Command Manual – Multicast Protocol
Quidway S8500 Series Routing Switches Chapter 1 IGMP Snooping Configuration Commands
Huawei Technologies Proprietary
1-5
Parameter
enable: Enables IGMP Snooping.
disable: Disables IGMP Snooping;
Description
Use the igmp-snooping enable command to enable IGMP Snooping.
Use the igmp-snooping disable command to disable IGMP Snooping.
By default, the switch disables IGMP Snooping.
Caution:
z When configuring IGMP Snooping, first enable global IGMP Snooping in system
view, and then enable IGMP Snooping in VLAN view. Otherwise the IGMP Snooping
function will not take effect.
z If the VLAN VPN is enabled on a port, the IGMP Snooping feature cannot be
enabled on the VLAN for the port or the IGMP feature cannot be enabled on the
corresponding VLAN interface.
z If IGMP Snooping feature is enabled on a VLAN, or IGMP is enabled on the VLAN
interface, you cannot add the member port on which VLAN VPN is enabled into the
VLAN.
z Isolate-user-VLAN supports the IGMP-Snooping function. After IGMP-Snooping is
enabled under isolate-user-VLAN, all secondary VLANs are IGMP-Snooping
enabled. It makes no sense to enable IGMP-Snooping for a secondary VLAN.
z In a secondary VLAN, IGMP packets will be directly converted and processed in
isolate-user-VLAN, namely all the multicast services are implemented within
isolate-user-VLAN.
z Ports in secondary VLANs cannot be used as source addresses of multicast.
Example
# Enable IGMP Snooping in system view.
<Quidway> system-view
System View: return to User View with Ctrl+Z.
[Quidway] igmp-snooping enable
# Enable IGMP Snooping on VLAN 10
<Quidway> system-view
System View: return to User View with Ctrl+Z.
[Quidway] vlan 10