DGS-3710 Series Layer 2 Managed Gigabit Switch CLI Reference Guide
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27-15
clear igmp_snooping statistics counter
Description
This command is used to clear the IGMP snooping statistics counter on the switch.
Format
clear igmp_snooping statistics counter
Parameters
None.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example
To clear the IGMP snooping statistic counter:
DGS-3710-12C:admin#clear igmp_snooping statistics counter
Command: clear igmp_snooping statistics counter
Success.
DGS-3710-12C:admin#
27-16
config igmp_snooping data_driven_learning
Description
This command is used to enable or disable data driven learning of an IGMP snooping group.
When data-driven learning is enabled for the VLAN, the switch receives the IP multicast traffic on
this VLAN, and an IGMP snooping group is created. That is, the learning of an entry is not
activated by IGMP membership registration, but activated by the traffic. For an ordinary IGMP
snooping entry, the IGMP protocol will take care of the aging out of the entry. For a data-driven
entry, the entry can be specified not to ageout or to ageout by the aging timer.
When data driven learning is enabled, the multicast filtering mode for all ports is ignored. This
means multicast packets will be flooded. If a data-driven group is created and IGMP member ports
are learned later, the entry will become an ordinary IGMP snooping entry. Thus, the aging out
mechanism will follow the rules of an ordinary IGMP snooping entry.
Format
config igmp_snooping data_driven_learning [all | vlan_name <vlan_name> | vlanid
<vlanid_list>] {state [enable | disable] | aged_out [enable | disable] | expiry_time <sec 1-
65535>} (1)