Инструкции По Установке для 3com S7906E
1-20
To do...
Use the command...
Remarks
interface interface-type
interface-number
interface-number
Enter Ethernet port/OLT port
view or port group view
view or port group view
port-group manual
port-group-name
port-group-name
Required
Use either approach
Enable multicast source port
filtering
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 receiving such multicast traffic, the switch floods it in the VLAN, incurring
network bandwidth waste and low forwarding efficiency.
Configuring globally the function of dropping multicast packets
Follow these steps to configure globally the function of dropping multicast packets:
To do...
Use the command...
Remarks
Enter system view
system-view
—
Enter IGMP snooping view
igmp-snooping
—
Enable the function of dropping
multicast packets
multicast packets
drop-unknown
Required
Disabled by default
Configuring the function of dropping unknown multicast data packets in a VLAN
Follow these steps to configure the function of dropping unknown multicast data packets in a VLAN:
To do...
Use the command...
Remarks
Enter system view
system-view
—
Enter VLAN view
vlan vlan-id
—
Enable the function of dropping
unknown multicast data
packets
unknown multicast data
packets
igmp-snooping
drop-unknown
drop-unknown
Required
Disabled by default