass.
If this feature is disabled on a port, the port can connect to both multicast sources and multicast receivers.
Configuring multicast source port filtering globally
Follow these steps to configure multicast source port filtering globally:
To do... Use the command... Remarks
Enter system view system-view —
Enter IGMP-snooping view igmp-snooping —
Enable multicast source port
filtering
source-deny port interface-list
Required
Disabled by default.
Configuring multicast source port filtering on a port or a group of ports
Follow these steps to configure multicast source port filtering on a port or a group of ports:
To do... Use the command... Remarks
Enter system view system-view —
Enter Layer 2 Ethernet interface
view:
interface interface-type
interface-number
Enter Layer 2 Ethernet interface
view or port group view
Enter port group view:
port-group manual
port-group-name
Required
Use either command
Enable multicast source port
filtering
igmp-snooping source-deny
Required
Disabled by default.
Configuring the function of dropping unknown multicast data
Unknown multicast data refers to multicast data for which no entries exist in the IGMP snooping
forwarding table. When the switch receives such multicast traffic, the switch floods unknown multicast
data in the VLAN that the unknown multicast data belongs to, causing network bandwidth waste and low
forwarding efficiency.
Configuring the function of dropping multicast data globally
Follow these steps to configure globally the function of dropping multicast data:
To do... Use the command... Remarks
Enter system view system-view —
Enter IGMP-snooping view igmp-snooping —